The Same Hormone Has Considerably Different Effects in Different Species

question 44

Multiple Choice

The same hormone has considerably different effects in different species. The hormone thyroxin in humans stimulates metabolism, but in frogs it induces metamorphosis from tadpole to adult frog. This indicates that

• A) the target tissues have evolved different responses.
• B) metamorphosis is caused by a change in body metabolism.
• C) the organisms have absolutely no evolutionary relationship.
• D) the chemical composition of the hormone is actually slightly different.
• E) the origin of the hormone makes a difference in the effect the hormone has on target tissues.

Comprehend the role of culture in shaping conformity and group behavior.

Identify and understand organizational politics and its effects.

Understand the role of power and political tactics within an organization.

Recognize the importance of building trust and limiting political behavior in an organization.

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Definitions:

Carboxyhemoglobin

A complex of carbon monoxide and hemoglobin, formed by the binding of carbon monoxide to hemoglobin, which impairs oxygen delivery.

Carbaminohemoglobin

A compound formed when carbon dioxide combines with hemoglobin in the blood, facilitating the transport of CO2 from body tissues to the lungs.

Polypeptide Chains

Long chains of amino acids linked by peptide bonds, forming part of the structure of proteins.

Heme Group

A component of hemoglobin in red blood cells, responsible for the transport of oxygen.