An example of a nonspecific chemical barrier to infection would be
A) unbroken skin
B) lysozyme in saliva
C) cilia in respiratory tract
D) all of these
Answer: B) lysozyme in saliva
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Organisms grown with CO2 as its sole carbon source must have energy in the form of ATP as well as reducing power
Indicate whether the statement is true or false.
Which of the following nutrient types will not enter capillaries immediately after crossing the small intestine epithelium (i.e., they take a different path)?
A. carbohydrates B. lipids C. protein D. nucleic acids E. vitamin D
Which of the following are the closest ancestors of humans (genus Homo)?
A. chimpanzees B. australopithecines C. prosimians D. gibbons
Janey has been taking antibiotics for 10 days to counter a urinary tract infection caused by E. coli. Her UTI is eliminated, but two weeks later she has a vaginal itch. What is the likely cause?
A. Clostridium difficile B. Escherichia coli C. Lactobacillus acidophilus D. Staphylococcus aureus E. Candida albicans