At Middle Age,one Can Expect

question 153

Multiple Choice

At middle age,one can expect

• A) both crystallized and fluid intelligences to decline rapidly.
• B) both crystallized and fluid intelligences to increase with a slight decline in both with advanced age.
• C) fluid intelligence to decline rapidly and crystallized intelligence to increase or decline very little.
• D) crystallized intelligence to decline rapidly and fluid intelligence to increase or decline very little.

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Definitions:

Cytoskeleton

The dynamic internal network of protein fibers that includes microfilaments, intermediate filaments, and microtubules.

Microtubules

Cylindrical structures found in cells, made of tubulin, that play roles in cell shape, organization, and movement.

Middle Lamella

The layer composed of pectin polysaccharides that serves to cement together the primary cell walls of adjacent plant cells.

Primary Walls

The thin, flexible and extensible layer of the cell wall that is first formed when a plant cell is growing, made mainly of cellulose and other polysaccharides.