Cell Transport

Osmosis

• State that exists when the concentration of a substance is the same throughout a space

• movement of particles from a region of higher concentration to a region of lower concentration

• substances made of amino acids that moves substances across a cell membrane

• substance that requires energy to transport sodium ions and potassium ions across a cell membrane

• movement of water across a selectively permeable membrane from a region of higher concentration to a region of lower concentration

Equilibrium

• State that exists when the concentration of a substance is the same throughout a space

• movement of particles from a region of higher concentration to a region of lower concentration

• substances made of amino acids that moves substances across a cell membrane

• substance that requires energy to transport sodium ions and potassium ions across a cell membrane

• movement of water across a selectively permeable membrane from a region of higher concentration to a region of lower concentration

Sodium-Potassium Pump

• State that exists when the concentration of a substance is the same throughout a space

• movement of particles from a region of higher concentration to a region of lower concentration

• substances made of amino acids that moves substances across a cell membrane

• substance that requires energy to transport sodium ions and potassium ions across a cell membrane

• movement of water across a selectively permeable membrane from a region of higher concentration to a region of lower concentration

Concentration Gradient

• State that exists when the concentration of a substance is the same throughout a space

• Difference in concentration of a substance across a distance

• substances made of amino acids that moves substances across a cell membrane

• substance that requires energy to transport sodium ions and potassium ions across a cell membrane

• movement of water across a selectively permeable membrane from a region of higher concentration to a region of lower concentration

Diffusion

• State that exists when the concentration of a substance is the same throughout a space

• movement of particles from a region of higher concentration to a region of lower concentration

• substances made of amino acids that moves substances across a cell membrane

• substance that requires energy to transport sodium ions and potassium ions across a cell membrane

• movement of water across a selectively permeable membrane from a region of higher concentration to a region of lower concentration

What is the difference between passive and active transport?

• Active Transport requires energy, passive transport does not

• Active transport requires carrier proteins and passive transport does not

• Active Transport moves substances down a concentration gradient and passive transport does not

• Active transprot moves substances against their concentration gradient passive moves them with the concentration gradient

• a

Why is osmosis important?

• to transport proteins across the cell membrane

• to aid the movement of large substances in and out of a cell

• to maintain the water balance in a cell

• All of the above

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Which substances pass directly through the cell membrane?

• small, nonpolar molecules

• small, polar molecules

• sugars

• amino acids

Carrier Protein

• State that exists when the concentration of a substance is the same throughout a space

• movement of particles from a region of higher concentration to a region of lower concentration

• substances made of amino acids that moves substances across a cell membrane

• substance that requires energy to transport sodium ions and potassium ions across a cell membrane

• movement of water across a selectively permeable membrane from a region of higher concentration to a region of lower concentration

What are the two types of cell transport?

• Passive and Active

• Active and Facilitated

• Passive and Facilitated

• None of the above