Atoms or clusters of atoms that are covalently bonded to carbon and influence the behavior of organic compounds are
known as ____.
a. ions
b. anhydrides
c. antioxidants
d. acids
e. functional groups
ANSWER: e
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Which is a characteristic of parasites?
a. They are indiscriminate in their choice of host. b. They inflict serious injury and kill their host. c. Some reside inside their host, whereas others live outside their host. d. Parasitic hosts are always animals. e. They rarely harm their host.
In humans, what percent of the genome is devoted to the exons that encode proteins?
A. about 50% B. about 35% C. about 75% D. about 20% E. about 1.5%
You have been given a plant sample and asked to identify a specific tissue. Upon investigation, you find the cells are all long in length and some of them have small pores. They all contain fluid. You test the fluid using various biochemical tests and discover the fluid contains an abundance of disaccharides. What type of tissue are you looking at?
A. sclerenchyma B. xylem C. meristematic D. root hair cells E. phloem
How does a macrophage (immune cell) consume a bacteria?
A. exocytosis B. pinocytosis C. receptor-mediated endocytosis D. endocytosis E. phagocytosis