96 Questions
What is the main function of apical meristems?
Produce new cells for growth
Which tissue system component is responsible for photosynthesis?
Parenchyma
What is the main function of ground tissue in a plant organ?
Support and structure
Which region of a root plays a key role in protecting tissues from damage?
Root Cap
Which primary meristem gives rise to the epidermis of a plant organ?
Protoderm
What is the main function of vascular bundles in a plant organ?
Transport water and minerals
Which of the following is NOT a component of xylem tissue?
Companion cells
What is the primary function of vessel elements?
Allowing water and mineral transport
Which statement about tracheids is NOT true?
They have thin primary cell walls
What is the primary function of phloem tissue?
Conducting dissolved food materials
Which of the following is a component of phloem tissue?
Companion cells
In herbaceous dicotyledonous stems, what is the function of the vascular cambium?
Lateral conduction and food storage
What is the function of Vascular cambium in plants?
Producing 2 degree vascular tissues for support and conduction
Which type of tissue has cells with pliable walls and may remain alive for a long time?
Parenchyma
What is the main function of Collenchyma tissue in plants?
Providing flexible support in herbaceous plants
Which type of tissue has cells that are dead at maturity and function in support?
Sclerenchyma
Where are Sclereids (Stone cells) commonly found in plants?
In pears and stone fruit pits
What do Intercalary Meristems possess that is absent in Lateral Meristems?
Parenchyma tissue
What is the main function of the cuticle on the epidermis of plants?
To prevent water loss by evaporation
What is the primary role of root hairs in plants?
To increase the absorptive area of the root surface
What is the role of the guard cells in plant leaves?
To control the opening and closing of stomata
Which of the following is not a function of the periderm in plants?
To allow for photosynthesis
What is the primary function of lenticels in the periderm?
To allow for gaseous exchange
What type of cells are found in the epidermis of plants?
Parenchyma cells, guard cells, secretory glands, and hairs
Xylem is the conducting tissue for water and minerals absorbed by the roots.
True
Phloem is composed of vessel elements, companion cells, fibers, and parenchyma cells.
True
Tracheids have thick secondary cell walls and are alive at maturity.
False
Sieve tube members in phloem have secondary cell walls and nuclei.
False
The vascular cambium in herbaceous dicotyledonous stems is responsible for lateral conduction and food storage.
True
Vessel elements in xylem are long tubes made of individual vessel elements with open ends.
True
Apical Meristems are permanent regions of growth that do not undergo active cell division.
False
The region of cell elongation in a root is responsible for increasing the length of the root.
True
Vascular Bundles in plants are responsible for transporting water and minerals only.
False
The Root Cap is primarily made up of sclerenchyma cells that protect the root tip.
False
Ground Tissue in plants is responsible for photosynthesis and food storage.
True
Procambium gives rise to primary xylem and secondary phloem in plants.
False
Vascular cambium produces 1 degree vascular tissues.
False
Cork cambium is located outside the vascular cambium.
True
Parenchyma cells have thick, rigid walls.
False
Collenchyma tissue provides flexible support in herbaceous plants.
True
Sclerenchyma cells are dead at maturity and function in support.
True
Xylem is composed of two or more kinds of cells.
False
The epidermis of a plant is composed of only one cell layer.
True
The cuticle on the epidermis of plants is composed of a waxy substance called cutin.
True
Root hairs are produced by the epidermal cells of the leaves.
False
The periderm, which replaces the epidermis, is composed of cork cells, cork cambium, and cork parenchyma.
True
Lenticels are pockets of densely packed parenchyma cells that protrude through the surface of the periderm.
False
Secretory cells in the epidermis can function individually or as part of a secretory tissue, producing substances like flower nectar and citrus oils.
True
What is the primary function of the root cap?
The primary function of the root cap is to protect the tissues of the root tip from damage as the root grows through the soil.
What is the role of the apical meristem in plant growth?
The apical meristem is responsible for primary growth, producing new cells that increase the length of the root and shoot.
What are the three meristematic regions within the root tip?
The three meristematic regions within the root tip are the protoderm, ground meristem, and procambium.
What is the primary function of the vascular cambium in plants?
The primary function of the vascular cambium is to produce secondary vascular tissues, including secondary xylem and secondary phloem.
What is the main function of the phloem tissue in plants?
The primary function of phloem tissue is to transport food (organic nutrients) produced during photosynthesis from the leaves to other parts of the plant.
What is the main function of the collenchyma tissue in plants?
The primary function of collenchyma tissue is to provide flexible support in herbaceous (non-woody) plant organs.
What is the primary function of the vascular cambium in herbaceous dicotyledonous stems?
