Which of the Following Accurately Describes the Structure of Fibrous

question 14

Multiple Choice

Which of the following accurately describes the structure of fibrous proteins?

• A)Fibrous proteins usually contain a number of different domains with different structural motifs.
• B)Fibrous proteins are composed of an equal mixture of α helices and β sheets with interconnecting looped segments.
• C)Fibrous proteins have an extensive tertiary and quaternary structure that affects the strength and elasticity of each fiber.
• D)Fibrous proteins have a simple primary structure and very little secondary structure,resulting in long,thin fibers.
• E)Fibrous proteins are usually composed of either α helices or β sheets throughout the molecule,giving them a highly ordered,repetitive structure.

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Definitions:

Electrons

Subatomic particles with a negative electric charge, found in all atoms and acting as the primary carrier of electricity in solids.

Building Block

A fundamental component or base element used for constructing larger structures or systems.

Isotope

Variants of a particular chemical element which differ in neutron number, and consequently in nucleon number, but share the same number of protons.

Subatomic Particles

Particles that are smaller than an atom, including protons, neutrons, and electrons, which make up the atoms' structure.