The enzyme catalase acts on the substrate

A. peroxidase.
B. oxygen.
C. hydrogen.
D. hydrogen peroxide.


Answer: D

Anatomy & Physiology

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The kidneys control the pH of body fluids by adjusting three interrelated factors: H+ excretion, HCO3- excretion, and ammonia secretion

a. True b. False Indicate whether the statement is true or false

Anatomy & Physiology

What is the pacemaker of the heart?

A) AV node B) SA node C) bundle of His D) Purkinje fibers

Anatomy & Physiology

The ventricles completely empty when they contract in systole.

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

Anatomy & Physiology

Which conditions would result in a metabolic rate CLOSEST to the BMR (basal metabolic rate)?

A. a recently well-fed person sitting in class. B. a bed-ridden patient watching TV prior to breakfast. C. an athlete immediately after completing an exercise session. D. a person lying in a cold room and shivering.

Anatomy & Physiology