Question 1

What is the function of the stomata in vascular plants?

Accepted Answer

The stomata control the entrance and exit of gases.

Answer

The stomata take food into and out of the plant.

Answer

The stomata deliver all of the water.

Answer

The stomata transfer gases all around the plant.

Question 2

What structure controls the opening and closing of the stomata?

Accepted Answer

guard cells

Answer

root hairs

Answer

xylem

Answer

mitochondria

Question 3

Which of the following  lists transpiration in the correct order?

Accepted Answer

water enters through the roots, moves into the xylem getting carried into all parts of the plant, exits through the stomata.

Answer

water enters through the stomata, gets carried through the phloem to the roots, exits the root hair.

Answer

water enters the root hairs, gets sucked into the xylem, hangs out in the plant for 10 days, leaves the guard cells.

Answer

water enters the guard cells, which transfers the water to the stomata, eventually leaving the cell through the guard cells.

Question 4

Why is transpiration an important function for plants?

Accepted Answer

It allows water to move to all parts of the plant.

Answer

It is a function of photosynthesis.

Answer

It gets rid of the waste products in the plant.

Answer

It stops water from leaving the plant.

Question 5

Why does condensation form in a plastic bag tied around a plant?

Accepted Answer

The condensation comes from the water leaving the stomata.

Answer

The condensation was in the bag before the bag was tied to the plant.

Answer

The condensation is not there, it just looks that way.

Answer

The condensation is actually outside the bag.

Question 6

Photosynthesis and cellular respiration happen in what kinds of cells?

Accepted Answer

Photosynthesis happens  in plant cells; cellular respiration happens in animal and plant cells.

Answer

Photosynthesis and cellular respiration happen only in plant cells.

Answer

Photosynthesis and cellular respiration do not happen in either animal or plant cells.

Answer

Photosynthesis and cellular respiration happen in both animal and plant cells.

Question 7

How do plant cells without chlorophyll get their food?

Accepted Answer

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

Answer

Xylem carries food around the plant.

Answer

Plant cells do not require food.

Answer

Every plant cell has chlorophyll.

Question 8

Celery left in a vial of red water is red in the morning. Why?

Accepted Answer

The celery goes through transpiration, pulling the water into the celery.

Answer

The celery cannot turn to the color red.

Answer

There was red dye put on the celery.

Answer

The celery went bad overnight.

Question 9

The stem and leaves in a plant are examples of plant ...

Accepted Answer

organs

Answer

cells

Answer

tissues

Answer

molecules

Question 10

Photosynthesis allows plants to make glucose. What must happen for the glucose to be usable by the plant?

Accepted Answer

The glucose combines with oxygen.

Answer

The glucose is readily usable.

Answer

The glucose combines with carbon dioxide.

Answer

The glucose pairs with more glucose before being usable.

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