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Questions and Answers
What is the collective term for sepals?
What is the collective term for sepals?
- Gynoecium
- Corolla
- Calyx (correct)
- Androecium
The petals of a flower are the outermost whorl.
The petals of a flower are the outermost whorl.
False (B)
What is the function of sepals?
What is the function of sepals?
To cover and protect the flower bud.
The collective term for the male floral organs is called the ______.
The collective term for the male floral organs is called the ______.
Which part of the carpel receives the pollen?
Which part of the carpel receives the pollen?
Match the flower types with their definitions:
Match the flower types with their definitions:
A flower with only stamens is known as a ______ flower.
A flower with only stamens is known as a ______ flower.
A monoecious plant has separate male and female plants.
A monoecious plant has separate male and female plants.
What is an example of a plant with a determinate growth habit?
What is an example of a plant with a determinate growth habit?
All flowering plants have the same reproductive structures.
All flowering plants have the same reproductive structures.
What is the function of the stigma in the flower?
What is the function of the stigma in the flower?
What term describes a plant that has staminate and pistillate flowers on separate plants?
What term describes a plant that has staminate and pistillate flowers on separate plants?
The process of pollen shedding by the anther is called _____
The process of pollen shedding by the anther is called _____
A synoecious plant has all perfect flowers on a single plant.
A synoecious plant has all perfect flowers on a single plant.
What are the two bracts that enclose the sexual parts of a cereal flower called?
What are the two bracts that enclose the sexual parts of a cereal flower called?
Match the following parts of a flower with their definitions:
Match the following parts of a flower with their definitions:
A spikelet in grasses is composed of two glumes enclosing one or more _______.
A spikelet in grasses is composed of two glumes enclosing one or more _______.
Which of the following correctly describes pollination?
Which of the following correctly describes pollination?
Indeterminate growth habit means that vegetative growth stops once flowering begins.
Indeterminate growth habit means that vegetative growth stops once flowering begins.
Which of these cereals typically has many florets per pair of glumes?
Which of these cereals typically has many florets per pair of glumes?
What type of fruit is formed when the seed coat fuses to the ovary wall in grasses?
What type of fruit is formed when the seed coat fuses to the ovary wall in grasses?
Only 5% of flowering plants are wind pollinated.
Only 5% of flowering plants are wind pollinated.
What are the four distinct sets of floral organs in a typical flower?
What are the four distinct sets of floral organs in a typical flower?
Match the cereal crops with their characteristic regarding florets:
Match the cereal crops with their characteristic regarding florets:
What structure becomes a seed inside the ovary after pollination?
What structure becomes a seed inside the ovary after pollination?
Name two adaptations of flowers for wind pollination.
Name two adaptations of flowers for wind pollination.
The male parts of the cereal flower typically consist of four stamens.
The male parts of the cereal flower typically consist of four stamens.
A __________ has flowers arranged along a central rachis that open from the bottom upward.
A __________ has flowers arranged along a central rachis that open from the bottom upward.
Which of the following plants produces flowers in a raceme?
Which of the following plants produces flowers in a raceme?
Match the following inflorescence types with their characteristics:
Match the following inflorescence types with their characteristics:
A simple umbel has many small umbels clustered at the top of the peduncle.
A simple umbel has many small umbels clustered at the top of the peduncle.
What is the common term used for the central stalk running through an inflorescence?
What is the common term used for the central stalk running through an inflorescence?
What is the primary difference between pollination and fertilization?
What is the primary difference between pollination and fertilization?
A complete flower contains both male and female reproductive structures.
A complete flower contains both male and female reproductive structures.
What is the term used for the male structures of a flower?
What is the term used for the male structures of a flower?
A flower called ___ only has female reproductive structures.
A flower called ___ only has female reproductive structures.
Which of the following best defines a perfect flower?
Which of the following best defines a perfect flower?
Match the plant terms to their definitions:
Match the plant terms to their definitions:
All spikes are categorized as inflorescences.
All spikes are categorized as inflorescences.
What are the structures that make up a spikelet?
What are the structures that make up a spikelet?
What is the primary characteristic of a caryopsis?
What is the primary characteristic of a caryopsis?
The capitulum is a head-like inflorescence composed of a single large flower.
The capitulum is a head-like inflorescence composed of a single large flower.
