Review Questions

4. Plant regions of continuous growth are made up of ________.

  1. dermal tissue
  2. vascular tissue
  3. meristematic tissue
  4. permanent tissue

5. Which of the following is the major site of photosynthesis?

  1. apical meristem
  2. ground tissue
  3. xylem cells
  4. phloem cells

6. Stem regions at which leaves are attached are called ________.

  1. trichomes
  2. lenticels
  3. nodes
  4. internodes

7. Which of the following cell types forms most of the inside of a plant?

  1. meristem cells
  2. collenchyma cells
  3. sclerenchyma cells
  4. parenchyma cells

8. Tracheids, vessel elements, sieve-tube cells, and companion cells are components of ________.

  1. vascular tissue
  2. meristematic tissue
  3. ground tissue
  4. dermal tissue

9. The primary growth of a plant is due to the action of the ________.

  1. lateral meristem
  2. vascular cambium
  3. apical meristem
  4. cork cambium

10. Which of the following is an example of secondary growth?

  1. increase in length
  2. increase in thickness or girth
  3. increase in root hairs
  4. increase in leaf number

11. Secondary growth in stems is usually seen in ________.

  1. monocots
  2. dicots
  3. both monocots and dicots
  4. neither monocots nor dicots

12. Roots that enable a plant to grow on another plant are called ________.

  1. epiphytic roots
  2. prop roots
  3. adventitious roots
  4. aerial roots

13. The ________ forces selective uptake of minerals in the root.

  1. pericycle
  2. epidermis
  3. endodermis
  4. root cap

14. Newly-formed root cells begin to form different cell types in the ________.

  1. zone of elongation
  2. zone of maturation
  3. root meristem
  4. zone of cell division

15. The stalk of a leaf is known as the ________.

  1. petiole
  2. lamina
  3. stipule
  4. rachis

16. Leaflets are a characteristic of ________ leaves.

  1. alternate
  2. whorled
  3. compound
  4. opposite

17. Cells of the ________ contain chloroplasts.

  1. epidermis
  2. vascular tissue
  3. periderm
  4. mesophyll

18. Which of the following is most likely to be found in a desert environment?

  1. broad leaves to capture sunlight
  2. spines instead of leaves
  3. needle-like leaves
  4. wide, flat leaves that can float

19. When stomata open, what occurs?

  1. Water vapor is lost to the external environment, increasing the rate of transpiration.
  2. Water vapor is lost to the external environment, decreasing the rate of transpiration.
  3. Water vapor enters the spaces in the mesophyll, increasing the rate of transpiration.
  4. Water vapor enters the spaces in the mesophyll, decreasing the rate of transpiration.

20. Which cells are responsible for the movement of photosynthates through a plant?

  1. tracheids, vessel elements
  2. tracheids, companion cells
  3. vessel elements, companion cells
  4. sieve-tube elements, companion cells

21. The main photoreceptor that triggers phototropism is a ________.

  1. phytochrome
  2. cryptochrome
  3. phototropin
  4. carotenoid

22. Phytochrome is a plant pigment protein that:

  1. mediates plant infection
  2. promotes plant growth
  3. mediates morphological changes in response to red and far-red light
  4. inhibits plant growth

23. A mutant plant has roots that grow in all directions. Which of the following organelles would you expect to be missing in the cell?

  1. mitochondria
  2. amyloplast
  3. chloroplast
  4. nucleus

24. After buying green bananas or unripe avocadoes, they can be kept in a brown bag to ripen. The hormone released by the fruit and trapped in the bag is probably:

  1. abscisic acid
  2. cytokinin
  3. ethylene
  4. gibberellic acid

25. A decrease in the level of which hormone releases seeds from dormancy?

  1. abscisic acid
  2. cytokinin
  3. ethylene
  4. gibberellic acid

26. A seedling germinating under a stone grows at an angle away from the stone and upward. This response to touch is called ________.

  1. gravitropism
  2. thigmonasty
  3. thigmotropism
  4. skototropism

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Biology 2e for Biol 111 and Biol 112 Copyright © by Mary Ann Clark; Jung Choi; and Matthew Douglas is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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