A physiologic solution contains glucose but does not conduct electricity as strongly as a salt solution. Which explanation best accounts for the difference?

Which of the following best describes a chemical reaction that releases energy?

Which of the following best describes the fluid mosaic model?

An epithelial cell is placed in a hypertonic environment. Which change best describes the direction of water movement and the expected cell outcome?

A medication is designed to act on smooth muscle in the wall of the small intestine. Which level of organization is the most immediate target of the drug’s action?

Buffers prevent any change in pH when acids or bases are added to a solution.

A clinician requests a transverse section through the abdomen. Which outcome best describes what a transverse section provides?

A solute reaches equilibrium across a membrane. Which statement best describes what equilibrium means?

A patient has swelling localized to the ankle. Compared with systemic edema, which explanation best supports that this is a regional problem rather than a whole-body homeostasis failure?

A patient inhales a gas that diffuses directly across the alveolar membrane without binding to a transporter. Which mechanism best explains this movement?