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Ninth Grade (Grade 9) Biochemistry Questions

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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 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 9 Biochemical Pathways
Grade 9 Macromolecules
Which of the following is a hydrophobic material?
  1. paper
  2. table salt
  3. wax
  4. sugar
  5. pasta
Grade 9 Biochemical Pathways
                  converts nitrogen gas into a solid.
  1. conjugation
  2. sublimation
  3. nitrogen fixation
  4. condensation
Grade 9 Macromolecules
Grade 9 Macromolecules
Which is NOT part of a phospholipid?
  1. glycerol
  2. charged phosphate group
  3. two fatty acid chains
  4. sucrose
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