Which of the following does not occur during the calvin cycle?
a. carbon fixation
b. oxidation of nadph
c. release of oxygen
d. regeneration of the co2 acceptor

Release of oxygen. (Ans. C)

Explanation:

Calvin cycle is the set of chemical reaction which it takes place in chloroplast during photosynthesis. It is a light-independent cycle ( where carbon fixation occurs) because it takes place after the energy has been taken from sunlight. These are the steps includes in this cycle:

1) Calvin cycle adds carbon from CO2 present in the atmosphere to a 5 carbon molecule, known as ribulose bisphosphate catches 1 molecule of carbon dioxide and form a 6 carbon molecule.

2) The enzyme RuBisCo breaks the 6 carbon molecule into two equal parts with the energy of ATP and NADPH (oxidation of NADPH) molecules.

3) One trio of carbon molecule leave and become sugar and another trio of carbon molecule move to the next steps.

4) The 3 carbon molecule changing into a 5 carbon molecule, using ATP and NADPH (oxidation of NADPH), and the cycle starts over again.

preservation because he preserves part of the land and preserves means save

explanation:

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;