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Ninth Grade (Grade 9) Biochemical Pathways Questions

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Grade 9 Biochemical Pathways
C6H12O6+6O2→6CO2+6H2O+energy is the balanced chemical equation for which process?
  1. Photosynthesis
  2. Glycolysis
  3. Cellular respiration
  4. Krebs cycle
Grade 9 Biochemical Pathways
Which are typically products of cellular respiration?
  1. carbon dioxide and water
  2. oxygen and carbon dioxide
  3. water and glucose
  4. glucose and oxygen
Grade 9 Biochemical Pathways
Which are typically products of photosynthesis?
  1. oxygen and carbon dioxide
  2. glucose and oxygen
  3. carbon dioxide and water
  4. water and glucose
Grade 9 Biochemical Pathways
Which correctly describes the purpose of photosynthesis?
  1. to release energy by decomposing glucose
  2. to store energy in the form of carbon dioxide
  3. to use sunlight energy to make sugars
  4. to create water for hydration
Grade 9 Biochemical Pathways
Which most accurately describes the purpose of cellular respiration?
  1. to decompose glucose into energy that can be used for cellular functions
  2. to decompose usable energy into smaller parts
  3. to decompose different types of substances to be used to construct other parts of the cell
  4. all of the above
Grade 9 Biochemical Pathways
What is the sum of every chemical reaction that occurs in the body?
  1. metabolism
  2. homeostasis
Grade 9 Biochemical Pathways
Photosynthesis is an instance of
  1. homeostasis.
  2. reproduction.
  3. metabolism.
  4. growth and development.
  5. cell structure.
Grade 9 Biochemical Pathways
Which statement describes cellular respiration?
  1. the process of decomposing chemical energy stored in bonds into energy that can be used by the cell
  2. the process of creating food for the cell
  3. the process of combining oxygen and water to produce another substance to be transported
  4. the process of making proteins
Grade 9 Biochemical Pathways
Which process is NOT a stage of cell respiration?
  1. Calvin cycle
  2. Krebs cycle
  3. glycolysis
  4. electron transport chain
Grade 9 Biochemical Pathways
The process by which plants use carbon dioxide, water, and light energy to make food is
  1. semipermeable.
  2. diffusion.
  3. osmosis.
  4. photosynthesis.
Grade 9 Biochemical Pathways
When fermentation occurs in the absence of oxygen, it is                .
  1. aerobic
  2. anaerobic
  3. cyclic
  4. oxygen-rich
Grade 9 Biochemical Pathways
The process that best differentiates plants from animals is
  1. osmosis.
  2. photosynthesis.
  3. reproduction.
  4. respiration.
Grade 9 Biochemical Pathways
Which process is not a part of cellular respiration?
  1. glycolysis
  2. Krebs cycle
  3. Calvin cycle
  4. electron transport chain
Grade 9 Biochemical Pathways
Glycolysis                                                              .
  1. consumes 2 ATP and produces 2 ATP, 2 NADH, and 2 pyruvates
  2. consumes 2 ATP and produces 4 ATP , 2 NADH , and 2 pyruvates
  3. consumes 4 ATP and produces 2 ATP , 2 NADH , and 2 pyruvates
  4. consumes 2 ATP and produces 4 ATP , 4 NADH , and 2 pyruvates
Grade 9 Biochemical Pathways
What are the products of cellular respiration?
  1. oxygen and ATP
  2. oxygen and carbon dioxide
  3. ATP, carbon dioxide, and water
  4. oxygen, glucose, and carbon dioxide
Grade 9 Biochemical Pathways
What is the chemical equation for photosynthesis?
  1. 5CO+7H2O→C6H12O6+6O2
  2. 6CO2+6H2O→C6H12O6+6O2
  3. 4CO2+7H2O→C6H12O5+4O2
Grade 9 Biochemical Pathways
Which process is the second stage of cell respiration?
  1. Calvin cycle
  2. Krebs cycle
  3. glycolysis
  4. electron transport chain
Grade 9 Biochemical Pathways
The energy-storing molecules of photosynthesis are
  1. ADP and NADP.
  2. ATP and NADPH.
  3. light and glucose.
  4. carbon dioxide and water.
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