Unit 3 - photosynthesis

Question 1

Who is green light?

Answer 1

I am the wavelength that plants reflect

Question 2

Who is oxygen?

Answer 2

I am produced in the light-dependent reactions and am

the by-product of water being split.

Question 3

Who is carbon dioxide?

Answer 3

I am used in the Calvin Cycle as a carbon source to make

G3P.

Question 4

Who is chlorophyll?

Answer 4

I am the structure that contains the thylakoids and the

stroma.

Question 5

Who is thylakoid?

Answer 5

I am the structure that absorbs light and where the light-
dependent reactions take place

Question 6

Who is stroma?

Answer 6

I am the space where the Calvin cycle (carbon fixation)

reactions occur

Question 7

Who is NADPH and ATP?

Answer 7

I am the products of the light dependent reactions

Question 8

Who is the light dependent
reactions?

Answer 8

I am the reactions that absorb light, split water, send
electrons into the ETC and power ATP synthase to create
ATP and NADPH. I also give off oxygen as a waste
product.

Question 9

Who is the light independent
reactions?

Answer 9

I am the reactions that DO NOT require light, and take in
carbon dioxide, use ATP and NADPH, and create G3P.

Question 10

Who is ADP and NADP?

Answer 10

I am the products of the Calvin Cycle and I get recycled in

the light dependent reactions to ATP and NADPH

Question 11

Who is the gas removed from the
atmosphere in photosynthesis?

Answer 11

I am CO2

Question 12

Who is the gas released to the
atmosphere in photosynthesis?

Answer 12

I am O2

Question 13

Who splits water?

Answer 13

I am the light dependent reactions

Question 14

Who “fixes” carbon?

Answer 14

I am the light independent reactions

Question 15

Who makes ATP?

Answer 15

I am ATP synthase

Question 16

which wavelengths does chlorophyll absorb?

Answer 16

Around 450 nm and 675 nm

Question 17

Which range does chlorophyll reflect?

Answer 17

From around 500nm- 600 nm (which is why leaves are green)

Question 18

What is the organelle where photosynthesis occurs?

Answer 18

Chlorophyll

Question 19

The light reactions occur in the ________ and the dark reactions take place in the ________.

Answer 19

thylakoid membrane / stroma

Question 20

What is the primary function of the light reactions of photosynthesis?

Answer 20

To produce NADPH and ATP

Question 21

What molecule does the light reactions split to get electrons for the ETC and create a molecule necessary for the Calvin cycle?

Answer 21

H20

Question 22

What waste product does the light-dependent reactions create?

Answer 22

Oxygen

Question 23

What is the function of NADPH?

Answer 23

It is an electron carrier

Question 24

Where does the carbon come from that is used to form glucose?

Answer 24

CO2 in the air

Question 25

Which of the following molecules is not needed for the Calvin Cycle?

Answer 25

H2O

Question 26

Where does the Calvin cycle take place?

Answer 26

stroma of the chloroplast