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Biochemistry Questions - All Grades

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Grade 9 Biochemical Pathways
The process carried out by yeast that causes bread to dough rise is                         .
  1. alcoholic fermentation
  2. cellular respiration
  3. lactic acid fermentation
  4. mitosis
Grade 10 Macromolecules
Grade 11 Biochemical Pathways
__ is the primary source of food for most cells.
  1. sucrose
  2. cellulose
  3. PGAL
  4. glucose
Grade 9 Biochemical Pathways
Photosynthesis is the process whereby a plant                                        .
  1. converts sunlight into chemical energy
  2. uses carbon dioxide and releases oxygen
  3. produces a sugar called glucose
  4. all of these
Grade 9 Biochemical Pathways
What is the type of Anaerobic Respiration that humans perform?
  1. Diffusion
  2. Lactic Acid Fermentation
  3. Alcoholic Fermentation
  4. Aerobic Fermentation
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Which type of cellular respiration has Kreb's Cycle as one of its steps?
  1. Anerobic Respiration
  2. Kreb Respiration
  3. Photosynthesis
  4. Aerobic Respiration
Grade 9 Biochemical Pathways
What is needed for photosynthesis?
  1. Carbon Dioxide + Light + Water = Sugar + Carbohydrates
  2. Carbon Dioxide + Light + Water + Sugar + Oxygen
Grade 9 Biochemical Pathways
What is the main difference between Aerobic and Anaerobic respiration?
  1. Anaerobic respiration requires Oxygen
  2. Aerobic respiration requires Oxygen
  3. Aerobic respiration requires Carbon Dioxide
  4. Anaerobic respiration requires Carbon Dioxide
Grade 9 Biochemical Pathways
What is the step in Aerobic respiration that also necessary in Anaerobic respiration?
  1. Glycolysis
  2. Prep Step
  3. Krebs Cycle
  4. Oxidated Phosphorylation
Grade 9 Biochemical Pathways
The electron transport chain uses the high-energy electrons from the Krebs cycle to                                                     .
  1. make glucose
  2. convert glucose to pyruvic acid
  3. concert pyruvic acid to citric acid
  4. move H+ ions across the inner mitochondrial membrane
Grade 10 Macromolecules
What are Carbohydrates?
  1. Proteins made up of monomers.
  2. Serve as building materials.
  3. Make up cell membranes.
  4. Organic molecules that are made up of sugar molecules.
Grade 10 Macromolecules
What do fats do?
  1. Store energy
  2. Speed up the chemical reaction
  3. Insulate your body
  4. Both A and C
Grade 11 Macromolecules
Grade 12 Macromolecules
Grade 10 Macromolecules
What describes molecules that play many key roles in building of proteins and can act as enzymes.
  1. Phospholipids
  2. Ribonucleic Acid (RNA)
  3. Deoxyribonucleic Acid (DNA)
  4. Waxes
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