Facilitated Diffusion and Active Transport

question 48

Multiple Choice

Facilitated diffusion and active transport

• A) both transport molecules into or out of a cell.
• B) are both not very specific as to which molecules are transported.
• C) both require a concentration gradient to function.
• D) both require use of energy in order to transport the molecules.
• E) both require a concentration gradient to function AND both require use of energy in order to transport the molecules.

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Definitions:

Bacteria

Microscopic single-celled organisms that inhabit virtually all environments on Earth, including soil, water, and living organisms, playing critical roles in various ecosystems.

Aquatic Life Zone

Areas in water bodies, such as lakes, rivers, and oceans, that support life, including various plants, animals, and microorganisms.

Level of Organization

Describes the hierarchy in biology from the atomic and molecular scale up through cells, tissues, organs, organisms, populations, communities, ecosystems, and the biosphere.

Ecosystem

A community of interacting organisms and their physical environment, interconnected through nutrient cycles and energy flows.