The most effective antiseptic agent against blood spills and therefore the antiseptic of choice in laboratories where these agents are likely found is:
a. 70% ethanol.
b. phenol compound.
c. absolute ethanol.
d. 10% bleach.
D
Bleach is an effective antiseptic agent against hepatitis B virus (HBV), human immunodeficiency virus (HIV), and blood spills and is the antiseptic of choice in many laboratories.
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Imagine that a woman is in the final week of her pregnancy. Her doctor gives her an injection of oxytocin. The likely result of this is that the pregnant woman would _____
A) undergo the loss of oxytocin receptors from her uterine smooth muscle cells B) stop secreting prostaglandins from the placenta C) undergo vigorous contractions of her uterine muscles D) increase the synthesis and secretion of progesterone E) be prevented from lactation
The phase of mitosis in which the nuclear envelope breaks into small pieces is
A. D, which is anaphase. B. B, which is prometaphase. C. B, which is prophase. D. C, which is metaphase. E. C, which is telophase.
The net result of glycolysis is ____
a. 2 NADH, 2 ATP, and 2 pyruvates b. 8 NADH, 2 ATP, and 6 carbon dioxides c. 36 ATP d. 2 NADH, 4 ATP, and 2 pyruvates e. 2 NADH, 2 ATP, and 2 acetyl-CoAs
Which of these white blood cells are phagocytic?
A. neutrophils B. macrophages C. lymphocytes D. both neutrophils and macrophages E. both lymphocytes and macrophages