Podcast
Questions and Answers
True or false: Conifers produce flowers.
True or false: Conifers produce flowers.
False
What is the gametophyte generation very reduced in?
What is the gametophyte generation very reduced in?
What type of trees or shrubs produce cones?
What type of trees or shrubs produce cones?
Which of the following is a characteristic of conifers?
Which of the following is a characteristic of conifers?
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What happens when a pollen grain reaches the ovule?
What happens when a pollen grain reaches the ovule?
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What is the gametophyte of a pine tree?
What is the gametophyte of a pine tree?
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What is the name of the structure in which coniferous seeds are found?
What is the name of the structure in which coniferous seeds are found?
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What is the difference between gymnosperms and angiosperms?
What is the difference between gymnosperms and angiosperms?
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What is a pine tree?
What is a pine tree?
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True or false: Gymnosperms are the most successful group of plants.
True or false: Gymnosperms are the most successful group of plants.
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What is the purpose of a thick waxy cuticle on conifers?
What is the purpose of a thick waxy cuticle on conifers?
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What are the two groups of seed plants?
What are the two groups of seed plants?
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What is the gametophyte generation in seed-bearing plants?
What is the gametophyte generation in seed-bearing plants?
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True or false: Conifers produce flowers?
True or false: Conifers produce flowers?
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True or false: Pollen grains are the male gametophyte of conifer species.
True or false: Pollen grains are the male gametophyte of conifer species.
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What is the gametophyte generation in seed-bearing plants?
What is the gametophyte generation in seed-bearing plants?
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What happens to the megasporocyte during fertilization?
What happens to the megasporocyte during fertilization?
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Conifers are ______ used in construction and paper production.
Conifers are ______ used in construction and paper production.
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What is the purpose of conifers?
What is the purpose of conifers?
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What is the first step of the process of conifer reproduction?
What is the first step of the process of conifer reproduction?
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What type of plants are angiosperms?
What type of plants are angiosperms?
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True or false: Conifers produce fruits?
True or false: Conifers produce fruits?
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Where are conifers typically found?
Where are conifers typically found?
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Where are conifers typically found?
Where are conifers typically found?
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How many haploid cells are produced when the megasporocyte undergoes meiosis?
How many haploid cells are produced when the megasporocyte undergoes meiosis?
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What are the two types of spores produced by angiosperms?
What are the two types of spores produced by angiosperms?
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What is contained in the pollen wall?
What is contained in the pollen wall?
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What is contained within the pollen wall?
What is contained within the pollen wall?
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What type of seed do gymnosperms produce?
What type of seed do gymnosperms produce?
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True or false: The pollen tube reaches the female gametophyte before the eggs mature.
True or false: The pollen tube reaches the female gametophyte before the eggs mature.
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Which of the following is true about the root system of a pine tree?
Which of the following is true about the root system of a pine tree?
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What type of tree is a pine tree?
What type of tree is a pine tree?
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True or false: Angiosperms do not need water for sexual reproduction.
True or false: Angiosperms do not need water for sexual reproduction.
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What is the most common feature of conifers?
What is the most common feature of conifers?
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What is the common feature of conifers?
What is the common feature of conifers?
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How is the gametophyte protected?
How is the gametophyte protected?
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How do gymnosperms differ from angiosperms?
How do gymnosperms differ from angiosperms?
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Many conifer species, such as ______, larch, fir, and spruce, are evergreen.
Many conifer species, such as ______, larch, fir, and spruce, are evergreen.
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What is the fertilized ovule (seed) retained for?
What is the fertilized ovule (seed) retained for?
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True or false: Conifers are found primarily in low altitudes.
True or false: Conifers are found primarily in low altitudes.
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What are the seeds of conifers found on?
What are the seeds of conifers found on?
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How is fertilization accomplished in seed-bearing plants?
How is fertilization accomplished in seed-bearing plants?
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What is not dependent on water in seed-bearing plants?
What is not dependent on water in seed-bearing plants?
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What is the commercial importance of conifers?
What is the commercial importance of conifers?
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Conifers are ______ for about one-third of the world's forests.
Conifers are ______ for about one-third of the world's forests.
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What is the purpose of secondary growth in seed plants?
What is the purpose of secondary growth in seed plants?
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What is the result of the pollen tube extending to the female gametophyte?
What is the result of the pollen tube extending to the female gametophyte?
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True or false: Conifers are found at low altitudes?
True or false: Conifers are found at low altitudes?
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What is the result of fertilization?
What is the result of fertilization?
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True or false: The megaspore develops into an embryo.
True or false: The megaspore develops into an embryo.
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What is the result of a fertilized ovule?
What is the result of a fertilized ovule?
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What is the seed of a conifer enclosed in?
What is the seed of a conifer enclosed in?
