Question

6) Which photosystem works first during lincar electron flow and what product is made using the energy absorbed by that photosystem? a) photosystem I (PSI), ATP b) PSI, NADPH c) PSII, ATP d) PSII, NADPH 7) Regulatory molecules can bind to an enzyme to modify its activity. Name the site of an enzyme to which an activator or noncompetitive inhibitor can bind. a) active site b) allosteric site 8) Where do the reactions of the Calvin cycle take place in a plant cell? a) cytoplasm b) inner chloroplast membrane c) thylakoids d) stroma e) intermembrane space 9) Number (within the circles) the following steps of aerobie respiration in the order in which they occur starting with what happens first (1) during the breakdown of glucose and ending with what happens last (3) citric acid cycle slycolysis o pyruvate oxidation O Use an arrow to point to the step that takes place in a different intracellular location than the other two TO) During acrobic respiration, both NADIT and FADH, deliver electrons to the electron transport chain Who are more ATPs made when an NADH delivers the electrons compared to when an FADH, delivers the Electrons? You should include a few details about how ATP is made in your explanation

Answer 1

Q6

Answer C-PSII and ATP

In case of electron transfer photosystem II comes in action first and generates ATP

Q7

Answer B- allosteric site

non-competitive inhibitor bind to the enzyme at an allosteric site so that it can change the shape of enzyme and cease the enzyme catalysis reaction.

Q8: Answer D-storma

The storma is the inner space of the chloroplast and the Calvin cycle takes place in the stroma

Q9: step 1 is glycolysis in which glucose gets converted to two molecules of pyruvate

step 2 is pyruvate oxidation in which two pyruvate molecules formed in glycolysis gets converted to acetyl co-A

step 3 is citric acid cycle or Krebs cycle in which acetyl co-A combines with 4 carbon molecule and undergoes series of reaction to produce 4 carbon molecule and ATP

Q10: Aerobic respiration produces more ATP as compared to anaerobic respiration because in presence of oxygen, glucose can be broken down completely into carbon dioxide and this releases energy in the form of 38 ATP molecules. During the citric acid cycle the NADH molecule yields 15 ATP whereas the FADH2 molecule yields 3 ATP. In the electron transport chain the electrons are transferred and energy is released. Series of redox reactions takes place and NADH and FADH2 are reduced to NAD+ and FAD+. NADH has good potential of donating electrons and generate energy so that complex I can use this and pump protons across the membrane. Whereas, FADH2 has poor potential of donating electrons to the complex II and therefore produce less energy and cannot pump proton into the membrane.