Which of the Following Statements About -Sheet Structures Is

question 81

Multiple Choice

Which of the following statements about -sheet structures is true?

• A) The individual strands of all -sheet structures are connected by turns, helices, or loops.
• B) All amino acid side chains in antiparallel and parallel -sheet structures point to one side of the sheet.
• C) Parallel -sheet structures have backbone amides that directly hydrogen bond between strands, whereas antiparallel -sheets have hydrogen bonds that are offset.
• D) All -sheet structures form a spiraling backbone chain.

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Definitions:

Consumption Tax

A tax on the spending on goods and services purchased by consumers.

Income

Regular revenue generated through employment or by making investments.

Goods and Services

Refers to the physical products and intangible benefits that fulfill the needs or wants of consumers.

Surplus

The condition when supply exceeds demand, leading to excess goods or services being available.