The Action of Ca²⁺ in a Second Messenger Scheme

question 21

Multiple Choice

The action of Ca²⁺ in a second messenger scheme

• A) involves the calcium-binding protein calmodulin as the actual second messenger
• B) relies entirely on intercellular reservoirs of Ca²⁺ in the endoplasmic reticulum
• C) does not involve the G protein
• D) produces sustained responses by controlling the flow of Ca²⁺ into the cell

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Definitions:

Weak Axiom

In consumer theory, it refers to the consistency of consumer choice behavior under the assumption of non-increasing preferences.

Profit-maximizing Behavior

An economic principle where businesses seek to achieve the highest possible profit from their operations.

Short-run Production Function

The short-run production function describes the relationship between input and output levels when at least one input (like capital) is fixed and cannot be changed immediately.

Variable Factor

An input in the production process that can be changed in the short term to influence output.