The Plasma Membrane of a Cell and the Membrane Boundaries

question 52

Multiple Choice

The plasma membrane of a cell and the membrane boundaries of organelles,such as mitochondria and chloroplasts,serve similar functions.What is one of the main functions of the membranes of both cells and organelles?

• A) They keep reactants near each other to speed biological reactions.
• B) They allow external chemicals to diffuse freely into and out of the cell.
• C) They encourage cellular respiration at the membrane boundaries.
• D) They keep water out of the cell and organelle interiors.

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Definitions:

Replication

The process of duplicating an experiment or research study to confirm its findings in another context or sample.

Fluke

An unlikely coincidence or an accidental success, often seen as luck rather than the result of skill or planning.

Science

The systematic study of the structure and behavior of the physical and natural world through observation and experiment.

Informed Consent

A process ensuring that a participant is fully aware of the potential risks and benefits involved in a procedure or experiment before agreeing to partake.