What are nectaries?
What are nectaries?
In the legume, dehiscence occurs along _____ sutures at maturity.
In the legume, dehiscence occurs along _____ sutures at maturity.
Match the following types of fruits with their characteristics:
Match the following types of fruits with their characteristics:
Which family is known for producing legumes?
Which family is known for producing legumes?
90% of flowering plants, including most dicots, are wind pollinated.
90% of flowering plants, including most dicots, are wind pollinated.
What must happen for a harvestable seed to develop?
What must happen for a harvestable seed to develop?
Which of the following characteristics is typical for dicot plants?
Which of the following characteristics is typical for dicot plants?
The root apical meristem is responsible for the growth of above-ground plant structures.
The root apical meristem is responsible for the growth of above-ground plant structures.
What is the primary function of root hairs?
What is the primary function of root hairs?
Monocot roots typically develop from the ______.
Monocot roots typically develop from the ______.
Match the root system characteristics with their functions:
Match the root system characteristics with their functions:
Which statement correctly describes the structure of monocot leaves?
Which statement correctly describes the structure of monocot leaves?
Secondary adventitious roots are traceable back to the radicle in monocots.
Secondary adventitious roots are traceable back to the radicle in monocots.
The ______ meristem is responsible for the increase in a plant's length.
The ______ meristem is responsible for the increase in a plant's length.
What is the primary root structure found in most dicot crops?
What is the primary root structure found in most dicot crops?
Adventitious roots are typical in dicot plants.
Adventitious roots are typical in dicot plants.
What is the main function of stems in plants?
What is the main function of stems in plants?
A __________ is the part of a stem between two nodes.
A __________ is the part of a stem between two nodes.
Match the following growth patterns to their characteristics:
Match the following growth patterns to their characteristics:
Which of the following terms describes a bud located in the leaf axil?
Which of the following terms describes a bud located in the leaf axil?
In determinate growth, plants can flower and produce seeds at different times.
In determinate growth, plants can flower and produce seeds at different times.
What type of growth pattern allows a plant to produce flowers and seeds while continuing to grow?
What type of growth pattern allows a plant to produce flowers and seeds while continuing to grow?
Which leaf shape is characterized by being heart-shaped with a notch at the base?
Which leaf shape is characterized by being heart-shaped with a notch at the base?
Serrate leaves have margins that are smooth and not jagged.
Serrate leaves have margins that are smooth and not jagged.
What is phyllotaxy?
What is phyllotaxy?
The leaf arrangement characterized by two leaves at each node is known as __________ leaf arrangement.
The leaf arrangement characterized by two leaves at each node is known as __________ leaf arrangement.
Match the following leaf margin types with their descriptions:
Match the following leaf margin types with their descriptions:
Which type of leaf is described as being much longer than wide, with the widest point below the middle?
Which type of leaf is described as being much longer than wide, with the widest point below the middle?
Stipules are appendages found at the base of the stem, not the petiole.
Stipules are appendages found at the base of the stem, not the petiole.
What is the function of stipules in plants?
What is the function of stipules in plants?
What indicates the presence of a true leaf rather than a leaflet in a plant?
What indicates the presence of a true leaf rather than a leaflet in a plant?
A leaflet has an axillary bud.
A leaflet has an axillary bud.
What is the term for the main central vein of a compound pinnate leaf?
What is the term for the main central vein of a compound pinnate leaf?
A compound leaf with exactly three leaflets is known as a __________ leaf.
A compound leaf with exactly three leaflets is known as a __________ leaf.
Which type of leaf has several major veins radiating from a central point?
Which type of leaf has several major veins radiating from a central point?
Match the leaf types with their characteristics:
Match the leaf types with their characteristics:
The leaflets of a compound leaf can have their own axillary buds.
The leaflets of a compound leaf can have their own axillary buds.
What structure may attach leaflets to the rachis in a compound leaf?
What structure may attach leaflets to the rachis in a compound leaf?
Which factor does not influence the number of tillers produced by a plant?
Which factor does not influence the number of tillers produced by a plant?
Dicot leaves typically have parallel venation.
Dicot leaves typically have parallel venation.
What are the two main types of leaf venation found in dicots?
What are the two main types of leaf venation found in dicots?
