How many times is chloroplast larger than mitochondria?

Answer 1

This is a relatively complicated question as the exact origins of mitochondria and how they came to be included in eukaryotic cells is still under investigation and therefore open to debate.

Everyone seems to agree though, that they originally come from bacterium and that they were assimilated into eukaryotic cells either because they were useful or through some form of symbiosis.

As mitochondria are common to both plant and animal cells it could therefore be argued that they shared a common ancestor at some point in evolution.

The inclusion of the chloroplast came later, and a separate line of mitochondrial and chloroplast carrying cells evolved - eventually becoming plants. The line without the chloroplast becoming animals.

Answer 2

The theory of endosymbiosis is that mitochondria and chloroplasts were once unicellular organisms which were engulfed by other unicellular organisms. There is quite a bit of evidence for this - including the fact that both mitochondria and chloroplasts retain their own DNA. They also often have an extra membrane surrounding them - possibly left over from endocytosis, when the cell surrounded it in order to bring it into the cell.

Answer 3

Mitochondria are 1-10 micrometers in diameter. chloroplasts are a little larger at 2-10 micrometers in diameter. Chloroplasts are less well known than their mitochondria, though they are usually much larger and have a key role in producing the reduced compounds that store energy which is then broken down in mitochondria.

Answer 4

While oxygen-producing cyanobacteria came first, the mitochondria was subsumed by cells using endosymbiosis before the chloroplast was.

Answer 5

Yes, because mitochondria has a double membrane that suggests is evolved before chloroplasts

Answer 6

Of course not,it is smaller.They are sinked in the cytoplasm.

Answer 7

From pre existed bacteria. They have evolved from symbiotic relationship

Answer 8

No, chloroplasts are heavier.

Answer 9

mitochondria

Answer 10

The chloroplast is bigger