Which cell type is targeted by the human immunodeficiency virus (HIV)?
A. Helper T-lymphocyte
B. Memory B-lymphocyte
C. Cytotoxic T-lymphocyte
D. Natural killer cell
E. Plasma cell
Answer: A
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Which correctly describes an action of the hormone insulin?
A. It stimulates the breakdown of glycogen in the liver. B. It is required for the uptake and utilization of glucose by nervous tissue. C. It decreases the uptake of amino acids by muscle cells. D. It increases the uptake and utilization of glucose by muscle and adipose tissue cells. E. It inhibits the action of lipoprotein lipase in the capillaries of adipose tissue.
What is the largest of the cranial nerves and the most important sensory nerve of the face?
A. Facial nerve (VII) B. Trigeminal nerve (V) C. Abducens nerve (VI) D. Hypoglossal nerve (XII) E. Accessory nerve (XI)
Besides controlling metabolic rate, thyroid hormone has many functions. These include ________
A) stimulating production of sex cells (egg an sperm) and secondary sex characteristics B) regulation of growth and development, and maturation of the nervous system C) regulation of blood calcium, and release of calcium from bones D) enabling the body to resist both short-term and long-term stressors
Chemically, a radioactive isotope behaves the same way as the stable isotopes of a given element.
Answer the following statement true (T) or false (F)