Cell Membrane Quiz

What are the main components of the cell membrane?

• carbohydrates, nucleic acids, and lipids

• calcium, potassium, and sodium

• sugar, salt, and water

• phospholipids, proteins, and cholesterol

Describe the fluid mosaic model of the cell membrane.

• The fluid mosaic model describes the cell membrane as a rigid structure with no movement

• The fluid mosaic model describes the cell membrane as a static structure with no embedded molecules

• The fluid mosaic model describes the cell membrane as a single layer of protein with no lipids

• The fluid mosaic model describes the cell membrane as a dynamic structure composed of a lipid bilayer with embedded proteins and other molecules, giving it a fluid and mosaic-like appearance.

What is the process where substances move across the membrane from an area of lower concentration to higher concentration with use of energy called?

• Osmosis

• Diffusion

• Active Transport

• Tonicity

Tags

NGSS.HS-LS2-3

What is the function of the cell membrane ?

• Stores genetic information

• Regulates the cell's metabolism

• Assists in cell communication

• Control the movement of materials in and out of the cell

Explain the role of the role of proteins in the cell membrane

• Acting as a barrier to all communication between cells

• Helps maintain the flexibility of the cell structure

• Allowing the passage of large molecules by acting as carriers or making channels for them to pass through

• Serving as a storage unit for excess signaling molecules

The diffusion of water across a selectively permeable membrane is called ________.

• Passive Transport

• Osmosis

• FAcitated diffusion

• Osmotic Pressure

What is meant by selective permeability of the cell membrane?

• Ability of the cell membrane to allow certain substances to pass through while restricting the passage of others

• Inability of the cell membrane to allow any substances to pass through

• Ability of the cell membrane to allow all substances to pass through without restriction

• The color of the cell membrane

Tags

NGSS.HS-LS1-3

Give an example of a substance that can easily pass through the cell membrane.

• Fats and carbohydrate

• large molecules like glycoproteins

• Water, oxygen, and carbon dioxide

• Hormones

Describe the process of passive transport across the cell membrane.

• Movement of molecules from low concentration to high concentration

• Movement of molecules from inside the cell to outside the cell

• Movement of molecules through active transport

• Movement of molecules from high concentration to low concentration

Identify the types of solution correctly!

1- HYPOTONIC

2) HYPERTONIC

3)ISOTONIC

( Mark as 1/2/3 in the picture)

Tags

NGSS.HS-LS1-3