Describe the process of the light-independent reaction.

Carbon dioxide diffuses into the cell leaf through the stomata, and diffuses into the water surrounding the mesophyll cell walls (main site of photosynthesis-packed with many chloroplasts). From here, the carbon dioxide then diffuses through the mesophyll cell wall and cell membranes, and through the chloroplast cell membrane into the stroma (chloroplast cyptoplasm). The carbon dioxide combines with a 5 carbon-compound RuBP (ribulose biphopshate) to produce 2 x 3 carbon compound GP (glycerate 3 phosphate). This process is catalysed by the enzyme RuBisco. Reduced NADP from the light dependent reaction is used to reduce (gain of protons) GP to TP (triose phosphate) using energy supplied by ATP. Majority of the TP is used to produce glucose, amino acids etc. However, the majority of TP is converted back into RuBP.

Answered by Davinia I. Biology tutor

4797 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

How is the cardiac cycle regulated by the heart itself?


how is an ation potential generated?


Describe the role of DNA polymerase in DNA replication


What causes the heart to contract?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences