The Skin Is the Body's Largest Organ

question 33

Multiple Choice

The skin is the body's largest organ. It's made up of many different types of cells. Oils, produced by the sebaceous glands, prevent the skin from drying and splitting. The pigment melanin, produced by melanocytes in the epidermis, protects the skin from the harmful effects of ultraviolet radiation. Sweat, released through ducts to the skin surface, helps to cool the body. The types of cells that produce these compounds have different numbers of specific organelles, depending on their function.
-Melanocytes use many enzymes to produce melanin. Based on their function, you would expect melanocytes in the skin to have a higher than usual number of

• A) lysosomes.
• B) chloroplasts.
• C) ribosomes.
• D) microtubules.

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Definitions:

Fixity of Production

The characteristic of production processes where inputs and outputs are fixed in the short term, allowing little flexibility.

Average Costs

is the total costs divided by the quantity produced, used to determine the cost of producing one unit of goods or services.

Average Cost

The aggregate expense of manufacturing, when divided by the quantity of items made.

Marginal Costs

The price of generating one more unit of a product or service.