Question

V
can increase in number when the cell needs it
a) Mitochondria
b) The chloroplast
c) Ribosomes
d) The cytoplasm​

Answer 1

Answer:

How did mitochondria and chloroplasts most likely arise? They arose from bacteria that were engulfed and not digested. Mitochondria are thought to have arisen from aerobic bacteria, and chloroplasts from photosynthetic bacteria. This explains their double membrane and own chromosomes.

Answer 2

Answer:

Mitochondria can increase in number when the cell needs it.

Explanation:

• Because they transform energy from one form to another—from food ingredients to ATP—mitochondria in eukaryotic cells behave somewhat like batteries. Accordingly, cells with high metabolic demands can satisfy their greater energy requirements by containing more mitochondria.
• Because they generate energy-dense molecules for the cell, mitochondria are referred to as the powerhouses of the cell. In many species, the mitochondrial genome is transmitted from the mother. It is a sausage-shaped organelle with two membranes linked to it that is present in practically all eukaryotic cells.
• Its lumen is split into two different aqueous compartments by double membranes. The outer membrane creates a continuous barrier with the cytoplasm, whereas the interior compartment, known as the "matrix," is folded into cristae.

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