radicaldadical9924 radicaldadical9924

02-04-2020
Chemistry

contestada

During photorespiration, the phosphoglycolate (PGO) produced by RuBP oxygenation is eventually converted to phosphoglycerate (PGA); 75% of the carbon in PGO is recovered. How many molecules of PGO are required to generate two molecules of PGA through this route

Respuesta :

ranichoubey506 ranichoubey506

03-04-2020

Answer:

4

Explanation:

1. Photorespiration occurs in plants and it is a wasteful pathway, it competes with the Calvin cycle. It begins when rubisco (Ribulose-1,5-bisphosphate carboxylase/oxygenase (RUBISCO) catalyzes both CO2 and O2 fixation) acts on O₂ instead of CO₂.

2. Photorespiration is initiated by the oxygenase activity of rubisco, the same enzyme that is also responsible for CO2 fixation.

3. Phosphoglycolate formed by O₂ fixation is recycled to the Calvin cycle intermediate phosphoglycerate in the photorespiratory pathway.

4. During oxygen fixation,1 molecule of PGA and 1 molecule of 2-phosphoglycolate are formed. The 2-phosphoglycolate is converted back to PGA in the photorespiratory cycle.

Answer Link

Otras preguntas

Using fermat's little theorem, find the least positive residue of $2^{1000000}$ modulo 17.

Student in ms sawyers class built balloon cars the balloon car works this way as the gas in the balloon is released the car moves in the opposite direction the

Points P(6, –8) and Q(–18, 2) are plotted on the coordinate plane. Enter the distance, in units, between points P and Q.

As Earth spins on its axis, producing night and day, it also moves about the Sun in an elliptical orbit that requires about 365 1/4 days to complete. The Earth'

Which stage of photosynthesis requires water to complete the chemical reaction?

Ever since his mother began to give julio gold stars for keeping his bed dry all night, julio discontinued his habit of bed-wetting. his change in behavior best

Which description most clearly defines tone in literature?

Experience with unavoidable negative stimuli can lead to a particular deficit in avoidance learning called _____. observational learning instinctive drift learn

The area of a rectangle is 77ft^2 , and the length of the rectangle is 3ft more than twice the width. What are the dimensions of the rectangle ?

Que se significa consenso