Answer the question using the accompanying figure.Which structure vibrates and bends the sensory hairs?

a. 1
b. 2
c. 3
d. 4
e. 5


ANSWER: e

Biology & Microbiology

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Many root epidermal cells grow projections called ________, which extend from their surface and help in the absorption of water and minerals

A) rhizomes B) cilia C) root hairs D) villi E) rhizoids

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Proteins that distinguish among serovars of gram-negative bacteria are found in which structures?

a) Fimbriae b) Pili c) Flagella d) Axial filaments

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The core histones are small, basic proteins that have a globular domain at the C-terminus and a long, extended conformation at the N-terminus. Which of the following is not true of the N-terminal "tail" of these histones?

(a) It is subject to covalent modifications. (b) It extends out of the nucleosome core. (c) It binds to DNA in a sequence-specific manner. (d) It helps DNA pack tightly.

Biology & Microbiology