Which Molecule's Activity Is Directly Regulated by the Presence and Binding

question 67

Multiple Choice

Which molecule's activity is directly regulated by the presence and binding of calcium?

• A) actin
• B) myosin
• C) tropomyosin
• D) troponin

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Definitions:

Reaction Rate

The reaction rate refers to the speed at which reactants are converted into products in a chemical reaction, influenced by factors such as concentration, temperature, and catalysts.

Concentration Effect

The influence on the rate of a chemical reaction of the concentration of reactants; generally, an increase in concentration leads to an increase in reaction rate.

Collision Theory

A theory that proposes chemical reactions occur when reactant molecules collide with sufficient energy and an appropriate orientation.

High Energy

A term used to describe processes, particles, or quantum states having relatively large amounts of kinetic or potential energy.