Imagine that you are trying to make a homemade salad dressing and place several drops of olive oil into a container of water. You stir the solution, but the oil doesn't readily mix
Instead, you observe a glistening clump of oil floating on the surface. Explain what is happening at the molecular level. (Your answer should include the term hydrophobic.)
When oil molecules are together in water, their nonpolar surfaces are hydrophobic and nestle together. They are surrounded by water molecules that form hydrogen bonds with one another but not with the oil.
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Based on their response to a particular hormone from
the anterior pituitary, Sertoli cells of the male are most like __________ of the female. a. uterine cells b. oviducts c. ovarian follicles d. cervix cells e. the corpus luteum
Four of the five answers listed below are conditions related to diet. Select the exception
a. colon cancer b. kidney stones c. cardiovascular disorders d. obesity e. Alzheimer's disease
Which of the following are NOT one of Stuart Levy's guidelines for limiting the development of antibiotic resistance?
A) To avoid contracting food-borne bacteria, consumers should wash fruits and vegetables and avoid raw eggs and undercooked meat. B) Consumers should always use antibacterial soaps and cleaners, even when no perceived bacterial threat is present. C) Patients should not request antibiotics for viral infections, such as colds or flu. D) When they take antibiotics, patients should complete the course of treatment. E) To avoid spreading infections from patient to patient, physicians should wash their hands thoroughly between patients.
The term used to describe bacteria that are intermediate in shape between spherical and rod-shaped is ________.
A. bacilli B. vibrio C. coccobacilli D. cocci