Physiology Quiz: Fundamental Principles of Physiology - Part 4

Physiology Quiz -
Fundamental Principles of Physiology - Part 4

In order to learn physiology, it is essential that one understand many fundamental principles. Some of these principles are intrinsic to the discipline of physiology, while others are borrowed from disciplines such as molecular biology, cell biology, chemistry, physics, mathematics, computer science, psychology, engineering, and others. Test your knowledge of the fundamental principles of physiology by taking this simple quiz.

(1) Which of the following is/are true about the enzyme adenylate cyclase (AC)?

	(A) It is a membrane-bound enzyme.
	(B) It catalyzes the conversion of ATP to cAMP and pyrophosphate (ATP → cAMP + PP_i).
	(C) It catalyzes the conversion of ATP to cAMP and inorganic phosphate (ATP → cAMP + P_i).
	(D) A Nobel Prize was awarded in 1971 for discovering the role of this enzyme in a ubiquitous cellular signal transduction mechanism.
	(E) Divalent cations, especially, magnesium (Mg²⁺) are required for the normal function of this enzyme.

(2) The enzyme adenylate cyclase is also commonly known as adenylyl cyclase.

	True
	False

(3) In eukaryotic cells, the site of protein synthesis is the:

	(A) nucleus
	(B) cytoskeleton
	(C) smooth endoplasmic reticulum
	(D) rough endoplasmic reticulum
	(E) Golgi apparatus

(4) Which of the following organelles of eukaryotic cells is/are enclosed in a double membrane?

	(A) Golgi apparatus
	(B) Nucleus
	(C) Mitochondria
	(D) Chloroplasts
	(E) Exocytotic and endocytotic vesicles

(5) The sarcoplasmic/endoplasmic reticulum Ca²⁺ ATPase (SERCA) is a:

	(A) F-type ATPase
	(B) P-type ATPase
	(C) V-type ATPase