Question

Cells Overview Biology help!
Which of the following statements is true?
a. Since all cells carry out cellular respiration, they contain mitochondria.
b. A cell cannot be subdivided into smaller units that maintain the living state.
c. Plant cells contain chloroplasts and no mitochondria while animal cells contain mitochondria and no chloroplasts.
d. The cell membrane's function is to prevent diffusion of any substances into or out of the cell.

Answer 1

A is wrong since bacteria undergo cellular respiration without mitochondria
C is wrong since plant cells do contain mitocondria due to being eukaryotic cells
D is wrong since the cell membrane's job is to regulate what enters and exits the cell, not prevent anything from crossing the membrane
B is true since we have recognized as the smallest unit of life is a cell

Answer 2

thanks!

Answer 3

np