Branching in dicots occurs from ______ located in the leaf axils.
Branching in dicots occurs from ______ located in the leaf axils.
Match the following terms related to dicot leaves with their descriptions:
Match the following terms related to dicot leaves with their descriptions:
Which characteristic is true of dicot leaf attachment?
Which characteristic is true of dicot leaf attachment?
In dicots, the main central vein is called the rachis.
In dicots, the main central vein is called the rachis.
What is the basic function of leaves?
What is the basic function of leaves?
Which type of growth habit describes plants with stems that lie flat against the ground?
Which type of growth habit describes plants with stems that lie flat against the ground?
Erect stems are typically strong enough to support themselves without external support.
Erect stems are typically strong enough to support themselves without external support.
What is the term for a side shoot produced by a cereal plant when an axillary bud breaks dormancy?
What is the term for a side shoot produced by a cereal plant when an axillary bud breaks dormancy?
The stem of a cereal crop is typically called a ______.
The stem of a cereal crop is typically called a ______.
Match the plant growth habits with their descriptions:
Match the plant growth habits with their descriptions:
Which of the following is NOT an example of a plant with twining stem growth habit?
Which of the following is NOT an example of a plant with twining stem growth habit?
Cereal plants initially have long above-ground stems and their leaves arise from different height levels.
Cereal plants initially have long above-ground stems and their leaves arise from different height levels.
Name one example of a plant that exhibits prostrate stem growth habit.
Name one example of a plant that exhibits prostrate stem growth habit.
Flashcards
Pollination vs. Fertilization
Pollination vs. Fertilization
Pollination is the transfer of pollen to the stigma. Fertilization is the fusion of pollen and egg cells to form a zygote.
Dicot Flower Structures
Dicot Flower Structures
A dicot flower has sepals, petals, stamens (with anthers and filaments), and a pistil (with stigma, style, and ovary).
Monoecious Plants
Monoecious Plants
Plants with separate male and female flowers on the same plant.
Perfect Flower
Perfect Flower
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Imperfect Flower
Imperfect Flower
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Complete Flower
Complete Flower
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Incomplete Flower
Incomplete Flower
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Spikelet Structure
Spikelet Structure
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Inflorescence
Inflorescence
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Determinate Growth Habit
Determinate Growth Habit
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Indeterminate Growth Habit
Indeterminate Growth Habit
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Pistil/Carpel
Pistil/Carpel
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Stamen
Stamen
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Dehiscence
Dehiscence
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Anthesis
Anthesis
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Pollination
Pollination
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Dioecious Plant
Dioecious Plant
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Polygamous Plant
Polygamous Plant
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Spikelet
Spikelet
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Glume
Glume
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Lemma & Palea
Lemma & Palea
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Rachilla
Rachilla
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Hull
Hull
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Caryopsis
Caryopsis
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Wind Pollination
Wind Pollination
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Spike Inflorescence
Spike Inflorescence
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Raceme Inflorescence
Raceme Inflorescence
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Panicle Inflorescence
Panicle Inflorescence
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Umbel Inflorescence
Umbel Inflorescence
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Capitulum Inflorescence
Capitulum Inflorescence
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What are the key adaptations for wind pollination in plants?
What are the key adaptations for wind pollination in plants?
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Sepal
Sepal
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Calyx
Calyx
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Petal
Petal
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Corolla
Corolla
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Androecium
Androecium
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Carpel/Pistil
Carpel/Pistil
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Gynoecium
Gynoecium
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Receptacle
Receptacle
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Staminate Flower
Staminate Flower
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Pistillate Flower
Pistillate Flower
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Capitulum
Capitulum
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Dicot Flower Adaptations
Dicot Flower Adaptations
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Fruit Development
Fruit Development
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Silique
Silique
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Pulse Crops
Pulse Crops
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Dicot Dehiscence
Dicot Dehiscence
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Monocot Roots
Monocot Roots
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Dicot Roots
Dicot Roots
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Root Function: Absorption
Root Function: Absorption
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Root Function: Anchorage
Root Function: Anchorage
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Root Function: Storage
Root Function: Storage
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Root Hairs
Root Hairs
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Apical Meristem
Apical Meristem
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Vegetative Growth
Vegetative Growth
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Taproot
Taproot
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Secondary Roots
Secondary Roots
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Node
Node
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Internode
Internode
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Axillary Bud
Axillary Bud
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Determinate Growth
Determinate Growth
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Indeterminate Growth
Indeterminate Growth
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Growth Habit
Growth Habit
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Erect Stem
Erect Stem
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Prostrate Stem
Prostrate Stem
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Twining Stem
Twining Stem
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What is a culm?
