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Ninth Grade (Grade 9) Biochemical Pathways Questions

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Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
What step in aerobic respiration is also necessary in anaerobic respiration?
  1. glycolysis
  2. prep steps
  3. Krebs cycle
  4. oxidative phosphorylation
Grade 9 Biochemical Pathways
Pyruvate becomes lactate (or ethanol) and carbon dioxide during the process of
  1. glycolysis.
  2. fermentation.
  3. the Krebs cycle.
  4. the electron transport chain.
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
Choose all the products of photosynthesis.
  1. ATP
  2. carbon dioxide
  3. glucose
  4. oxygen
  5. sunlight
  6. water
Grade 9 Biochemical Pathways
Which set of factors affect the rate of photosynthesis?
  1. light intensity and fertilizer amount
  2. water, oxygen concentration, and light intensity
  3. temperature, light intensity, and carbon dioxide concentration
  4. cellular respiration rate, light intensity, and oxygen concentration
Grade 9 Biochemical Pathways
Which of the series lists the organic molecules in the order that they are used to produce energy?
  1. lipids, carbohydrates, and proteins
  2. carbohydrates, proteins, and lipids
  3. carbohydrates, lipids, and proteins
  4. proteins, lipids, and carbohydrates
Grade 9 Biochemical Pathways
Which of these equations best represents photosynthesis?
  1. C+O2+H2OCO2+HOH
  2. 6CO2+6H2OC6H12O6+6O2
  3. 6C+6H2OC6H12O6
  4. C6H12O66CO2+6H2O
Grade 9 Biochemical Pathways
Why is the chemical breakdown of water (hydrolysis) the first step of photosynthesis?
  1. It makes ATP.
  2. It produces thylakoids.
  3. It generates electrons.
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
What happens every time two high-energy electrons pass down the electron transport chain?
  1. ATP is formed from ADP.
  2. Cellular respiration stops.
  3. Low-energy electrons interfere with glycolysis.
  4. Hydrogen ions are transported across a membrane.
Grade 9 Biochemical Pathways
Grade 9 Biochemical Pathways
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