Oxygen Moving Through the Plasma Membrane Down Its Concentration Gradient

question 57

Multiple Choice

Oxygen moving through the plasma membrane down its concentration gradient is an example of:

• A)simple diffusion.
• B)active transport.
• C)facilitated diffusion.
• D)osmosis.

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Definitions:

Zygote

The cell formed by the fusion of two gametes; the earliest stage of embryonic development in sexually reproducing organisms.

Endosperm

A tissue produced inside the seeds of most flowering plants following fertilization, which acts as a food store for the developing embryo.

Oxidative Tissue Damage

Tissue impairment caused by reactive oxygen species leading to cellular dysfunction and disease.

Epicatechin

A type of flavonoid with antioxidant properties found in various foods like dark chocolate and green tea, associated with health benefits such as improved heart health.