What Is the Purpose of Melanin

question 46

Multiple Choice

What is the purpose of melanin?

• A) To protect underlying tissues from sun exposure
• B) To protect the DNA in skin cells from sun exposure
• C) To toughen skin cells after sun exposure
• D) To provide nutrients to skin cells dried out from sun exposure

Know the correct sequence of applying sterile attire.

Recognize the concept of creating and maintaining a sterile field for aseptic procedures.

Identify appropriate personal protective equipment based on standard precautions for specific medical procedures.

Describe situations where surgical asepsis is required and commonly used in healthcare settings.

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Definitions:

Limiting Resource

An environmental resource that because it is scarce or unfavorable tends to restrict the ecological niche of an organism.

Genetic Mutations

Permanent alterations in the DNA sequence that makes up a gene, leading to variations in the phenotype of an organism, which can be beneficial, neutral, or harmful.

Precipitation

Any form of water, liquid or solid, that falls from the atmosphere and reaches the ground, including rain, snow, sleet, and hail.

Glucose

A simple sugar and an important energy source in living organisms, also one of the main products of photosynthesis.