You owe your very life to chloroplasts. The reason is that:
A) chloroplasts supply all the ATP needed by living organisms.
B) when we eat plants, it is the chloroplasts that are the nutritious part of plant cells.
C) chloroplasts produce all the water and carbon dioxide essential for life.
D) chloroplasts produce the oxygen we breathe and ultimately are the source of most nutrients we consume.
E) like the ancestors of mitochondria, the ancestors of chloroplasts were once bacteria taken up by a eukaryotic cell.

Question

Quizplus · Accepted Answer

Chloroplasts are responsible for photosynthesis, which produces oxygen and organic compounds that form the basis of most food chains, thus providing the oxygen we breathe and nutrients we consume.

You Owe Your Very Life to Chloroplasts