Which of the following most accurately describes the state of consciousness known as REM sleep?

A. EEG tracings show large amplitude, low-frequency waves; subject has very low muscle tone; if awakened will usually report dreaming
B. EEG tracings show low amplitude, high-frequency activity; subject has normal muscle tone; if awakened will usually report dreaming
C. EEG tracings show low amplitude, high-frequency activity; subject has very low muscle tone; if awakened will usually report dreaming
D. EEG tracings show low amplitude, high-frequency activity; subject has normal muscle tone; if awakened will not usually report dreaming
E. EEG tracings show large amplitude, low-frequency waves; subject has normal muscle tone; if awakened will usually report dreaming


C

Anatomy & Physiology

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Which of the following represents the overall reaction for aerobic respiration?

A. C6H12O6 + 6 H2O ? 6 CO2 + 6 O2 B. C6H12O6 + 6 O2 ? 6 CO2 + 6 H2O C. 6 CO2 + 6 H2O ? C6H12O6 + 6 O2 D. 6 O2+ 6 H2O ? C6H12O6 + 6 CO2 E. C6H12O6 + 6 CO2 ? 6 O2 + 6 H2O

Anatomy & Physiology

Chemical reactions with the property of being able to proceed from reactants to products and from products to reactants are called

A. synthesis reactions. B. decomposition reactions. C. exchange reactions. D. reversible reactions. E. net reaction rates.

Anatomy & Physiology

The primary function of adrenocorticotropic hormone (ACTH) is to

A.  regulate salt and water balance by acting on  the renal system. B.  stimulate glucocorticoid release from the adrenal glands. C.  stimulate adrenaline release from the adrenal medulla. D.  stimulate cell growth and cell division in muscle and bone. E.  stimulate the development of the folds on the surface of the brain.

Anatomy & Physiology

Which of the following statements is most correct regarding the intracellular chemical signals known as "second messengers"?

A) Second messengers usually inactivate protein kinase enzymes. B) Second messengers usually act to remove nitric oxide (NO) from the cell. C) Cyclic AMP and calcium may be second messengers. D) Second messengers act through receptors called K-proteins.

Anatomy & Physiology