LS1.7 Basics - Cell Transport

What is the primary function of the cell membrane?

• To provide structural support to the cell

• To separate the cell from the external environment

• To produce energy for the cell

• To store genetic information

Tags

NGSS.MS-LS1-2

What is the composition of the cell membrane?

• A single layer of phospholipids

• Two layers of phospholipids

• A layer of proteins

• A layer of carbohydrates

Which property of the cell membrane allows it to be fluid?

• The presence of carbohydrates

• The structure and properties of lipids

• The presence of nucleic acids

• The presence of water

What is the role of protein molecules in the cell membrane?

• To store energy

• To provide genetic information

• To be embedded in the lipid bilayer and perform various functions

• To produce lipids

Which of the following is NOT a function of membrane proteins?

• Acting as channels

• Acting as pumps

• Storing genetic information

• Facilitating transport

What is homeostasis?

• The process of cell division

• A state of relatively constant internal physical and chemical conditions

• The production of energy in cells

• The synthesis of proteins

Tags

NGSS.HS-LS1-3

Which type of transport does NOT require cellular energy?

• Active transport

• Passive transport

• Endocytosis

• Exocytosis

Which of the following is an example of passive transport?

• Protein pump

• Endocytosis

• Simple diffusion

• Exocytosis

What is required for active transport to occur?

• A concentration gradient

• Cellular energy

• Water molecules

• Carbohydrates

Which process involves the bulk movement of materials into the cell?

• Simple diffusion

• Facilitated diffusion

• Endocytosis

• Osmosis