8.2 Photosynthesis Structures and Functions

Which plant organ performs photosynthesis?

• leaf

• root

Which plant organ absorbs water?

• leaf

• root

What does the stem do? (choose 2)

• takes water up to leaves

• takes sugar down to roots

• turns water into sugar

• turns carbon dioxide into oxygen

Which plant organ has stomata?

• leaf

• roots

Look carefully at the diagram. What do stomata do? (find all three answers)

• let carbon dioxide in the leaf

• let water out of the leaf

• let oxygen out of the leaf

• get sugar out of the leaf

Label the parts of the chloroplast.

a

b

c

d

e

f

thylakoid

granum

stroma (space)

intermembrane space

outer membrane

inner membrane

Label the missing inputs and outputs of photosynthesis.

(Diagram = Chloroplast)

c

d

b

a

O2

H2O

CO2

C6H12O6 (sugars)

Which way does the ADP / ATP cycle go?

b

a

ADP

ATP

In chloroplasts, Light Dependent reactions take place in the ​ (a)   membrane.

• thylakoid
• cell

In chloroplasts, Light Independent reactions take place in the ​ (a)   space.

• stroma
• intermembrane