Which type of cell is severely depressed in AIDS patients?
A. helper T-cells
B. suppressor T-cells
C. plasma cells
D. cytotoxic T-cells
E. B-cells
Answer: A
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The endocrine gland that produces melatonin is the
A. pancreas. B. pineal gland. C. parathyroid gland. D. adrenal gland. E. testis.
Which statement best reflects the main difference between the genomes of bacteria, archaea, and eukaryotes?
A. Eukaryotes have larger genomes than bacteria and archaea since they are larger cells. B. Pathogens have larger genomes than non-pathogenic microbes since genome size is generally dependent on the presence of pathogenicity islands. C. Eukaryotes have a high gene density compared to bacteria and archaea since their genes contain introns. D. Intracellular parasites have the smallest genomes since they have evolved to lack genes that code for the synthesis of essential metabolites.
Your friend Matti accidentally injected himself with double the correct dosage of insulin. He has collapsed. Quick! It's all up to you. What do you do?
A) Give him CPR. B) Inject him with thyroxine. C) Give him glucagon. D) Inject him with more insulin.
Which of the following processes is endergonic?
A) the burning of wood B) the synthesis of glucose from carbon dioxide and water C) the breakdown of glucose D) cellular respiration