Carbon n shit

Question 1

Rubisco

Answer 1

Ribulose-1,5-bisphosphate carboxylase/oxygenase
Activator CO2 reacts with NH2
Mg2+ attaches to CO2 = activated
Inhibited by sugar phosphates
-Rubisco-activase removes sugar phosphate

Question 2

3 organelles in photorespiration

Answer 2

Chloroplast
Peroxisome
Mitochondrion

Question 3

Chloroplast

Answer 3

Receives: glycerate, 2-oxoglutarate
Releases: glutamate and glycolate

Question 4

Peroxisome

Answer 4

Receives from chloroplast: glycolate and glutamate
Releases to chloroplast: 2-oxoglutarate, glycerate

Releases to mitochondrion: glycine
Receives from mitochondrion: Serine

Question 5

Mitochondrion

Answer 5

Receives from peroxisome: glycine
Releases to peroxisome: serine

Releases to chloroplast: NH4+

Question 6

2 transamination reactions

Answer 6

Glyoxylate to glycine

Serine to hydroxypyruvate

Question 7

Photorespiration functions

Answer 7

C1 metabolism
Nitrogen metabolism
Cell redox homeostasis
Expression of transcription factors

Question 8

Sucrose synthesis

Answer 8

In cystosol
From hexose phosphate pool
Needs UTP
Inhibited by phosphate (phosphatase inhibited)
Stimulated by G6P