[Campbell Biology P.256] The 'Concept Check 10.6' section asks how plants use the sugar they... | Practice Question

The 'Concept Check 10.6' section asks how plants use the sugar they produce to directly power cellular work. Which of the following examples best illustrates such a use, considering the broader context of cellular activities discussed in biology?

  • A: Directly converting G3P into starch for long-term energy storage.
  • B: Using ATP and NADPH generated from the Calvin cycle to drive active transport processes.
  • C: Breaking down sucrose through cellular respiration to produce ATP for processes like growth and nutrient uptake.
  • D: Expelling excess O₂ through stomata to maintain cellular turgor.

Explanation

The sugar sucrose or glucose derived from G3P produced during photosynthesis serves as an energy source. Plants break down these sugars through cellular respiration to generate ATP, which is the direct energy currency used to power various cellular activities, including active transport like nutrient uptake and biosynthesis for growth.