Oxygen in the Blood Is Carried Most Efficiently by

question 111

Multiple Choice

Oxygen in the blood is carried most efficiently by

• A) combining with blood plasma
• B) combining with water in the blood
• C) combining with hemoglobin in blood cells
• D) moving up the diffusion gradient of oxygen in the lungs

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Definitions:

Phalanx

In anatomy, a phalanx is one of the bones in the fingers or toes, playing a crucial role in the mobility and function of the hands and feet.

Sarcomere

A sarcomere is the fundamental unit of muscle contraction, consisting of repeating segments of actin and myosin filaments in striated muscle fibers.

Myofibril

A basic rod-like unit of a muscle cell, consisting of filaments that slide to contract and produce movement.

Muscle Fiber

A single, elongated muscle cell that contracts to produce movement.