I5 SG

Question 1

The function of stomata in a vascular plant is:

a. transfer gases to all the cells in a leaf
b. control the entrance and exit of gases in the plant

Answer 1

b. control the entrance and exit of gases in the plant

Question 2

_______ cells control the size of the openings in leaves.

a. guard cells
b. xylem

Answer 2

a. guard cells

Question 3

Transpiration is an important process in a plant because it:

a. is part of photosynthesis
b. delivers water to every cell in the plant

Answer 3

b. delivers water to every cell in the plant

Question 4

If you place a plastic bag over a branch of a tree that has leaves during a drought (a time with very little or no rain), would you expect to see a lot of water or just a little condensing in the bag? Explain why you think so.

a. I would expect to see a lot of water
b. I would expect to see a little amount of water

Answer 4

b. I would expect to see a little amount of water

Question 5

Which of the following statements is true?

a. Photosynthesis occurs in both plants and animals.
b. Photosynthesis occurs only in plants, and cellular respiration occurs in both plants and animals.

Answer 5

b. Photosynthesis occurs only in plants, and cellular respiration occurs in both plants and animals.

Question 6

How do plant cells that do not have chlorophyll get food?

a. Phloem carries food from the leaves to all the cells in a plant.
b. Xylem carries food from the leaves to all the cells in a plant.

Answer 6

a. Phloem carries food from the leaves to all the cells in a plant.

Question 7

A student left a piece of celery in a vial overnight. The water level decreased. List all of the factors that might have contributed to the decrease (pick 3):

• evaporation
• transpiration
• condensation
• spilling
• leaking
• Mr. Hardesty drank it

Answer 7

• evaporation
• transpiration
• spilling

Question 8

The stems and leaves in a plant are examples of plant _____.

a. organs
b. organ systems

Answer 8

a. organs

Question 9

Photosynthesis uses energy from the Sun to make sugars such as glucose. What has to happen to the glucose before it can be used by plant cells?

a. The glucose combines with another sugar to make usable energy
b. The glucose combines with oxygen to make usable energy

Answer 9

b. The glucose combines with oxygen to make usable energy