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Ninth Grade (Grade 9) Biochemical Pathways Questions

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Grade 9 Biochemical Pathways
What type of anaerobic respiration do humans perform?
  1. diffusion
  2. lactic acid fermentation
  3. alcoholic fermentation
  4. aerobic fermentation
Grade 9 Biochemical Pathways
In photosynthesis, light energy from the Sun is captured by the green pigment
  1. anthocyanin.
  2. chlorophyll.
  3. melanin.
  4. enzyme.
Grade 9 Biochemical Pathways
What is needed for photosynthesis?
  1. Carbon dioxide, light, water, sugar, and carbohydrates
  2. Sunlight, water, carbon dioxide, and chlorophyll
Grade 9 Biochemical Pathways
The primary factor that affects the rate of photosynthesis is
  1. carbon dioxide.
  2. sunlight.
  3. temperature.
  4. water.
Grade 9 Biochemical Pathways
Which type of cellular respiration includes the Krebs cycle as one of its processes?
  1. anerobic respiration
  2. Krebs respiration
  3. photosynthesis
  4. aerobic respiration
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
Light-dependent reactions and light-independent reactions are the two stages of
  1. reactants.
  2. the thylakoid.
  3. photosynthesis.
  4. learned behaviors.
Grade 9 Biochemical Pathways
The first set of reactions in cellular respiration is known as
  1. glycolysis.
  2. Krebs cycle.
  3. Calvin cycle.
  4. electron transport chain.
Grade 9 Biochemical Pathways
In the presence of oxygen, one glucose molecule has sufficient energy to produce up to                 .
  1. 4 NADH molecules
  2. 12 FAD molecules
  3. 38 ATP molecules
  4. all of the above
Grade 9 Biochemical Pathways
During                             , one glucose molecule produces two pyruvate molecules and two ATP molecules.
  1. glycolysis
  2. fermentation
  3. the Krebs cycle
  4. the electron transport chain
Grade 9 Biochemical Pathways
The Krebs cycle and the electron transport chain take place in the
  1. cell membrane.
  2. mitochondria.
  3. nucleus.
  4. cytosol.
Grade 9 Biochemical Pathways
The process in which one molecule of glucose is broken in half to produce two pyruvic acids and other three-carbon compounds is called
  1. glycolysis.
  2. cytokinesis.
  3. cell division.
  4. cellular respiration.
Grade 9 Biochemical Pathways
During                             , pyruvate from glycolysis is used to make carbon dioxide, ATP, NADH, and FADH2.
  1. fermentation
  2. photosynthesis
  3. the Krebs cycle
  4. the electron transport chain
Grade 9 Biochemical Pathways
By the end of the glycolysis stage of cellular respiration, glucose has been transformed into
  1. nitric acid.
  2. sulfuric acid.
  3. pyruvic acid.
  4. hydrochloric acid.
Grade 9 Biochemical Pathways
The Krebs cycle is also known as
  1. glycolysis.
  2. the Calvin cycle.
  3. the citric acid cycle.
  4. the electron transport chain.
Grade 9 Biochemical Pathways
The first step in fermentation is
  1. glycolysis.
  2. the Krebs cycle.
  3. lactic acid production.
  4. the electron transport chain.
Grade 9 Biochemical Pathways
Any process that requires oxygen is referred to as
  1. aerobic.
  2. anaerobic.
  3. calorie.
  4. a Krebs cycle.
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