Which of the following statements about the citric acid cycle is false?
A. At several steps, NADH molecules are formed.
B. The major end product of the cycle is lactate.
C. Two ATP are formed in the cycle from one glucose.
D. The process occurs in the mitochondria.
E. Carbon dioxide is produced at several steps in the cycle.
Answer: B
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The force per unit area that blood places on the inside wall of a blood vessel
A. is called the pulse. B. is called the blood pressure. C. increases the further the vessel is from the heart. D. is greater during diastole. E. is greater in the inferior vena cava than in the common iliac vein.
In some forms of diabetes, an insensitivity to insulin seems to be present. This insensitivity could be the result of
A. up-regulation. B. over-regulation. C. down-regulation. D. a lack of regulation. E. modulation.
Which statement accurately describes alveolar and systemic gas exchanges?
A. In both alveolar and systemic gas exchange, oxygen diffuses out of the blood. B. In both alveolar and systemic gas exchange, oxygen diffuses toward the blood. C. In alveolar gas exchange oxygen diffuses into the blood, but in systemic gas exchange it diffuses out of the blood. D. In alveolar gas exchange oxygen diffuses out of the blood, but in systemic gas exchange it diffuses into the blood.
The procedure of ultrasounding the heart is called:
A) cardiogram B) cardiosonogram C) echocardiography D) corography