Which of the following organelles are sometimes called "suicide sacs," because they are able to destroy the whole cell?
A. Centrioles
B. Mitochondria
C. Golgi apparatus
D. Ribosomes
E. Lysosomes
Answer: E
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What is the ratio of fatty acids to glycerol in triglycerides (neutral fats)?
A) 4:1 B) 3:1 C) 1:1 D) 2:1
Which vein or veins drain the head, neck, and upper extremities?
a. jugular veins b. azygos vein c. subclavian veins d. brachiocephalic veins
Which of the following is true regarding body temperature?
A) Adult oral temperature is typically 36.6° to 37.0°C. B) Oral temperature is a good way to estimate core temperature. C) Organs in the spinal cavity are at the shell temperature. D) Body temperature is highest in the afternoon.
Ion channels that open in response to depolarization are called ________.
A. voltage-gated channels B. potential-gated channels C. ion-gated channels D. stimulation-gated channels