Mod 4 Quiz 2: Photosynthesis

Question 1

Autotrophs/Producers

Answer 1

Organisms that complete photosynthesis
(examples: plants, algae (including seaweed), some bacteria )

Question 2

Parts of the Chloroplast

Answer 2

• Stroma
• thykaloids
• granum

Question 3

Stroma

Answer 3

• Fluid inside chloroplasts
• lots of enzymes

Question 4

Thylakoids

Answer 4

• membrane sacs
• contains chlorophyll

Question 5

Granum

Answer 5

1 stack of thykaloids

Question 6

Stomata (stoma singular)

Answer 6

-Holes on the underside of leaves
- Carbon Dioxide (CO2) goes in
- Oxygen (O2) and Water (H20) come out

Question 7

Pigment

Answer 7

Substance that absorbs some wavelengths of light and reflects others

Question 8

ADP

Answer 8

Adenosine Diphosphate (2 phosphate molecules)

Question 9

ATP

Answer 9

Adenosine Triphosphate (3 phosphate molecules)

Question 10

Proton Gradient

Answer 10

concentration gradient involving H+ across a membrane

Question 11

ATP Synthase

Answer 11

Enzyme Channel Protein embedded in membrane that produces ATP when H+ flows through it (in photosynthesis, it’s in the thylakoid membrane)

Question 12

Fixation

Answer 12

Process of changing a gas into a usable for organisms (O2 , N2)

ex) plants fix O2, bacteria fix N2