The energy needed to destabilize existing chemical bonds and start a chemical reaction is called
A. activation energy
B. potential energy
C. kinetic energy
D. free energy
Answer: A
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Which of the following represents the correct definition for targeted therapy?
a. therapies that treat the whole patient as the target instead of just the diseased area b. medicines designed to specifically target diseased cells without harming healthy cells c. chemotherapy that can have extreme side effects but often results in remission d. pharmaceutical interventions that result in palliative care but not a cure
Which of the following is incorrect about blood cells?
A. They include glial cells. B. They include leukocytes that are either granulocytes or agranulocytes. C. They develop from undifferentiated stem cells. D. After birth, they are produced in red bone marrow sites. E. They include erythrocytes that, when mature, lose their nuclei.
A glycerol with three fatty acids attached is referred to as a ________
A) prostaglandin B) nucleic acid C) steroid D) fat
Why is it necessary for the testes to be in the scrotum to function properly?
A) The scrotum keeps the testes at a cool temperature necessary for sperm production. B) The sperm are produced in the scrotal tissue and transferred to the testes to finish maturation. C) The scrotum contains alkaline fluids to nourish the sperm. D) The testes develop from scrotal tissues. E) The scrotum elevates the temperature of the testes, which increases sperm production.