Unlike photosynthesis, cellular respiration occurs in

a
plant cells only
b
all cell types, but plant cells
c
animal cells only
d
all cells, all the time

d

all cells, all the time

To determine the correct answer, let's understand what photosynthesis and cellular respiration are and where they occur.

Photosynthesis is the process by which green plants and some other organisms convert light energy into chemical energy. This process takes place in specialized organelles called chloroplasts, which are found in plant cells.

Cellular respiration, on the other hand, is the process by which cells break down organic molecules to release energy. It occurs in the mitochondria, which are present in both animal and plant cells.

Based on this information, we can eliminate options C and D since cellular respiration does not occur exclusively in animal cells or all cell types, all the time.

The correct answer is option B: all cell types, but plant cells. Cellular respiration occurs in both animal and plant cells, but it is important to note that only plant cells undergo photosynthesis.

b

all cell types, but plant cells