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Biochemical Pathways in Plant Metabolism
  • 1. Which process in plants involves converting light energy into chemical energy?
A) Transpiration
B) Photosynthesis
C) Respiration
D) Glycolysis
  • 2. Which molecule is the primary energy carrier in plant cells?
A) Adenosine triphosphate (ATP)
B) Ferredoxin
C) Nicotinamide adenine dinucleotide (NAD+)
D) Adenosine diphosphate (ADP)
  • 3. In which cellular organelle does photosynthesis take place?
A) Vacuole
B) Chloroplast
C) Mitochondrion
D) Endoplasmic reticulum
  • 4. What is the first step in the process of glycolysis?
A) ATP hydrolysis
B) NADH production
C) Glucose phosphorylation
D) Pyruvate formation
  • 5. Which metabolic pathway converts glucose into pyruvate?
A) Electron transport chain
B) Calvin cycle
C) Krebs cycle
D) Glycolysis
  • 6. What is the primary role of the pentose phosphate pathway in plant metabolism?
A) To convert pyruvate to acetyl-CoA
B) To store glucose as starch
C) To produce NADPH and ribose-5-phosphate
D) To break down fatty acids for energy
  • 7. Which process involves the transfer of electrons along the electron transport chain in mitochondria?
A) Photophosphorylation
B) Oxidative phosphorylation
C) Substrate-level phosphorylation
D) Photosystem II
  • 8. What metabolic pathway is responsible for the degradation of fatty acids to generate acetyl-CoA?
A) TCA cycle
B) Calvin cycle
C) Beta-oxidation
D) Glycolysis
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