Chapter 17. 17·4–17·7 Most plants have common structural features.

Show What You Know - Self Quiz

true

You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Check your understanding of concepts from 17·4–17·7 Most plants have common structural features by answering the following questions.

1.

1. Which of the following is INCORRECT about roots?

Taproots tend to grow deep while fibrous roots are shallower.

Roots contain a vascular tissue called pith.

The role of root hairs is largely to store excess energy.

All of the above are incorrect.

B and C are both incorrect.

Correct. (See section 17·4 Roots anchor the plant and take up water and minerals.)

Incorrect. (See section 17·4 Roots anchor the plant and take up water and minerals.)

2.

2. Which of the following is INCORRECT in completing the phrase: “Stems ________.”

are the major site of photosynthesis

keep the plant upright

serve as a plant’s backbone

hold leaves in position

house the plant’s circulatory infrastructure

Correct. (See section 17·5 Stems are the backbone of the plant.)

Incorrect. (See section 17·5 Stems are the backbone of the plant.)

3.

3. Which of the following correctly describes a difference in stem anatomy between monocots and eudicots?

Eudicots have pith in the center or core while monocots have phloem in the center.

Monocots have vascular bundles distributed randomly through the stem.

Monocots have vascular bundles arranged in well-ordered concentric rings around the pith.

Monocots have xylem and phloem but eudicots have only phloem.

Eudicots have a large xylem vessel at their core with bundles of phloem distributed in a ring around the core.

Correct. (See section 17·5 Stems are the backbone of the plant.)

Incorrect. (See section 17·5 Stems are the backbone of the plant.)

4.

4. The greatest amount of photosynthesis in a plant can be found in:

spongy mesophyll cells.

collenchyma cells.

sclerenchyma cells.

guard cells.

palisade mesophyll cells.

Correct. (See section 17·6 Leaves feed the plants.)

Incorrect. (See section 17·6 Leaves feed the plants.)

5.

5. Which of the following is NOT an adaptation in plants to reduce water loss?

a waxy substance on the surface of leaves

openings in leaves that restrict water loss while providing for gas exchange

leaf shapes that facilitate air movement over the surface of leaves

stomata mostly on the shady side of leaves

hairs on the surface of leaves

Correct. (See section 17·7 Several structures help plants resist water loss.)

Incorrect. (See section 17·7 Several structures help plants resist water loss.)

Activity results are being submitted...