Biology Photosynthesis and Respiration Quiz

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Questions and Answers

What are the reactants of photosynthesis?

  • Carbon dioxide and water (correct)
  • Carbohydrates and oxygen
  • Glucose and carbon dioxide
  • Oxygen and glucose

What are the products of cellular respiration?

  • Carbon dioxide and water (correct)
  • 2 ATP and glucose
  • Oxygen and carbohydrates
  • Carbohydrates and ATP

What is the first reactant in the Calvin Cycle?

Carbon dioxide

What are the products of the Krebs Cycle?

<p>Carbon dioxide and energy carrying molecules (A)</p> Signup and view all the answers

Which of the following are reactants in glycolysis?

<p>2 ATP and glucose (D)</p> Signup and view all the answers

What are the products of lactic acid fermentation?

<p>Lactic acid and NAD+ (A)</p> Signup and view all the answers

What are the reactants of alcoholic fermentation?

<p>2 pyruvate and NADH (C)</p> Signup and view all the answers

What are the products of alcoholic fermentation?

<p>2 alcohol, 2 carbon dioxide, and 2 NAD+ (C)</p> Signup and view all the answers

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Study Notes

Photosynthesis

  • Reactants are carbon dioxide (CO₂) and water (H₂O).
  • Products consist of carbohydrates (C₆H₁₂O₆) and oxygen (O₂), essential for life.

Cellular Respiration

  • Reactants include carbohydrates (C₆H₁₂O₆) and oxygen (O₂).
  • Products are carbon dioxide (CO₂) and water (H₂O), releasing energy for cellular functions.

Calvin Cycle

  • Reactant involves carbon dioxide (CO₂), which is fixed during the process.
  • Products are carbohydrates, serving as energy sources for organisms.

Krebs Cycle

  • Starts with pyruvate, derived from glycolysis.
  • Produces carbon dioxide (CO₂) as a waste product and energy-carrying molecules like NADH and FADH₂, contributing to ATP generation.

Glycolysis

  • Reactants are 2 ATP and glucose (C₆H₁₂O₆).
  • Produces a net gain of 2 ATP, 2 pyruvate molecules, and 2 NADH, occurring in the cytoplasm.

Lactic Acid Fermentation

  • Reactants include 2 pyruvate and glucose (C₆H₁₂O₆).
  • Produces NAD⁺ and 2 lactic acid molecules, allowing glycolysis to continue in anaerobic conditions.

Alcoholic Fermentation

  • Reactants involve 2 pyruvate and NADH.
  • Products consist of 2 alcohol (ethanol), 2 carbon dioxide (CO₂), and 2 NAD⁺, occurring in yeast under anaerobic conditions.

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