Oxygen,carbon Dioxide,as Well as Other Small Molecules,cross the Plasma Membrane

question 49

Multiple Choice

Oxygen,carbon dioxide,as well as other small molecules,cross the plasma membrane through the process(es) of

• A) diffusion.
• B) osmosis.
• C) endocytosis and exocytosis.
• D) active transport.
• E) facilitated diffusion.

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Definitions:

Circulatory System

The body's system responsible for the movement of blood and lymph, carrying nutrients and oxygen to cells while removing waste products.

Oxygen

A chemical element essential for life, commonly found in the Earth's atmosphere, and a key component of water and organic compounds.

Upper Respiratory System

The part of the respiratory system that includes the nose, nasal passages, pharynx, and larynx, involved in breathing and speech.

Paranasal Sinuses

Air-filled spaces around the nasal cavity that help warm, moisten, and filter the air breathed in through the nose.