What is a culm?
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What is tillering?
What is tillering?
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What are adventitious roots?
What are adventitious roots?
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How does tillering benefit the plant?
How does tillering benefit the plant?
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Why are the first leaves of cereal crops close together?
Why are the first leaves of cereal crops close together?
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Tiller Production
Tiller Production
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Dicot Stem Growth
Dicot Stem Growth
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Leaf Functions
Leaf Functions
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Reticulate Venation
Reticulate Venation
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Cordate Leaf
Cordate Leaf
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Deltoid Leaf
Deltoid Leaf
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Linear Leaf
Linear Leaf
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Lanceolate Leaf
Lanceolate Leaf
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Ovate Leaf
Ovate Leaf
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Entire Leaf Margin
Entire Leaf Margin
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Lobed Leaf Margin
Lobed Leaf Margin
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Serrate Leaf Margin
Serrate Leaf Margin
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Compound Leaf
Compound Leaf
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Simple Leaf
Simple Leaf
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How to tell a leaflet from a simple leaf
How to tell a leaflet from a simple leaf
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Pinnate Venation
Pinnate Venation
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Palmate Venation
Palmate Venation
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Sessile Leaflet Attachment
Sessile Leaflet Attachment
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Petiolule Leaflet Attachment
Petiolule Leaflet Attachment
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Study Notes
Plant Reproductive Growth
- Plant reproductive growth involves the shoot apical meristem transitioning from producing vegetative organs to flowering structures.
- Inflorescences consist of flowering units on stems.
- Some plants' vegetative growth ceases after flowering (determinate growth), while others continue (indeterminate growth).
- Flowers are for sexual reproduction, with female parts (pistil/carpel) including stigma, style, and ovary, and male parts (stamens) including filament and anther.
- Dehiscence is the opening of a structure to release contents, like pollen from anthers.
- Pollination involves pollen transfer to the stigma.
- Fertilization happens when sperm cells from pollen reach the egg cell in the ovule.
- Flowers have four whorls: sepals (outermost), petals, stamens (male), and carpels/pistils (female).
- A complete flower has all four whorls; an incomplete flower lacks one or more.
- A perfect flower has both male and female parts; an imperfect flower lacks either.
- Monoecious plants have both male and female flowers on the same plant; dioecious plants have separate male and female plants; synoecious plants have perfect flowers.
- Flower types include complete/incomplete, perfect/imperfect, monoecious/dioecious/synoecious/polygamous.
- Inflorescences in cereal crops are composed of spikelets with glumes enclosing one or more florets (small flowers).
- Each floret has a lemma and palea surrounding the flower's reproductive structures.
- The ovary contains the ovules which will develop into seeds.
- Pollination in cereal crops is primarily wind-pollinated.
- Inflorescence types include racemes (flowers along a central axis), panicles (branched inflorescences), umbels (flowers clustered at the same point), and capitulum (large flower head).
- Insect pollination is common in dicot flowers with adaptations like large flowers, colors, nectaries, etc.
- Dicot fruit structures include legumes, siliques, and achenes categorized as either dehiscent (splitting open) or indehiscent (not splitting open).
- A caryopsis is a special dry, single-seeded fruit, unique to grasses, where the pericarp (ovary wall) fuses with the seed coat (testa).
General Information on Reproductive Growth
- Shoot apical meristem (SAM) controls vegetative and reproductive growth, switching to flower production.
- Pollination and fertilization are crucial parts of sexual reproduction.
- Flowers consist of various parts for sexual reproduction.
Flowering of Cereal Crops
- Spikelets hold florets, enclosed by glumes
- Florets have lemma and palea bracts.
- Ovary is enclosed within lemma and palea, with feathery stigmas at the top for pollen reception.
- Male parts (stamens) emerge between lemma and palea.
- Cereal seeds grow into seeds that fill the ovary completely.
- Ovary walls fuse with seed coats.
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