Bio - Unit 2, Chapter 7, Lesson 4

What is the cell membrane made of?

• Two layers of lipid molecules

• Three layers of protein molecules

• One layer of carbohydrate molecules

• Four layers of nucleic acids

What is the primary function of the cell membrane in plants?

• It produces energy for the cell.

• It regulates what enters and leaves the cell.

• It stores genetic information.

• It synthesizes proteins.

What is the cell membrane made up of?

• Carbohydrate chains and lipids.

• Nucleic acids and proteins.

• A phospholipid bilayer with embedded proteins.

• Cellulose and starch.

What is one of the primary functions of the cell membrane?

• To produce energy for the cell

• To regulate the transport of substances

• To synthesize proteins

• To store genetic information

Which of the following is a role of the cell membrane in communication?

• Isolating the cytoplasm

• Synthesizing DNA

• Communicating with other cells

• Producing enzymes

How does the cell membrane contribute to cell identification?

• By storing nutrients

• By producing hormones

• By identification

• By generating ATP

What is the function of the cell wall in plant and bacterial cells?

• Provides energy to the cell

• Gives structure and extra protection

• Transports nutrients

• Produces proteins

What is a centriole?

• A type of chromosome

• An organelle that plays a role in cell division and is made of microtubules

• A type of cell membrane

• A form of DNA

What is the function of a channel protein in the cell membrane?

• It allows the transport of specific substances across a cell membrane.

• It stores energy for the cell.

• It produces proteins for the cell.

• It provides structural support to the cell.

What is the primary function of a chloroplast in plant cells?

• Storage of nutrients

• Photosynthesis

• Cellular respiration

• Protein synthesis