Transport Across Membranes

Which of the following processes require energy?

• Osmosis

• Diffusion

• Active Transport

Which of the following processes involve the movement of water molecules?

• Osmosis

• Diffusion

• Active Transport

Which cell structure controls the entry and exit of molecules?

• Cell Wall

• Cell Membrane

• Nucleus

• Cytoplasm

Tags

NGSS.MS-LS1-2

What happens to an animal cell when it is placed in a solution with a high water concentration?

• The cell swells up and bursts.

• The cell shrivels up.

• The cell becomes plasmolysed.

• The cell becomes turgid.

What happens to a plant cell when it is placed in a solution with a high water concentration?

• The cell swells up and bursts.

• The cell shrivels up.

• The cell becomes plasmolysed.

• The cell becomes turgid.

The movement of water across the cell membrane from areas of high concentration of water to areas of low concentration of water

• endocytosis

• osmosis

• facilitated diffusion

• pinocytosis

The type of cell transport that DOES NOT require energy

• active transport

• passive transport

Molecules move against the concentration gradient from areas of low concentration to areas of high concentration during ....

• passive transport

• active transport

• facilitated diffusion

• osmosis

Permeable means

• things can pass through
• the concentration levels are different
• it is permanent
• things are stuck

What is the definition of  Selective Permeability?

• The movement of materials across the cell membrane that requires NO ENERGY from the cell.
  
• The movement of materials through (or across) the cell membrane
  
• The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
• The movement of molecules from an area of high concentration to a area of low concentration 
  

Tags

NGSS.MS-LS1-2