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College Biochemical Pathways Questions

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College Biochemical Pathways
What is the final stage of glucose oxidation?
  1. intermediate stage
  2. glycolysis
  3. citric acid cycle
  4. electron transport system
College Biochemical Pathways
The third stage of glucose oxidation is called                          .
  1. intermediate stage
  2. glycolysis
  3. citric acid cycle
  4. electron transport system
College Biochemical Pathways
College Biochemical Pathways
What is the molecule that enters the citric acid cycle?
  1. pyruvic acid
  2. lactic acid
  3. citric acid
  4. acetyl coenzyme A
College Biochemical Pathways
If the arrow in the below chemical formula points to the right, what process is it and which steps occur during that process?
[math] 6CO_2 +12 H_2O square C_6H_12O_6 + 6O_2 + 6H_2O [/math]
  1. Cellular respiration: Glycolysis, Kreb's cycle, ETC
  2. Photosynthesis: Glycosis, Kreb's cycle, ETC
  3. Cellular respiration: Light dependent reactions, Calvin cycle
  4. Photosynthesis: Glycolysis, Kreb's cycle, ETC
  5. Photosynthesis: Light dependent reactions, Calvin Cycle
College Biochemical Pathways
What are the main products of photosynthesis?
  1. glucose and oxygen
  2. ATP and oxygen
  3. mesophyll
  4. photosynthesis
College Biochemical Pathways
College Biochemical Pathways
College Biochemical Pathways
The [math]CO_2[/math] we exhale is produced during which stage of respiration?
  1. ETC
  2. Glycosis
  3. Kreb's Cycle
  4. Kreb's Cycle and ETC
  5. Calvin Cycle
College Biochemical Pathways
In aerobic respiration the function of oxygen is to combine with                                                                  .
  1. ATP in the Krebs cycle
  2. Glucose in the glycolysis cycle
  3. Enzymes at the active site
  4. electrons and hydrogen at the end of the electron transport chain
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
The loss of an electron is involved in                         .
  1. Phosphorylation
  2. Reduction
  3. Electron transport chain
  4. Oxidation
College Biochemical Pathways
ATP, the energy molecule of the cell, is known to perform phosphorylation of many different molecules. What does this mean?
  1. ATP can recieve many different phosphate groups
  2. ATP can convert molecules into nucleic acids
  3. ATP can donate phosphate groups to other molecules
  4. ATP can release a large amount of energy when hydrolized
College Biochemical Pathways
College Biochemical Pathways
Why do photosynthesis and aerobic respirations form a balanced cycle in the biosphere?
  1. both processes produce about equal amounts of oxygen
  2. both processes break down organic molecules into CO2 and H2O
  3. both processes occur in the mitochondria
  4. their overall reactions are exactly the opposite of one another
  5. photosynthesis operates only in plants, while respiration operates only in animals
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