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