Which genus is resident biota of the mouth, large intestine, and within the vagina from puberty to menopause?
A. Treponema
B. Lactobacillus
C. Haemophilus
D. Clostridium
E. Escherichia
Answer: B
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The lipid layer that forms the foundation of cell membranes is primarily composed of molecules called __________
A. phospholipids B. fats C. proteins D. carbohydrates
Which of the following is not part of standard precautions?
A) handwashing between patient contacts B) placing a patient in a private room having negative air pressure C) properly disposing of needles, scalpels, and other sharps D) wearing gloves, masks, eye protection, and gowns when appropriate to do so
Movement of substances that requires the
expenditure of ATP molecules is
a. facilitated diffusion. b. simple diffusion. c. active transport. d. osmosis. e. bulk flow.
Where in a plant cell is chlorophyll found?
a. on the outer chloroplast membrane b. inside the mitochondria c. in the stroma d. in the thylakoid membrane e. in the plant cell wall