Cell Environments Worksheet

Cell Environments: Interactions and Transport

Read each question carefully and provide concise, accurate answers. For multiple-choice questions, select the best option. For short answer and fill-in-the-blank questions, write your responses in the space provided.

1. Which of the following best describes the primary function of the cell membrane?

2. A red blood cell placed in a hypotonic solution will likely undergo which process?

1. The movement of water across a selectively permeable membrane from an area of high water concentration to an area of low water concentration is called  .

2. Active transport requires energy, usually in the form of  , to move substances against their concentration gradient.

3. The   model describes the cell membrane as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.

1. Briefly explain the difference between passive transport and active transport, providing an example of each.

2. Describe the structure of the cell membrane, highlighting the roles of phospholipids and proteins.

1. Facilitated diffusion requires ATP to move molecules across the cell membrane.

2. A plant cell in an isotonic solution will become turgid.

Match each term with its correct definition.