The helix structure on the right of the above figure
represents
a. DNA.
b. RNA.
c. lipid.
d. protein.
e. phospholipid.
Answer: b
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Microorganisms that live on dead and decaying organic material are known as
A) indigenous microflora. B) parasites. C) pathogens. D) saprophytes.
______________ is a negative emotional state generally associated with a blocked goal.
A. Frustration B. A hassle C. Stress D. Conflict
In response to injury, cell fragments called platelets get activated to induce clotting. Activated platelets release factors that can in turn bind to specific membrane receptors on nearby cells. What type of signaling would this be considered?
A. endocrine B. direct contact C. paracrine D. autocrine E. synaptic
A nutrition facts label from a fortified cereal states that in a single serving of cereal there is 8% of the percent daily value of the element phosphorous. The label also says that a single serving of cereal plus one-half cup of skim milk has 20% of the
percent daily value of phosphorus. Which of the following statements is false? A) A half-cup of skim milk contains 12% of the percent daily value of phosphorus. B) A half-cup of skim milk contains twice as much phosphorus as a serving of cereal. C) Eating five servings of cereal and two and a half cups of skim milk will give you 100% of the phosphorus that you need for one day. D) The amount of phosphorus in six servings of cereal is equal to the amount of phosphorus in two cups of skim milk.