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College Biochemical Pathways Questions

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College Biochemical Pathways
What is aerobic?
  1. It needs oxygen
  2. It doesn't need oxygen
  3. It is constantly active
  4. It is stagnant
College Biochemical Pathways
Which statement regarding glycolysis is true?
  1. Glucose is not catabolized.
  2. NADH is not formed.
  3. Pyruvate is not formed.
  4. Oxygen is not required.
  5. ATP is not formed.
College Biochemical Pathways
Which of the following is true of Light Reactions?
  1. light energy is converted to chemical energy
  2. the energy is temporarily stored in ADP
  3. the energy is temporarily storied in NADPH
  4. Light is captured through absorption of light in the chloroplasts, found only in plants and bacteria.
  5. Pigments store all wavelengths of light
College Biochemical Pathways
Which is an example of catabolism?
  1. Homeostasis
  2. Hydrolysis
  3. Dehydration synthesis
College Biochemical Pathways
What are the four stages of cellular respiration?
  1. glycolysis
  2. transition reaction
  3. kreb's cycle
  4. Electron Transport Chain
  5. none of the above
  6. all of the above
  7. only answers b & d
  8. only answers a & c
College Biochemical Pathways
Match these with the appropriate terms (in order).

1. Non-protein helpers increase catalytic activity of enzyme- can be inorganic metal ions

2. Resembles substrate and competes for binding site on enzymes

3. Molecules that increase catalytic activity but are inorganic
  1. Cofactors, Noncompetitive Inhibitor, Coenzymes
  2. Allosteric site, Competitive inhibitor, Coenzymes
  3. Coenzymes, Competitive inhibitor, Cofactors
  4. Cofactors, Competitive inhibitor, Coenzymes
  5. None of the above
College Biochemical Pathways
What do accessory pigments do?
  1. They add energy to the Kreb's cycle
  2. They both build bonds in glucose
  3. They increase the amount of light energy that can be captured
  4. They work during the light dependent reactions
  5. C and D are both correct
College Biochemical Pathways
What is a primary function of chlorophyll in plants and algae?
  1. It refracts sunlight
  2. It helps the plants grow
  3. Nutrients the cytoskeleton
  4. It oxidizes sugar
College Biochemical Pathways
What is the 3 carbon molecule of which two are converted from glucose at the end of glycolysis?
  1. Acetyl Co-A
  2. Pyruvate
  3. Glucose
  4. Oxygen
College Biochemical Pathways
Glycolysis does not require oxygen.
  1. True
  2. False
College Biochemical Pathways
The processes of cellular respiration and photosynthesis are complementary. During these energy conversions                                                                                    .
  1. products of cellular respiration become reactants for photosynthesis and vice-versa
  2. glucose is used to produce light energy
  3. some energy is lost in the form of heat
  4. high energy molecules like CO2, O2, and H2O are produced
  5. a and c
College Biochemical Pathways
In aerobic respiration, electrons are added to NAD+ and make NADH. From where do these electrons come?
  1. the splitting of water
  2. the carbons of glucose
  3. the breakdown of ATP
  4. the formation of a proton gradient
  5. the electron transport chain
College Biochemical Pathways
Which of the following are products of light dependent reactions?
  1. O2
  2. Glucose
  3. NADPH
  4. ATP
  5. A,C, and D
College Biochemical Pathways
Which of the following is a description of ATP?
  1. product of the citric acid cycle
  2. electron carrier in photosynthesis
  3. electron carried in cellular respiration
  4. also called Photosystem II
  5. also called Photosystem I
College Biochemical Pathways
A product of photosynthesis is molecular oxygen. What is the source of this oxygen?
  1. water and carbon dioxide
  2. carbon dioxide and glucose
  3. water
  4. carbon dioxide
  5. none of the above
College Biochemical Pathways
In the absence of O2, cells capable of fermentation                                  .
  1. no longer produce ATP.
  2. can oxidize FAD.
  3. can oxidize NADH to produce NAD+.
  4. accumulate glucose.
  5. accumulate pyruvate.
College Biochemical Pathways
What is the final electron receptor in the ETC in cellular respiration?
  1. NADH
  2. FADH2
  3. CO2
  4. H2O
  5. Oxygen
College Biochemical Pathways
The first stage of glucose oxidation is called                   ?
  1. glycolysis
  2. intermediate stage
  3. glycogenisis
  4. citric acid cycle
College Biochemical Pathways
Which of the following is not a place involved in Photosynthesis?
  1. Thylakoid Membrane
  2. Stroma
  3. Outer Membrane
  4. Cell Membrane
College Biochemical Pathways
In the electron transport chain, in what location does light get absorbed?
  1. Photosystem I
  2. Photosystem II
  3. Mobile Electron Carrier
  4. Both A and B
  5. A, B, and C
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