How Is Oxygen Able to Move in the Direction Indicated

question 24

Multiple Choice

How is oxygen able to move in the direction indicated in this diagram?

• A) Partial pressure of oxygen is lower in the blood
• B) Partial pressure of oxygen is higher in the blood
• C) The cells of the lungs are actively transporting oxygen
• D) The cells of the blood are actively transporting oxygen

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Definitions:

Stratum Lucidum

A thin, clear layer of dead skin cells found in the epidermis, specifically in regions of thick skin like the palms and soles.

Stratum Basale

The deepest layer of the epidermis where cell division occurs, responsible for generating new skin cells.

Thick Skin

The type of skin found on areas of the body subjected to friction or pressure, characterized by a thicker epidermis, typically on the palms and soles.

Keratinocytes

The main type of cell found in the epidermis, responsible for the formation of keratin, a protein that gives skin its strength and flexibility.