Plant Cells and Tissues
Q. What is the function of collenchyma cells?
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A.
Transport water
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B.
Provide flexible support
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C.
Store nutrients
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D.
Conduct photosynthesis
Solution
Collenchyma cells provide flexible support to young stems and leaves.
Correct Answer: B — Provide flexible support
Q. What is the main characteristic of sclerenchyma cells?
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A.
Flexible and living at maturity
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B.
Thick, lignified cell walls and dead at maturity
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C.
Thin cell walls and living at maturity
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D.
Photosynthetic and living at maturity
Solution
Sclerenchyma cells have thick, lignified walls and are dead at maturity, providing structural support.
Correct Answer: B — Thick, lignified cell walls and dead at maturity
Q. What is the main role of phloem in plants?
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A.
Transport water
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B.
Transport nutrients
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C.
Transport sugars
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D.
Provide structural support
Solution
Phloem is responsible for the transport of sugars and other metabolic products downward from the leaves.
Correct Answer: C — Transport sugars
Q. What is the main role of sclerenchyma cells?
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A.
Transport nutrients
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B.
Provide structural support
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C.
Store carbohydrates
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D.
Conduct photosynthesis
Solution
Sclerenchyma cells provide structural support due to their thick, lignified cell walls.
Correct Answer: B — Provide structural support
Q. What is the primary function of collenchyma cells?
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A.
Transport nutrients
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B.
Provide flexible support
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C.
Store water
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D.
Conduct photosynthesis
Solution
Collenchyma cells provide flexible support to young stems and leaves, allowing for growth and movement.
Correct Answer: B — Provide flexible support
Q. What is the primary function of parenchyma cells in plants?
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A.
Transport water and nutrients
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B.
Provide structural support
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C.
Store food and nutrients
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D.
Conduct photosynthesis
Solution
Parenchyma cells primarily function in storage, as they can store starch, oils, and water.
Correct Answer: C — Store food and nutrients
Q. What is the primary function of phloem in plants?
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A.
Transport water
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B.
Transport nutrients
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C.
Transport sugars
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D.
Provide support
Solution
Phloem is responsible for the transport of sugars and other metabolic products downward from the leaves.
Correct Answer: C — Transport sugars
Q. What is the primary role of phloem in plants?
-
A.
Transport water
-
B.
Transport nutrients
-
C.
Transport sugars
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D.
Provide structural support
Solution
Phloem is primarily responsible for the transport of sugars and other metabolic products downward from the leaves.
Correct Answer: C — Transport sugars
Q. What type of cell is responsible for photosynthesis in leaves?
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A.
Sclerenchyma
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B.
Collenchyma
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C.
Chlorenchyma
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D.
Meristematic
Solution
Chlorenchyma cells, which contain chloroplasts, are specialized for photosynthesis.
Correct Answer: C — Chlorenchyma
Q. What type of cells are responsible for the flexibility of young stems?
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A.
Parenchyma
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B.
Collenchyma
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C.
Sclerenchyma
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D.
Xylem
Solution
Collenchyma cells provide flexibility and support to young stems and petioles.
Correct Answer: B — Collenchyma
Q. What type of cells are responsible for the transport of nutrients in plants?
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A.
Xylem
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B.
Phloem
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C.
Parenchyma
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D.
Collenchyma
Solution
Phloem cells are responsible for the transport of nutrients, particularly sugars, throughout the plant.
Correct Answer: B — Phloem
Q. What type of cells are specialized for water storage in succulent plants?
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A.
Collenchyma
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B.
Sclerenchyma
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C.
Parenchyma
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D.
Epidermal cells
Solution
Parenchyma cells in succulent plants are specialized for water storage due to their large vacuoles.
Correct Answer: C — Parenchyma
Q. What type of cells make up the outer protective layer of a plant?
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A.
Parenchyma
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B.
Collenchyma
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C.
Sclerenchyma
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D.
Epidermal cells
Solution
Epidermal cells form the outer protective layer of the plant, serving as a barrier against environmental damage.
Correct Answer: D — Epidermal cells
Q. What type of tissue forms the outer protective layer of a plant?
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A.
Vascular tissue
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B.
Ground tissue
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C.
Dermal tissue
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D.
Meristematic tissue
Solution
Dermal tissue forms the outer protective layer of the plant, including the epidermis.
Correct Answer: C — Dermal tissue
Q. Which of the following is a characteristic of sclerenchyma cells?
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A.
Living at maturity
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B.
Thick secondary walls
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C.
Flexible structure
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D.
Photosynthetic
Solution
Sclerenchyma cells have thick secondary walls and are typically dead at maturity, providing structural support.
Correct Answer: B — Thick secondary walls
Q. Which plant tissue is primarily involved in the transport of nutrients and photosynthates?
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A.
Xylem
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B.
Phloem
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C.
Cortex
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D.
Sclerenchyma
Solution
Phloem is primarily involved in the transport of nutrients and photosynthates throughout the plant.
Correct Answer: B — Phloem
Q. Which type of meristem is responsible for the increase in length of roots and shoots?
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A.
Lateral meristem
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B.
Apical meristem
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C.
Intercalary meristem
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D.
Cork cambium
Solution
Apical meristem is responsible for the primary growth, leading to an increase in length of roots and shoots.
Correct Answer: B — Apical meristem
Q. Which type of plant tissue is primarily involved in the healing of wounds?
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A.
Parenchyma
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B.
Collenchyma
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C.
Meristematic tissue
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D.
Sclerenchyma
Solution
Meristematic tissue is involved in the healing of wounds as it contains undifferentiated cells that can divide and differentiate.
Correct Answer: C — Meristematic tissue
Q. Which type of plant tissue is responsible for secondary growth?
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A.
Apical meristem
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B.
Lateral meristem
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C.
Ground tissue
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D.
Epidermal tissue
Solution
Lateral meristem is responsible for secondary growth, which increases the thickness of stems and roots.
Correct Answer: B — Lateral meristem
Q. Which type of plant tissue is responsible for the transport of water?
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A.
Phloem
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B.
Xylem
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C.
Cortex
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D.
Epidermis
Solution
Xylem is the tissue responsible for the transport of water and dissolved minerals from the roots to the rest of the plant.
Correct Answer: B — Xylem
Q. Which type of tissue is primarily involved in photosynthesis?
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A.
Meristematic tissue
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B.
Ground tissue
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C.
Vascular tissue
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D.
Dermal tissue
Solution
Ground tissue, particularly parenchyma cells containing chloroplasts, is primarily involved in photosynthesis.
Correct Answer: B — Ground tissue
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