[Campbell Biology P.171] Based on the information presented in Figure 6.32, which of the fol... | Practice Question

Based on the information presented in Figure 6.32, which of the following correctly compares cellular respiration and photosynthesis?

  • A: Both processes involve the initial stages taking place in the mitochondrial matrix.
  • B: Both processes rely on large protein complexes embedded in internal membranes for key energy conversion steps.
  • C: Rubisco is a key enzyme in cellular respiration, while Hexokinase is central to photosynthesis.
  • D: Cellular respiration produces sugars in the stroma, whereas photosynthesis generates ATP from food molecules.

Explanation

Section b shows 'proteins bluish-purple that form a 'chain' in the inner mitochondrial membrane' for the final stage of cellular respiration. Section c states that 'Photosynthesis begins with large complexes of proteins and chlorophyll green embedded in the thylakoid membranes.' Both are examples of large protein complexes in internal membranes crucial for energy conversion.