[Campbell Biology P.238] Based on the provided text and Figure 10.3, which statement accurat... | Practice Question

Based on the provided text and Figure 10.3, which statement accurately describes the internal structure of a chloroplast and the location of chlorophyll?

  • A: The stroma is a dense fluid inside the thylakoid space, and chlorophyll is suspended within it.
  • B: Chloroplasts are surrounded by two membranes, and thylakoids stacked into grana contain chlorophyll.
  • C: The inner membrane of the chloroplast contains grana, which are stacks of chlorophyll molecules.
  • D: The thylakoid space separates the two outer membranes of the chloroplast.

Explanation

The text states: 'A chloroplast has two membranes surrounding a dense fluid called the stroma. Suspended within the stroma is a third membrane system, made up of sacs called thylakoids... In some places, thylakoid sacs are stacked in columns called grana... Chlorophyll... resides in the thylakoid membranes of the chloroplast.' This confirms that chloroplasts have two membranes and that grana stacks of thylakoids contain chlorophyll within their membranes.