Understanding Cell Structures and Functions

What is the main function of the cell membrane?

• To produce energy for the cell

• To control what enters and leaves the cell

• To store genetic information

• To provide structure and support

Tags

NGSS.MS-LS1-2

Which term describes the movement of molecules from an area of high concentration to an area of low concentration?

• Osmosis

• Diffusion

• Active transport

• Endocytosis

What is the main difference between a cell wall and a cell membrane?

• Cell wall is found in animal cells only

• Cell membrane is rigid, cell wall is flexible

• Cell wall provides structure, cell membrane controls movement of substances

• Cell membrane is made of cellulose

Tags

NGSS.MS-LS1-2

Which structure is described as "selectively permeable"?

• Nucleus

• Cell wall

• Cell membrane

• Cytoplasm

Tags

NGSS.MS-LS1-2

What is osmosis?

• Movement of water across a semi-permeable membrane

• Movement of oxygen into the cell

• Movement of glucose out of the cell

• Movement of proteins into the nucleus

Tags

NGSS.MS-LS1-2

Which of the following best defines "adaptation"?

• A process of cell division

• A change in an organism that helps it survive in its environment

• The movement of molecules across a membrane

• The breakdown of food for energy

Tags

NGSS.MS-LS4-4

Natural selection is best described as:

• The process by which cells divide

• The process by which organisms better adapted to their environment survive and reproduce

• The movement of water through a membrane

• The process of making proteins

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

NGSS.MS-LS1-4

Which of the following is NOT a function of the cell wall?

• Providing support

• Protecting the cell

• Controlling what enters and leaves the cell

• Maintaining cell shape

A semi-permeable membrane allows:

• All substances to pass through

• Only water to pass through

• Only certain substances to pass through

• No substances to pass through

Which process requires energy from the cell to move substances across the membrane?

• Diffusion

• Osmosis

• Active transport

• Passive transport