To Select a Sentence with the Pointer, Press and Hold

question 57

Short Answer

To select a sentence with the pointer, press and hold ____________________ and then click the sentence.

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Definitions:

Cholesterol

A waxy, fat-like substance found in all cells of the body, necessary for the production of hormones, vitamin D, and bile acids.

Basal Body

Structure involved in the organization and anchorage of a cilium or flagellum. Structurally similar to a centriole; each is in the form of a cylinder composed of nine triplets of microtubules (9 × 3 structure).

Flagellum

A long, whiplike structure extending from certain cells and used in locomotion. (1) Eukaryote flagella consist of two central, single microtubules surrounded by nine double microtubules (9 + 2 structure), all covered by a plasma membrane. (2) Bacterial flagella are filaments rotated by special structures located in the plasma membrane and cell wall. (3) Archaea have a rotating appendage, an archaellum, for motility.

Micrometer

A precision measuring instrument capable of measuring dimensions to a very small fraction of a millimeter or inch.