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What is secondary growth in seed plants responsible for?
What is secondary growth in seed plants responsible for?
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What is the origin of angiosperms?
What is the origin of angiosperms?
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True or false: Male gametes are conveyed to the ovum by a pollen grain.
True or false: Male gametes are conveyed to the ovum by a pollen grain.
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What type of seed does a conifer have?
What type of seed does a conifer have?
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True or false: Conifers are used for timber and to make paper.
True or false: Conifers are used for timber and to make paper.
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What type of root system does a pine tree typically have?
What type of root system does a pine tree typically have?
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What type of leaves do conifers usually have?
What type of leaves do conifers usually have?
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What are conifers commercially used for?
What are conifers commercially used for?
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What is the purpose of the air sacs in a pollen grain?
What is the purpose of the air sacs in a pollen grain?
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What is the origin of angiosperms?
What is the origin of angiosperms?
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What is the pollen wall?
What is the pollen wall?
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What are microspores and megaspores?
What are microspores and megaspores?
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What is not true about angiosperms?
What is not true about angiosperms?
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What type of spores do angiosperms produce?
What type of spores do angiosperms produce?
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True or false: Angiosperms have one seed leaf.
True or false: Angiosperms have one seed leaf.
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What does the fertilized ovule receive from the parent sporophyte?
What does the fertilized ovule receive from the parent sporophyte?
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What enables water in the soil to be reached?
What enables water in the soil to be reached?
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What are stomata?
What are stomata?
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What is the waxy cuticle of a conifer used for?
What is the waxy cuticle of a conifer used for?
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What is the seed of a conifer found on?
What is the seed of a conifer found on?
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What are the distinguishing features of conifers?
What are the distinguishing features of conifers?
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True or false: Conifer seeds are found inside an ovary.
True or false: Conifer seeds are found inside an ovary.
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True or false: Conifers are used for timber and wood pulp?
True or false: Conifers are used for timber and wood pulp?
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Conifers produce products such as ______ and wood pulp.
Conifers produce products such as ______ and wood pulp.
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What type of vascular tissue do conifers have?
What type of vascular tissue do conifers have?
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What is the name of the specialised leaves on which ovules are found?
What is the name of the specialised leaves on which ovules are found?
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What are the components of a male and female cone?
What are the components of a male and female cone?
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Which type of tree produces both male and female cones?
Which type of tree produces both male and female cones?
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How many haploid cells are produced when the megasporocyte undergoes meiosis?
How many haploid cells are produced when the megasporocyte undergoes meiosis?
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What is the first step in the fertilization process?
What is the first step in the fertilization process?
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How many archegonia does the female gametophyte contain?
How many archegonia does the female gametophyte contain?
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True or false: Pollination of conifer species occurs within a year.
True or false: Pollination of conifer species occurs within a year.
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True or false: Conifers have a thin waxy cuticle.
True or false: Conifers have a thin waxy cuticle.
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How long does it usually take for fertilization to occur?
How long does it usually take for fertilization to occur?
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What is a fertilized ovule?
What is a fertilized ovule?
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What is produced by secondary growth?
What is produced by secondary growth?
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True or false: Conifers have a thin waxy cuticle?
True or false: Conifers have a thin waxy cuticle?
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What is the second step in the fertilization process?
What is the second step in the fertilization process?
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What is the origin of angiosperms?
What is the origin of angiosperms?
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What type of reproduction occurs when sperm and egg nuclei unite?
What type of reproduction occurs when sperm and egg nuclei unite?
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What is the main purpose of the sporophylls in a pine tree?
What is the main purpose of the sporophylls in a pine tree?
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What is a fertilized ovule?
What is a fertilized ovule?
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What type of tree is a conifer?
What type of tree is a conifer?
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What is the purpose of the epidermis of aerial parts?
What is the purpose of the epidermis of aerial parts?
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What happens inside each pollen sac?
What happens inside each pollen sac?
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True or false: The ovules of an ovulate cone scale contain megasporangia.
True or false: The ovules of an ovulate cone scale contain megasporangia.
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What is the name of the structure in which coniferous ovules are found?
What is the name of the structure in which coniferous ovules are found?
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True or false: A fertilized ovule is not a seed.
True or false: A fertilized ovule is not a seed.
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What feature do conifers lack?
What feature do conifers lack?
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What are conifers commercially important for?
What are conifers commercially important for?
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What is the epidermis of aerial parts, particularly leaves, responsible for?
What is the epidermis of aerial parts, particularly leaves, responsible for?
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Where are the seeds of conifers located?
Where are the seeds of conifers located?
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What type of seed does conifers produce?
What type of seed does conifers produce?
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What type of cuticle do conifers have?
What type of cuticle do conifers have?
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Where are conifers found?
Where are conifers found?
