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Tenth Grade (Grade 10) Biochemical Pathways Questions

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Grade 10 Biochemical Pathways
Grade 10 Biochemical Pathways
What best describes how fermentation allows cells to produce ATP in anaerobic environments?
  1. Citric acid transforms acetyl CoA into lactic acid or ethanol
  2. ATP is produced by splitting up pyruvic acid molecules
  3. Pyruvic acid accepts the energetic electron from NADH, oxidizing it to NAD+ and allowing glycolysis to start over
  4. Carbon fixation occurs which changes RuBP into ATP and splits water molecules
  5. Oxygen accepts the final electron in the hydrogen ion pump, producing ATP with ATP Synthase
Grade 10 Biochemical Pathways
Which of the following correctly summarizes cellular respiration?
  1. [math]6 O_2 + C_6H_12O_6 = 6 CO_2 + 6 H_2O + "energy"[/math]
  2. [math]6 CO_2 + C_6H_12O_6 + "energy" = 6 CO_2 + 6 H_2O[/math]
  3. [math]6 CO_2 + 6 H_2O = 6 O_2 + C_6H_6O_6 + "energy"[/math]
  4. [math]6 CO_2 + 6 H_2O + "energy" = 6 O_2 + C_6H_12O_6[/math]
Grade 10 Biochemical Pathways
All of the following are examples of how carbon moves through the carbon cycle EXCEPT
  1. biological processes like photosynthesis and respiration
  2. biological processes like evaporation and transpiration
  3. geochemical processes like erosion and volcanic activity
  4. human activities like mining, deforestation, and fossil fuels
Grade 10 Biochemical Pathways
Oxygen is released during what part of photosynthesis?
  1. Light Reactions
  2. Calvin Cycle
  3. Kreb's Cycle
  4. Glycolysis
Grade 10 Biochemical Pathways
Yeast and plants carry out                           when oxygen is not present.
  1. Alcoholic fermentation
  2. Lactic acid fermentation
  3. Chemiosmosis
  4. Oxidative phosphorylation
Grade 10 Biochemical Pathways
What are the reactants of cellular respiration?
  1. Glucose and oxygen
  2. Oxygen and carbon dioxide
  3. Water and oxygen
  4. Glucose and carbon dioxide
Grade 10 Biochemical Pathways
Grade 10 Biochemical Pathways
What are the three stages of cellular respiration?
  1. glycolysis, Kreb’s cycle, and electron transport chain
  2. glycolysis, Kreb’s cycle, and exocytosis
  3. phagocytosis, Kreb’s cycle, and electron transport chain
Grade 10 Biochemical Pathways
[math]ENERGY+6CO_2+6H_2OrarrC_6H_12O_6+6O_2[/math]

The formula above gives the overall products and reactants for what process?
  1. photosynthesis
  2. cellular respiration
  3. cellular transport
  4. the Kreb's cycle
  5. the Calving cycle
Grade 10 Biochemical Pathways
What are the products of cellular respiration?
  1. Carbon dioxide
  2. Water
  3. Energy
  4. All of the above
Grade 10 Biochemical Pathways
Which of these best describes the process of cellular respiration?
  1. Occur only in animals
  2. Perform only by the ones who can't do photosynthesis
  3. Occur in all organisms
  4. Converts chemical energy in food to usable energy (ATP) in all organisms
Grade 10 Biochemical Pathways
What do both plants and animals use oxygen for?
  1. respiration
  2. breathing
  3. photosynthesis
  4. transpiration
Grade 10 Biochemical Pathways
What are the stages of cellular respiration?
  1. glycolysis
  2. krebs cycle
  3. electron transport
  4. all of these
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