Plasma membranes are extremely thin and fragile, requiring an extensive support network of fibrous proteins. This network is called the ____________

(a) cortex.
(b) attachment complex.
(c) cytoskeleton.
(d) spectrin.


(a)

Biology & Microbiology

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Which of the following numbered events represents the correct sequence of events of prokaryotic

translation initiation? 1) large ribosomal subunit binds to initiation complex 2) initiation tRNA binds small ribosomal subunit 3) initiation complex binds to ribosome recognition sequence on mRNA a. 1 ? 2 ? 3 b. 1 ? 3 ? 2 c. 2 ? 1 ? 3 d. 2 ? 3 ? 1 e. 3 ? 2 ? 1

Biology & Microbiology

The type of movement of molecules that is specific and passive, and which becomes saturated if all of the protein carriers are in use is

A. osmosis. B. exocytosis. C. endocytosis. D. active transport. E. facilitated diffusion.

Biology & Microbiology

________ lakes are nutrient-rich and tend to have large populations of algae.

A. Eutrophic B. Temperate C. Stratified D. Oligotrophic

Biology & Microbiology

Structures that are anatomically similar because ther are inherited from a common ancestor are called a(n) ____ structure.

Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology