Cellular Communication, Homeostasis, and Feedback Mechanisms Quiz

Mitochondrion produces ATP through cellular respiration.

Sodium (Na+) is predominantly found outside the cell membrane in the extracellular fluid.

The primary function of the endocrine system is to produce and release hormones.

Dopamine is an example of a neurotransmitter.

Smooth endoplasmic reticulum is responsible for detoxifying harmful substances in the cell.

Hormones facilitate chemical signaling in cellular communication.

Regulation of blood sugar by insulin and glucagon is an example of negative feedback mechanism.

Sodium (Na+) plays a crucial role in the action potential of nerve cells.

The hypothalamus regulates body temperature and thirst in homeostasis.

Parathyroid hormone regulates blood calcium levels.

Autophagy is responsible for the removal of damaged organelles and proteins.

Second messengers activate intracellular signaling pathways in cellular communication.