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