You Are a Scientist Observing a Membrane Through Which Water

question 3

Multiple Choice

You are a scientist observing a membrane through which water and some small hydrophobic molecules can freely pass along a concentration gradient from high to low.However,some sugar molecules are too large to pass through the membrane either way without the assistance of passive transport proteins.Additionally,small Na⁺ ions and some proteins can pass through the membrane against the concentration gradient,but both require the assistance of active transport proteins.What general type of membrane are you observing?

• A)impermeable
• B)inpenetrable
• C)semipermeable
• D)completely permeable

---

Definitions:

Aspirin

A medication used to reduce pain, fever, inflammation, and, at lower doses, to prevent blood clots.

Theophylline Toxicity

A potentially dangerous condition resulting from excessively high levels of theophylline, a drug primarily used to treat respiratory diseases like asthma, leading to symptoms like nausea, diarrhea, seizures, and arrhythmias.

Biotransformation

The chemical alteration of substances within the body, such as the breakdown of medications by the liver into forms that can be eliminated.

Renal Insufficiency

A medical condition where the kidneys are unable to function adequately, resulting in the accumulation of waste products and fluids in the body.