Rubisco

Question 1

What is rubisco

Answer 1

A very slow enzyme (though there is lots)

Question 2

What is the problem with rubisco

Answer 2

Very slow
Will bind to oxygen if CO2 concentration decreases or if O2 increases

When it binds with oxygen, creates a useless molecule for cell

Recovery long, takes ATP and produces CO2

Question 3

What is the opposite of what rubisco is supposed to do

Answer 3

Bond with oxygen and create CO2

Question 4

Is photorespiration good or bad

Answer 4

Bad

Waste of cell resources

Question 5

C4 plants have two types of photosynthetic cells. What are they

Answer 5

Bundle-sheath cells surrounding a vein (where Calvin cycle occurs)

Mesophyll cells around the bundle-sheath cells (barrier for oxygen)

Question 6

Give an example of C4 plants

Answer 6

Sugar cane, corn

Question 7

What is the strategy of C4 plants

Answer 7

To keep CO2 high to compete with photorespiration (outcompete oxygen)

Question 8

CAM plants do the opposite of regular plants. What is the difference

Answer 8

Open stomata at night and close them during day

Question 9

What happens to CO2 in CAM plants during night

Answer 9

CO2 is converted to 4c, stored in vacuole before releasing CO2 throughout the day

Helps conserve water but prevents CO2 from entering leaves throughout day