The vascular cambium in herbaceous dicotyledonous stems is responsible for lateral conduction and food storage.
What is the primary role of vessel elements in the xylem tissue?
The primary function of vessel elements is to conduct water and minerals absorbed by the roots.
What is the main function of the ground tissue system in a plant?
The main function of ground tissue in a plant is photosynthesis and food storage.
What is the role of the guard cells in plant leaves?
The guard cells in plant leaves regulate the opening and closing of stomata, which allows for gas exchange.
What is the primary function of the apical meristems in plants?
The main function of the apical meristems is to facilitate primary growth and the elongation of plant organs.
Which type of plant tissue has cells that are dead at maturity and function in support?
Sclerenchyma tissue is composed of cells that are dead at maturity and function in support.
What is the primary function of parenchyma cells?
Parenchyma cells are multipurpose cells that perform functions like photosynthesis, storage, and secretion.
What is the role of vascular cambium?
Vascular cambium produces secondary vascular tissues that function in support and conduction.
Which tissue provides flexible support in herbaceous plants?
Collenchyma tissue provides flexible support in herbaceous plants.
Where are sclereids commonly found?
Sclereids (stone cells) are commonly found in pears, stone fruit pits, and nut shells.
What is the primary function of xylem tissue?
Xylem is the conducting tissue for water and minerals absorbed by the roots.
What is the role of intercalary meristems in grasses?
Grasses possess intercalary meristems, which allow for growth in length, as they lack vascular cambium.
What is the primary function of the cuticle on the epidermis of plants?
To prevent water loss by evaporation and provide bacterial and fungal resistance.
What are the main components of the periderm tissue?
Cork cells (phellem), cork cambium (phellogen), and cork parenchyma (phelloderm).
What is the role of root hairs?
To increase the absorptive surface area of roots.
What is the function of lenticels?
To allow gaseous exchange through the periderm.
What are the main types of cells found in the epidermis?
Parenchyma cells, guard cells of stomata, and secretory cells.
What substances can secretory cells in the epidermis produce?
Flower nectar, citrus oils, glandular hair mucilage, latex, and resins.
Match the following types of simple tissues with their characteristics:
Parenchyma = Most common cell and tissue type Collenchyma = Long lived, with living cytoplasm Sclerenchyma = Thick, tough, secondary walls impregnated with lignin Aerenchyma = Have extensive connected air spaces, usually in aquatic plants
Match the following types of parenchyma tissue with their functions:
Chlorenchyma = Containing chloroplasts Transfer Cells = Develop irregular extensions of inner wall that greatly increase surface area of plasma membrane Nectaries of flowers = Containing nectar for pollinators Storage Parenchyma = Storing nutrients and reserves
Match the following complex tissues with their components:
Xylem = Composed of tracheids and vessel elements Phloem = Composed of sieve tube members and companion cells Sclereids = Scattered in tissue, giving hardness to fruit pits Fibers = Longer cells providing structural support
Match the following meristems with their location and function:
Vascular Cambium = Located inside stems and roots, producing secondary vascular tissues for support and conduction Cork Cambium = Lies outside vascular cambium, producing cells for outer bark protection Apical Meristems = Located at root and stem tips, responsible for primary growth in length Intercalary Meristems = Located in grasses, enabling regrowth after grazing or mowing
Match the following regions of maturation with their functions:
Lateral Meristems = Produce secondary tissues increasing girth of roots and stems Ground Tissues = Consist of parenchyma cells with various functions like photosynthesis and storage Vascular Tissue Xylem = Conducts water and minerals absorbed by roots Vascular Tissue Phloem = Transports organic nutrients throughout the plant
Match the following types of simple tissues with their primary function:
Parenchyma Tissue = Multipurpose cells involved in photosynthesis, storage, and secretion Collenchyma Tissue = Providing flexible support in herbaceous plants Sclerenchyma Cells = Dead at maturity but function in structural support Aerenchyma Cells = Creating air spaces to aid in buoyancy in aquatic plants
Match the following plant tissue components with their primary functions:
Epidermis = Protection Parenchyma = Photosynthesis Collenchyma = Support and structure Vascular Bundles = Transport water and minerals
Match the following root regions with their functions:
Root Cap = Protect tissues from damage as root grows Region of cell division = Composed of apical meristem in the center of root tip Region of cell elongation = Responsible for increasing the length of the root Procambium = Gives rise to primary xylem and primary phloem
Match the following plant meristems with their locations:
Apical Meristems = At tips of roots and shoots Primary Meristems = Develop from apical meristem Protoderm = Gives rise to epidermis Ground meristem = Gives rise to cortex and pith
Match the following vascular tissue components with their functions:
