_is the age at which women who become pregnant are advised to check for chromosomal abnormalities in their fetuses. question 19 options: a.50 b.40 c.45 d.35

C

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.