Through which ATP-generating mechanism can long-lasting muscle contractions be sustained?

A) oxidative catabolism B) anaerobic catabolism
C) glycolysis D) creatine phosphate reaction


Answer: A

Anatomy & Physiology

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A defense cell engulfing a bacterium illustrates

A) pinocytosis. B) receptor-mediated exocytosis. C) exocytosis. D) phagocytosis. E) receptor-mediated endocytosis.

Anatomy & Physiology

Some hormones act to regulate the concentration of intracellular signals like cyclic adenosine monophosphate (cyclic AMP, or cAMP) by activating or inhibiting adenylyl cyclase, the enzyme responsible for its production, or by activating or inhibiting phosphodiesterases, which are responsible for its destruction. Cyclic AMP, in turn, functions by activating enzyme cascades that set certain

metabolic pathways in motion. The regulation of cAMP levels in cells is an example of a. homeostasis. b. rheostasis. c. equilibrium. d. adaptation. e. all of these.

Anatomy & Physiology

In an individual experiencing an asthma attack, arterial blood levels of PO2 will decrease and arterial blood levels of PCO2 will increase.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Which of the following may be released by cells of the sympathetic division?

A) ACh B) norepinephrine C) epinephrine D) All of the answers are correct. E) None of the answers are correct.

Anatomy & Physiology