11.3 light independent photosynthesis

Question 1

where does the Calvin cycle take place

Answer 1

the stroma of the chloroplasts

Question 2

light independent reaction

Answer 2

uses the products of the light dependent reaction ATP and reduced NADP to make organic substances

Question 3

three main stages of Calvin cycle

Answer 3

• formation of G3P
• formation of TP
  -regeneration of RUBP

Question 4

formation of G3P

Answer 4

-co2 enters the leaf through the stomata and diffuses into the stroma of the chloroplast
-co2 combined with RUBP to give an unstable compound which quickly breaks down into 3GP

Question 5

RuBP

Answer 5

ribulose bisphosphate

Question 6

what catalyses the reaction between co2 and RuBP

Answer 6

rubisco

Question 7

GP

Answer 7

glycerate 3 phosphate

Question 8

formation of GP

Answer 8

-G3P is reduced to TP. energy for this is provided by ATP and H+ ions from reduced NADP
-NADPH recycled to NADP
-TP then converted to organic compounds i.e glucose

Question 9

how many turns of the Calvin cycle to make one hexose sugar

Answer 9

6