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What is the gametophyte always protected inside?
What is the gametophyte always protected inside?
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True or false: Conifers produce fruits.
True or false: Conifers produce fruits.
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True or false: Conifers produce seeds on ovuliferous scales?
True or false: Conifers produce seeds on ovuliferous scales?
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What enables water in the soil to be reached?
What enables water in the soil to be reached?
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What is required for angiosperms to reproduce sexually?
What is required for angiosperms to reproduce sexually?
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True or false: Angiosperms produce naked seeds.
True or false: Angiosperms produce naked seeds.
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What type of plant does not have flowers or fruits?
What type of plant does not have flowers or fruits?
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What are the two large air sacs inside each pollen grain used for?
What are the two large air sacs inside each pollen grain used for?
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Do angiosperms need water for sexual reproduction?
Do angiosperms need water for sexual reproduction?
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True or false: The megasporocyte undergoes meiosis to produce a megaspore.
True or false: The megasporocyte undergoes meiosis to produce a megaspore.
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What is the main purpose of the meiosis in a pollen sac?
What is the main purpose of the meiosis in a pollen sac?
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How long does it usually take for fertilization to occur after pollination?
How long does it usually take for fertilization to occur after pollination?
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What is true about gymnosperms?
What is true about gymnosperms?
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What is the purpose of the pollen tube?
What is the purpose of the pollen tube?
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What is the purpose of the pollen tube?
What is the purpose of the pollen tube?
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What type of leaves do conifers have?
What type of leaves do conifers have?
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What is the gametophyte always protected inside?
What is the gametophyte always protected inside?
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How are male gametes conveyed to the ovum?
How are male gametes conveyed to the ovum?
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What is the fertilization process dependent on in seed-bearing plants?
What is the fertilization process dependent on in seed-bearing plants?
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What is the result of meiosis in the microsporocytes?
What is the result of meiosis in the microsporocytes?
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What is the purpose of a pollen tube?
What is the purpose of a pollen tube?
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What is the purpose of cones in conifers?
What is the purpose of cones in conifers?
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What does the sporophyte provide for the gametophyte?
What does the sporophyte provide for the gametophyte?
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How does the female gametophyte develop?
How does the female gametophyte develop?
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What protects the plant from desiccation?
What protects the plant from desiccation?
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What type of structures do conifers produce?
What type of structures do conifers produce?
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True or false: Conifers are found further south than any other tree?
True or false: Conifers are found further south than any other tree?
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How are male gametes conveyed to the ovum?
How are male gametes conveyed to the ovum?
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What is the main purpose of conifers?
What is the main purpose of conifers?
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True or false: Conifers are used to make resins and turpentine.
True or false: Conifers are used to make resins and turpentine.
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What type of tree are conifers?
What type of tree are conifers?
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What is the result of fertilization?
What is the result of fertilization?
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What type of vascular tissue does a conifer have?
What type of vascular tissue does a conifer have?
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What type of tree produces two different types of spores?
What type of tree produces two different types of spores?
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What is the result of the ovule after fertilization?
What is the result of the ovule after fertilization?
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True or false: A pollen grain is enclosed in a pollen wall.
True or false: A pollen grain is enclosed in a pollen wall.
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True or false: Angiosperms have their origin among living seed-producing members of the ferns and their close relatives.
True or false: Angiosperms have their origin among living seed-producing members of the ferns and their close relatives.
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What is the origin of angiosperms?
What is the origin of angiosperms?
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What is not a requirement for angiosperm reproduction?
What is not a requirement for angiosperm reproduction?
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What enables water in the soil to be reached?
What enables water in the soil to be reached?
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What is the first step of the process of conifer reproduction?
What is the first step of the process of conifer reproduction?
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True or false: Conifers produce resins and turpentine?
True or false: Conifers produce resins and turpentine?
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True or false: Microspores divide by meiosis.
True or false: Microspores divide by meiosis.
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What is the name of the specialised leaves on which ovules are found?
What is the name of the specialised leaves on which ovules are found?
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True or false: Conifers have an ovuliferous scale.
True or false: Conifers have an ovuliferous scale.
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What is the result of pollination?
What is the result of pollination?
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Which group of plants is the most successful?
Which group of plants is the most successful?
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What are the seeds of conifers enclosed in?
What are the seeds of conifers enclosed in?
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What is found on ovuliferous scales?
What is found on ovuliferous scales?
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What type of leaves does a pine tree typically have?
What type of leaves does a pine tree typically have?
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What allows gaseous exchange between the plant and atmosphere?
What allows gaseous exchange between the plant and atmosphere?
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What is the name of the specialised leaves on which coniferous seeds are located?
What is the name of the specialised leaves on which coniferous seeds are located?
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What is the epidermis of aerial parts, particularly leaves, capable of?
