27. Where in the cell does the Kreb\'s Cycle occurthmitochondrion a. stroma of t

Question

27. Where in the cell does the Kreb's Cycle occurthmitochondrion a. stroma of the chloroplast c. cristae of the mitochondrion d. cytoplasm b. matrix of the 28. How much ATP is formed (net) by anacrobic respiration? 38 b. 3 e. 4 29. What does anaerobie mean? a. requiring oxygen c. slow b. under water d. not involving oxygen 30. What kind of plant would be expected to have a well-developed vascular bundle? 31. Cyclic photophosphorylation involves only 32. What is the first step in the Calvin Cycle? a. C3 b. CAM e. moss d. C4 a, the stroma b. PSI c. PSII d. the cristae a. the reduction of CO2 to CH2O b. the regeneration of ribulose 1,5 di-phosphate c. the carboxylation of ribulose 1,5 di-phosphate d. substrate-level phosphorylation is are) the product(s) of the initial reaction of the Calvin Cycle? c. ADP and NAD d. two 3-carbon sugars a. glucose b. CO2 34. What two chemicals are needed from the light reactions for the Calvin Cycle to proceed? a. H2O and O2 c. ATP and NAD d. CO2 and RuBP b. ATP and NADPH 35. The enzyme responsible for the initial carboxylation step in the Calvin cycle sometimes oxygenates RuBP by mistake. What do we call this process? c. photorespiration d. fermentation a. mutation b. glycolysis -36. When does substrate-level phosphorylation occur? b. electron transport c. the Calvin cycle d. glycolysis a. the light reactions -37. where do the electrons come from to replace those lost by PSII when light is absorbed? d. NADPH c. PSI a. water 38. Where does the oxygen released in photosynthesis originate? d. the atmosphere c. CO2 b. glucose a. water 39. Where in the cell does respiratory electron transport occur? a. stroma of the chloroplast c. cristae of the mitochondrion d. cytoplasm b. matrix of the mitochondrion

Explanation / Answer

27. Option B is correct.
TCA cycle occurs in the mitochondrial matrix.

28. Option A is correct.
Net production of ATP in anaerobic respiration = 2

29. Option D is correct.
Anaerobic respiration does not require oxygen.

30. Option D is correct.
A C4 plant contains a well developed vascular bundle.

31. Option B is correct.
Cyclic phosphorylation involves only PSI.

32. Option C is correct.
The first step in C3 cycle is the carboxylation of RuBP.

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