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