When do muscle fibers produce lactate?
A) Muscle fibers produce lactate when metabolizing amino acids.
B) Muscle fibers produce lactate when metabolizing fatty acids.
C) Muscle fibers produce lactate when ATP is abundant.
D) Muscle fibers produce lactate when there is a lack of oxygen.
E) Muscle fibers produce lactate when the pH of the cell is acidic.
Answer: D
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A) diuresis. B) anuresis. C) urinary edema. D) dialysis.
Deoxygenated blood from the myocardium enters the right atrium through the:
A. cardiac veins. B. coronary arteries. C. coronary sinus. D. superior vena cava.
Which of the following polysaccharides performs a structural role?
A) Amylose B) Glycogen C) Chitin D) Amylopectin
Which hormone suppresses uterine contractions until birth?
A) relaxin B) human chorionic gonadotropin (hCG) C) human placental lactogen (hPL) D) melanocyte-stimulating hormone (MSH)