Cholecalciferol, Formed by the Action of Sunlight on 7-Dehydrocholesterol in the Skin

question 11

Multiple Choice

Cholecalciferol, formed by the action of sunlight on 7-dehydrocholesterol in the skin, has to be converted to the fully active calcitriol before it can induce its physiological actions.The rate-limiting step in this process is catalyzed by an enzyme in:

• A)The lungs.
• B)The liver.
• C)The brain.
• D)The kidneys.
• E)The intestines.

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Definitions:

Inventory

A company's stock of goods or materials that are held for sale or used in production.

Rate Increases

An upward adjustment in prices, charges, or interest rates, typically within a business or economic context.

Process Costing

A costing method used in manufacturing where costs are assigned to a product based on the process it goes through in the production cycle.

Variable Cost

Costs that vary directly with the level of production or service, such as materials and labor used in production.