Cigarette smoke can affect the white blood cells that reside in our lungs, whose function is to
A) prevent emphysema.
B) engulf foreign particles.
C) enhance oxygen and carbon dioxide exchange.
D) maintain appropriate pH and moisture levels within the lungs.
Answer: B
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The Hawaiian Islands have formed as the result of ________
a. hot spots forming b. faults forming c. oceanic ridges forming d. ocean trenches forming e. boundaries forming
Assume that a plasmid (circular) is 3200 base pairs in length and has restriction sites at the following locations: 400, 700, 1400, 2600. Give the expected sizes of the restriction fragments following complete digestion
A) 700, 400, 1400, 2600 B) 300, 700, 1000, 1200 C) 400, 800, 1000 (2 of these) D) 300, 700, 2200 E) 400, 1200, 1600
Translation is where:
A. -ssRNA is used by ribosomes to produce a protein B. -dsRNA is used by ribosomes to produce a protein C. mRNA is used by ribosomes to produce a protein D. mDNA is used by ribosomes to produce a protein E. +dsRNA is used by ribosomes to produce a protein
Reactions that are both catabolic and anabolic are amphibolic
Indicate whether the statement is true or false