Question

Question 29 Not yet answered Marked out of 1.00 P Flag question What is the role of substrate-level phosphorylation in glycolysis? Select one: a. a process to synthesize oxygen (02) b. a process to do all of the above (a, b and c) c. a process to synthesize glucose d. a process used to synthesize ATP

Answer 1

29. D

Substrate level phosphorylation is the process of formation of ATP by the phosphorylation of ADP which is coupled to some other reaction.

35. C

Complex permanent tissue in plants is made up of xylem and phloem. Xylem is meant for the transportation of water whereas phloem is meant for the transportation of sucrose.

38. A (B and C are also correct)

During electron transport chain in thylakoid membrane, electrons are transported from one electron carrier to the other. This results in the pumping of protons from thylakoid lumen into chloroplast stroma. This results in the generation of Differential concentration of protons across membrane of thylakoid and is known as Proton motive force.

The electrons are donated by water which results in the formation of Oxygen and the electrons are ultimately accepted by NADP+ which gets reduced to form NADPH. This is the reason second and third options are also correct.

41. C

Electron transport chain also takes place in inner mitochondrial membrane during cellular respiration. IT results in the transportation of electron from one electron carrier to the other. In doing so, protons are also pumped from mitochondrial Matrix into intermembrane space resulting in the formation of proton gradient.

42. D

Calvin cycle belongs to the dark reaction phase of photosynthesis. It result in the formation of Sugars. It uses ATP and NADPH produced during the light reaction. It starts with the fixation of atmospheric carbon dioxide and ends with the regeneration of ribulose bisphosphate. The regeneration is important so as to continue the cycle and to allow more synthesis of sugars.

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