Xylem tissue = Transport water and minerals Phloem Tissue = Transport Food Root hairs = Absorb water and minerals from the soil Lenticels = Allow gas exchange in woody stems
Match the following regions within a plant organ with their characteristics:
Dermal Tissue = Includes epidermis and periderm for protection and prevention of water loss Ground Tissue = Contains parenchyma, collenchyma, and sclerenchyma for support, structure, and photosynthesis Vascular Tissue = Consists of vascular bundles responsible for transporting water, minerals, and food Meristems = Permanent regions of growth with active cell division for producing new cells
Match the following functions with the corresponding plant tissue components:
Regeneration = Parenchyma cells in ground tissue Food storage = Parenchyma cells in xylem tissue Styling web pages = CSS in dermal tissue Client-side scripting for web applications = JavaScript in vascular tissue
Match the following types of cells with their characteristics:
Parenchyma cells = Have thin cell walls and are alive at maturity Fibers = Long, slender cells that provide structural support Vessels = Long tubes made of vessel elements with thick secondary cell walls Tracheids = Cells with tapered ends and thick secondary cell walls
Match the following components of xylem with their descriptions:
Ray cells = Responsible for lateral conduction and food storage Vessels = Long tubes made of vessel elements with open ends Tracheids = Cells with pairs of pits allowing water passage and thick secondary walls Vascular cambium = Arises between primary xylem and primary phloem
Match the following statements with the correct descriptions of phloem components:
Sieve tube members = Lack secondary cell walls and form sieve tubes end to end Companion cells = Aid in conduction of food materials in phloem Fibers = Provide structural support in phloem tissue Parenchyma cells = Involved in conducting dissolved food materials throughout the plant
Match the following tissue patterns in stems with their characteristics:
Herbaceous Dicotyledonous Stems = Have discrete vascular bundles arranged in cylinders Vascular cambium = Function in lateral conduction and food storage Ground Tissue = Responsible for photosynthesis and food storage in stems Vascular Tissue = Contains xylem vessels and phloem sieve tube members
Match the following functions with the correct descriptions of plant tissues:
Xylem = Conducts water and minerals absorbed by roots Phloem = Conducts dissolved food materials produced by photosynthesis throughout the plant Vascular cambium = Responsible for lateral conduction and food storage in stems Ground Tissue = Functions in photosynthesis and food storage in plant organs
Match the following characteristics with their corresponding tissue types:
Dead at maturity and have thick secondary cell walls = Tracheids Provide flexible support in herbaceous plants = Collenchyma tissue Lack secondary cell walls and nuclei, form sieve tubes = Sieve tube members in phloem Cells with pliable walls that may remain alive for a long time = Parenchyma cells
Match the following plant tissues with their primary functions:
Epidermis = Protective layer covering plant organs Periderm = Replaces epidermis when cork cambium begins producing new tissue Secretory Cells = Produce flower nectar and citrus oils Lenticels = Loosely arranged pockets of parenchyma cells allowing for gaseous exchange
Match the following components with the correct description:
Cutin = Fatty substance on the surface of epidermis walls forming waxy cuticle Cork Cambium = Produces new tissue to replace epidermis in periderm Guard Cells = Board stomata and control gas exchange in leaves Root Hairs = Produced by root epidermal cells to increase absorptive area
Match the following substances with their sources in the plant tissues:
Wax = Secreted on the cuticle of the epidermis Mucilage = Produced by glandular hair secretory cells Latex = Produced by secretory cells in the epidermis Resins = Produced by secretory cells in the periderm
Match the following plant parts with their characteristics:
Leaves = Have stomata boarded by pairs of guard cells Roots = Root epidermal cells produce root hairs for increased absorptive area Periderm = Constitutes outer bark and primarily composed of cork cells and cork cambium Lenticels = Allow for gaseous exchange and common on fruit trees
Match the following plant tissues with their specific components:
Parenchyma Cells = Compose most of the epidermis and lenticels Guard Cells = Paires to board stomata in leaves Cork Cells (Phellem) = Primarily compose periderm as outer bark Cork Parenchyma (Phelloderm) = Part of the periderm along with cork cambium
Match the following substances with their functions in plant tissues:
Flower Nectar = Produced by secretory cells in the epidermis or periderm Citrus Oils = Secreted by glandular hair mucilage or secretory cells in the epidermis Glandular Hair Mucilage = Produces sticky substance for protection or attraction purposes Resins = Secreted to provide protection against pathogens or environmental stress
Explore the concept of organs and tissues in biology, focusing on roots, stems, leaves, and flowers. Learn about the composition of organs, which are made up of groups of cells performing similar functions. Dive into the role of meristems in the growth and development of plants.
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