Question

Which of the following statements is untrue?

a) The heart pumps oxygenated blood to the body.
b) Photosynthesis occurs in the chloroplasts of plant cells.
c) Mitochondria are the powerhouse of the cell.
d) Cells communicate through neurotransmitters.

Answer 1

Cells communicate through a variety of mechanisms, including chemical signals such as hormones and neurotransmitters, as well as electrical signals in the form of action potentials.

Step-by-step explanation:

The statement that is untrue is: Cells communicate through neurotransmitters. Cells actually communicate through a variety of mechanisms, including chemical signals such as hormones and neurotransmitters, as well as electrical signals in the form of action potentials. Neurotransmitters specifically facilitate communication between neurons in the nervous system, but they are not the only means of cell communication. Other cells communicate through chemical signals that travel through the bloodstream or through direct contact.