Mechanisms That Move Substances Across Membranes Against Concentration Gradients Are

question 97

Multiple Choice

Mechanisms that move substances across membranes against concentration gradients are

• A) calcium ions in the calcium pump.
• B) membrane pumps.
• C) ATP molecules.
• D) passive transport.
• E) facilitated diffusion.

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Definitions:

Intravenous (IV) Infusion

The administration of liquid substances directly into a vein as a therapeutic treatment.

Infusion Pump

A medical device that delivers fluids, such as nutrients and medications, into a patient's body in controlled amounts.

Eye Contact

The act of looking directly into another person's eyes, which can be a form of communication or indicate attention.

Urinary Retention

The inability to completely or partially empty the bladder, which may cause discomfort and other problems.