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College Biochemistry Questions

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College Macromolecules
The primary elements forming biomolecules include                                .
  1. Carbon, Hydrogen and Oxygen
  2. Nitrogen, Potassium and Lithium
  3. Hydrogen, Nitrogen, and Silicon
  4. Calcium, Chlorine and Boron
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 Macromolecules
What is the most common element in the human body by mass?
  1. Calcium
  2. hydrogen
  3. carbon
  4. oxygen
  5. nitrogen
College Macromolecules
College Macromolecules
College Macromolecules
What is a(n) example of carbohydrate?
  1. Sugar
  2. Starch
  3. Both sugar and starch
  4. Neither sugar and starch
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
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
During photosynthesis, ATP molecules are generated by
  1. chemiosmosis
  2. the splitting of water
  3. digestion
  4. fermentation
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 Macromolecules
What forms the sugar/phosphate backbone of each strand of DNA?
  1. Phosphodiester covalent bonds
  2. Hydroxyldiester covalent bonds
  3. Manganesdiester covalent bonds
  4. Carbodiester covalent bonds
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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