Chapter 03: Adaptations to Light, Energy, and Heat

Question 0

What wavelengths are most involved in photosynthesis?

Answer 0

Red and violet

Question 1

What is the primary energy source for the biosphere?

Answer 1

Light from the sun

Question 2

What flows in/out of open stomata?

Answer 2

Water out (via transpiration), CO2 in (via atm. pressure)

Question 3

What type of photosynthesis occurs in a plant with spongy mesophyll?

Answer 3

C3 photosynthesis

Question 4

What type of photosynthesis takes place in a plant without spongy mesophyll?

Answer 4

C4 and CAM photosynthesis

Question 5

Bundle sheath cells (have/lack) chloroplasts in C3 photosynthesis.

Answer 5

Bundle sheath cells lack chloroplasts in C3 photosynthesis.

Question 6

Bundle sheath cells (lack/have) chloroplasts in C4 and CAM photosynthesis.

Answer 6

Bundle sheath cells have chloroplasts in C3 and CAM photosynthesis.

Question 7

What is housed in spongy mesophyll in plant leaves?

Answer 7

Water vapor and CO2

Question 8

In C3 photosynthesis: CO2 + _____ –> ______

Answer 8

C3: CO2 + RuBP –> (2) 3PG

Question 9

What is 3PG?

Answer 9

Phosphoglycerate, a 3-carbon compound.

Question 10

What is RuBP?

Answer 10

Ribulose biphosphate (“rubisco”), a 5-carbon compound.

Question 11

C3: as temperature increases, what happens to [CO2] and [O2]?

Answer 11

Increase T –> decrease [CO2], increase [O2]