Question

solutions play an important role in cells. cells are filled with cytoplasm, a jelly - like liquid solution. cytoplasm is composed of many solutes—like ions, sugars, and proteins—dissolved in water. these solutes are used in cell processes like protein synthesis and cellular respiration. the human body fluids surrounding body cells typically contain about the same solute concentration as cytoplasm does, so body cells generally remain at equilibrium. however, if a cell is surrounded by an extracellular solution that does not have the same concentration as the cytoplasm does, water molecules will pass through the cell membrane to the more concentrated solution. select the true statements. body cells are typically at equilibrium with their extracellular environment. solutes in cytoplasm can be used for cellular respiration. osmosis can only move water into, not out of, body cells. water is the solute in cytoplasm.

Explanation:

Step1: Analyze equilibrium statement

The text states human - body fluids surrounding body cells typically have the same solute concentration as cytoplasm, so body cells are generally at equilibrium.

Step2: Analyze solute - for - respiration statement

It is mentioned that solutes in cytoplasm like ions, sugars, and proteins are used in cell processes like cellular respiration.

Step3: Analyze osmosis statement (false)

Osmosis can move water both into and out of body cells depending on the solute concentration gradient, contrary to the statement that it can only move water into cells.

Step4: Analyze water - as - solute statement (false)

Water is the solvent in cytoplasm, not the solute. Solutes like ions, sugars, and proteins are dissolved in water.

Answer:

1. Body cells are typically at equilibrium with their extracellular environment.
2. Solutes in cytoplasm can be used for cellular respiration.