alleryStart learning →How many membranes make up the envelope of a chloroplast?
AFour membranes
BThree membranes
CTwo membranes
DOne membrane only
Answer & Solution
Correct answer: C. Two membranes
1. In all autotrophic eukaryotes, photosynthesis takes place inside a chloroplast.
2. Chloroplasts have a double membrane envelope.
3. That envelope is composed of an outer membrane and an inner membrane.
4. Stacks of thylakoids inside form a third membrane layer, which is separate from the envelope itself.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 8 "Photosynthesis", section 8.1 Overview of Photosynthesis_
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