Molecules that have both hydrophilic and hydrophobic components are referred to as ____

Fill in the blank with the appropriate word.


Answer Key: amphipathic

Biology & Microbiology

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The building blocks of DNA are called _________

A. amino acids B. codons C. nucleotides D. alleles

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Despite great diversity, all vertebrates share which basic homeostatic mechanism(s)?

a. digestion only b. metabolism only c. respiration only d. digestion and metabolism e. digestion, metabolism and respiration

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What is the correct order of events that occur during muscle contraction?

1) muscle shortens 2) calcium binds to troponin 3) filaments slide 4) T tubules are depolarized 5) acetylcholine is released 6) ATP molecule is split a. 4 ? 5 ? 2 ? 1 ? 3 ? 6 b. 4 ? 2 ? 5 ? 6 ? 1 ? 3 c. 5 ? 2 ? 4 ? 1 ? 6 ? 3 d. 6 ? 2 ? 5 ? 4 ? 3 ? 1 e. 5 ? 4 ? 2 ? 6 ? 3 ? 1

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Action potentials normally travel along an axon

A) toward the cell body. B) away from the cell body. C) either toward or away from the cell body.

Biology & Microbiology