Embedded Files
What You Need to Know......
Items will assess the function of plant tissues and organs in the context of physiological processes.
Items will not assess specific functions of structures within organs and tissues in isolation.
Items assessing plant organs are limited to roots, stems, leaves, flowers, fruits, and cones.
Items referring to physiological processes are limited to photosynthesis, cellular respiration, transpiration, growth, and reproduction.
Items assessing plant tissues are limited to meristematic, ground, dermal, and vascular tissues.
Items referring to plant structures are limited to cambium, guard cells, phloem, root hairs, root cap, seed, stomata, xylem, stamen, pistil, ovary, petals, sperm, egg, sepal, filament, anther, style, and stigma.
Example Question
Terrestrial plants have stomata on the surface of their leaves. A single stoma is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma. Which of the following best explains how the structure of the leaf is used in processes that occur in the plant?
A. Water enters the plant through the surface of the leaf for transpiration.
B. Gases for photosynthesis are exchanged through the surface of the leaf.
C. Energy for cellular reproduction is absorbed through the surface of the leaf.
D. Carbon dioxide enters the plant through the surface of the leaf for cellular respiration.
2. Which type of plant tissue protects a plant from water loss?
A. Ground tissue
B. Dermal tissue
C. Vascular tissue
D. Nonvascular tissue
3. Transpiration is greater for
A. Small leaved plants
B. Flowering plants
C. Large leaved plants
D. Tall plants
4. Which of the following correctly compares two of the divisions of the plant kingdom?
A. Gymnosperms and angiosperms both reproduce sexually, but gymnosperms produce flowers
or fruit, and angiosperms produce pollen cones and seed cones.
B. Nonvascular plants lack xylem and phloem and reproduce asexually, while angiosperms have
xylem and phloem and reproduce sexually.
C. Seedless vascular plants and gymnosperms both reproduce asexually, but seedless vascular
plants contain xylem, and gymnosperms contain xylem and phloem.
D. Seedless vascular plants and nonvascular plants both contain xylem and phloem, but seedless
vascular plants reproduce asexually, and nonvascular plants reproduce sexually.
5. Plant cells that are specialized for cell division are most likely found in what part of the plant?
A. root tips
B. leaf epidermis
C. stem epidermis
D. vascular tissue
6. If the xylem in a young tree is damaged, which process is first affected?
A. performing photosynthesis
B. transporting sugar to the roots
C. transporting water to the leaves
D. absorbing water from the soil
7. Which statement describes the role of flowers in plant survival?
A. Flowers can absorb carbon dioxide for sugar production.
B. Flowers produce oxygen through cellular respiration.
C. Flowers contain cells that carry out photosynthesis.
D. Flowers contain cells that produce gametes.
8. Which structure is represented by the letter A in the diagram above?
A. the stamen, a male structure which produces pollen
B. the pistol, a female structure which collects pollen and passes it to the ovary
C. the sepal, a modified leaf used for protection of the flower
D. the petals, decorative structures which attract pollinators
Answer Key:
1. B. Gases for photosynthesis are exchanged through the surface of the leaf
2. B. Dermal Tissue
3. C. Large leaved plants; these will have more stomata, which is used for gas exchange (Transpiration)
4. B. Nonvascular plants lack xylem and phloem and reproduce asexually, while angiosperms have
xylem and phloem and reproduce sexually.
5. A. root tips As plant roots grow, the cells in their tips undergo constant mitosis to produce new tissue.
6. D. absorbing water from the soil Xylem carries water and nutrients from the soil, up into the leaves. The water is used to carry out photosynthesis, the products of which are sugar and oxygen.
7. D. Flowers contain cells that produce gametes. Flowers are the reproductive organs of plants.
8. B. the pistol, a female structure which collects pollen and passes it to the ovary The pistol is made of several carpals fused together. The tip of the pistol is usually sticky and holds pollen grains when they land there. The style is a tube that leads from the stigma to the ovary, where fertilization occurs to form the zygote.
Page updated
Report abuse