Other Photo Systems

Question 1

roperties of the carboxylase reaction are especially important:

Answer 1

e negative change in free energy associated with the carboxylation of ribulose-1,5-bisphosphate is large; thus the forward reaction is strongly favored.

The affinity of rubisco for CO2 is sufficiently high to ensure rapid carboxylation at the low concentrations of CO2 found in photosynthetic cells.

Question 2

pentose phosphate pathway

Answer 2

Calvin-Benson Cycle

Question 3

Calvin-Benson Cycle proponents

Answer 3

Melvin Calvin

James Bassham

Andrew Benson

Question 4

What is the first actual sugar that is produced in the Calvin-Benson cycle?

Answer 4

3-phosphoglycerate (3-PGA)

Question 5

Order of Calvin-Benson cycle (7)

6

12

12

12

2

10

6

Answer 5

6 | CO2 + RUBISCO

12 | 3-Phosphoglycerate + 12 ATP

12 | 1,3 - Bisphosphoglycerate + 12 NADPH

12 | Glyceraldehyde - 3 - Phosphate

2 | Glyceraldehyde - 3 - Phosphate

__________

10 | Glyceraldehyde - 3 - Phosphate + 6 ATP

6 | Ribulose - 1,5 - biphosphate

Question 6

___ Have a Reaction Center Similar to That of Photosystem II

Example is ____

Answer 6

Anoxygenic Photosynthetic Bacteria

Rhodobacter

Question 7

eaves have two forms of chloroplasts. In the bundle sheath

cells surrounding the veins, there are large chloroplasts, often

with few to no grana

Answer 7

Kranz anatomy

Question 8

C3 plants regulate the ____ of their leaves during the day, and stomata close during the night.

C4 and CAM plants utilize ____ to fix CO2, and they separate that enzyme from rubisco either spatially (C4 plants) or temporally (CAM plants).

C3 and C4 plants photosynthesize all day,

whereas CAM plants may stop before noon

Answer 8

stomatal aperture

PEP carboxylase