Diffusion & Osmosis

Which statement is correct?

• In active transport; particles move left of the concentration gradient

• In active transport; particles move against the concentration gradient

• In active transport; particles move with the concentration gradient

• In active transport; particles move down the concentration gradient

___ is particle movement from an area of lower concentration to an area of higher concentration.

• Active transport

• Passive transport

What is the definition of OSMOSIS?

• Diffusion of water through a selectively permeable membrane

• Molecular structure that surrounds the cell and controls what enters and leaves the cell

• Movement of molecules across the cell membrane against the concentration gradient

• Movement of molecules across the cell membrane from an area of high concentration to low concentration

Why would the cell need energy to move molecules across the membrane?

• the molecule is going against the concentration gradient

• the molecule is to large to pass through the membrane

• the lipid membrane requires energy anytime something is moving across the membrane

• Passive Transport
• Active Transport

Which CELL contains MORE particles than are found in the surrounding solution?

• Left

• Center

• Right

The movement of particles from an area of high concentration to an area of low concentration

• active transport

• osmosis

• diffusion

• random movement

The movement of materials from an area of low concentration to an area of high concentration would require...

• glucose

• energy (ATP)

• fish

• chips

The cell below is in a _____________ solution.

• Hypertonic
• Hypotonic
• Isotonic

Tags

NGSS.HS-LS1-3

What type of transport are endocytosis and exocytosis?

• Passive Transport

• Active Transport