Which Chemicals Flow Most Freely Across a Cell Membrane

question 96

Multiple Choice

Which chemicals flow most freely across a cell membrane?

• A) proteins, fats, and carbohydrates
• B) positively charged ions
• C) water, oxygen, and carbon dioxide
• D) calcium and magnesium

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Definitions:

Focal Point

The center of interest or activity in a space or composition that attracts attention.

System 1

Fast, automatic, intuitive thinking, as contrasted with slower, more analytical System 2 thinking, as identified in psychological research.

Nonconscious

Pertaining to mental processes and reactions occurring outside of and not available to conscious awareness.

Automatic

Operating by itself with minimal human intervention, typically through pre-established instructions or programs.