What is the epidermis of aerial parts, particularly leaves, capable of?
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What is the purpose of the ovuliferous scales of conifers?
What is the purpose of the ovuliferous scales of conifers?
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What type of tree produces only one type of spore?
What type of tree produces only one type of spore?
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True or false: Angiosperms produce only megaspores.
True or false: Angiosperms produce only megaspores.
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What is the result of meiosis in the megasporocyte?
What is the result of meiosis in the megasporocyte?
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What is the fertilized ovule (seed) retained for?
What is the fertilized ovule (seed) retained for?
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True or false: Male gametes do not need to swim to reach the ovum.
True or false: Male gametes do not need to swim to reach the ovum.
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What type of sporangia do conifers produce?
What type of sporangia do conifers produce?
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What other products are conifers used for?
What other products are conifers used for?
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What type of seed does a conifer have?
What type of seed does a conifer have?
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What type of plant is a gymnosperm?
What type of plant is a gymnosperm?
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What type of tree remains permanently in the sporangium?
What type of tree remains permanently in the sporangium?
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How many ovules are present on an ovulate cone scale?
How many ovules are present on an ovulate cone scale?
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What type of tree produces both male and female gametophytes?
What type of tree produces both male and female gametophytes?
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What is the difference between a megaspore and a microspore?
What is the difference between a megaspore and a microspore?
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What is the purpose of drought-resistant structures in hot dry environments?
What is the purpose of drought-resistant structures in hot dry environments?
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What type of wood is produced by conifers?
What type of wood is produced by conifers?
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What is found inside the ovule?
What is found inside the ovule?
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What is the main purpose of the seed coat?
What is the main purpose of the seed coat?
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What is a fertilized ovule?
What is a fertilized ovule?
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True or false: An ovulate cone scale has one ovule.
True or false: An ovulate cone scale has one ovule.
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What is the name of the structures that contain the seeds of conifers?
What is the name of the structures that contain the seeds of conifers?
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What can plants show to adapt to hot dry environments?
What can plants show to adapt to hot dry environments?
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True or false: Conifers are found further north than any other type of tree.
True or false: Conifers are found further north than any other type of tree.
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True or false: Conifers produce seeds inside an ovary?
True or false: Conifers produce seeds inside an ovary?
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How do gymnosperms differ from angiosperms?
How do gymnosperms differ from angiosperms?
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True or false: Gymnosperms are still living plants.
True or false: Gymnosperms are still living plants.
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What type of tree produces both male and female cones?
What type of tree produces both male and female cones?
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True or false: Conifers are commercially important?
True or false: Conifers are commercially important?
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What type of plants are conifers?
What type of plants are conifers?
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True or false: Conifers are commercially important for their timber.
True or false: Conifers are commercially important for their timber.
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What is the gametophyte always protected inside of?
What is the gametophyte always protected inside of?
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What is the purpose of specialized adaptations to hot dry environments?
What is the purpose of specialized adaptations to hot dry environments?
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What type of tree produces both the male and female cones?
What type of tree produces both the male and female cones?
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What type of seed do angiosperms produce?
What type of seed do angiosperms produce?
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What is the result of microsporocytes dividing by meiosis?
What is the result of microsporocytes dividing by meiosis?
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What type of plant produces cones?
What type of plant produces cones?
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True or false: A pollen tube extends from the pollen grain to the egg.
True or false: A pollen tube extends from the pollen grain to the egg.
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What is the purpose of the waterproof cuticle?
What is the purpose of the waterproof cuticle?
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What is the main difference between conifers and deciduous trees?
What is the main difference between conifers and deciduous trees?
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What is the main difference between conifers and other trees?
What is the main difference between conifers and other trees?
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What is the result of the megaspore developing into a female gametophyte?
What is the result of the megaspore developing into a female gametophyte?
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What is the purpose of an ovule?
What is the purpose of an ovule?
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What is the purpose of a thick waxy cuticle?
What is the purpose of a thick waxy cuticle?
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How many ovules are contained in an ovulate cone scale?
How many ovules are contained in an ovulate cone scale?
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Study Notes
- Seed plants are divided into two groups, gymnosperms and angiosperms.
- Gymnosperms produce naked seeds, while angiosperms have two seed leaves.
- Gymnosperms are extinct, while angiosperms are the most successful group of plants.
- Angiosperms probably have their origin among extinct seed-producing members of the ferns and their close relatives.
- Angiosperms produce microspores and megaspores, which are different types of spores.
- The embryo sac (megaspore) remains completely enclosed in the ovule (megasporangium), and a fertilized ovule is a seed.
- Angiosperms do not need water for sexual reproduction because the male gametes do not swim.
- Male gametes are conveyed to the ovum by a pollen tube.
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