Unit 3

Question 1

Organisms that must rely on sugars produced by other organisms for their energy needs are known as

Answer 1

heterotrophs

Question 2

What two products result from photosynthesis?

Answer 2

glucose and oxygen

Question 3

The fluid-filled space surrounding the grana inside a chloroplast where photosynthesis takes place is the

Answer 3

stroma

Question 4

Carbon dioxide is required during the ___________________ reactions of photosynthesis.

Answer 4

light-independent

Question 5

The power source for photosynthesis is

Answer 5

sunlight

Question 6

In chloroplasts, the chlorophyll pigment is found within the

Answer 6

thylakoid membrane.

Question 7

Stacks of thylakoid membranes in the chloroplasts are

Answer 7

Grana

Question 8

Which of these organisms can photosynthesize?
Plants
Algae
Certain protists
All of the above

Answer 8

All of the above

Question 9

One of the reactants in photosynthesis is:

Answer 9

carbon dioxide

Question 10

Which molecule absorbs the energy of a photon in photosynthesis?

Answer 10

chlorophyll

Question 11

What are the two stages of photosynthesis?

Answer 11

light-dependent reactions and the Calvin cycle

Question 12

The Calvin cycle functions to __________.

Answer 12

produce carbohydrates using energy stored by molecules that were produced in the light-dependent reactions

Question 13

ATP is able to drive an _____.

Answer 13

endergonic process by coupling that process to an exergonic process

Question 14

Stomata are used for the regulation of

Answer 14

carbon dioxide, oxygen, and water.

Question 15

In the complete photosynthetic reaction, the Calvin cycle takes in _____ and produces _____.

Answer 15

NADPH, glucose

Question 16

The middle layer of cells in a leaf is called the

Answer 16

mesophyll

Question 17

Energy associated with objects in motion is called _______ energy.

Answer 17

Kinetic