As Humans Age, Their Connective Tissue, Rich in Collagen, Becomes

question 8

Multiple Choice

As humans age, their connective tissue, rich in collagen, becomes more rigid and brittle. What is the molecular cause of this change?

• A) Collagen fibrils change their degree of supercoiling over time.
• B) Many older adults have vitamin C deficiencies that result in collagen oxidation.
• C) As cells age, a variant of collagen is expressed.
• D) Crosslinks between collagen fibrils accumulate over time.
• E) UV damage to collagen accumulates over time.

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Definitions:

Machine Setup Costs

Expenses incurred to prepare machinery for production, including calibration, cleaning, and testing.

Batch Level

Refers to the classification in cost accounting that associates costs with specific batches of goods or services rather than with individual units or processes.

Unit-level Costs

Costs that are incurred for every unit produced, directly proportional to the production volume.

Product Cost

The total cost incurred to create a product, encompassing raw materials, labor, and overhead expenses.