Cell Transport

Diffusion & Facilitated Diffusion are both __________ transport.

• Passive

• Active

• Easy

• Free

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

• high to low

• low to high

• low to low

• high to high

Tags

NGSS.MS-LS1-2

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some

_____________ is the free movement of particles across the membrane with the concentration gradient

• diffusion

• facilitated diffusion

• active transport

• fusion

Diffusion is the natural movement of molecules from:

• Areas of low concentration to areas of high concentration

• Areas of high concentration to areas of low concentration

• Cold to hot environments

• Gaseous to liquid environments

What causes diffusion?

• The constant, random motion of molecules

• Magnetic attraction between atoms

• The nuclear forces that hold atoms together

• The tendency of atoms to form chemical bonds with one another

Tags

NGSS.MS-PS3-1

From fastest to slowest rate of diffusion, which of the following is in the correct sequence?

• Solids, liquids, gases

• Liquids, gases, solids

• Gases, liquids, solids

• Gases, solids, liquids

Why is diffusion so important in biology?

• It's the basic power source for most types of cells

• It allows substances to move across cell membranes

• It prevents toxins from entering our bodies

• Without diffusion, cell division could not take place

Tags

NGSS.HS-LS2-3

What does a 'region with high concentration' mean?

• An area with a SMALL number of particles

• An area with a LARGE number of particles

• An area with an UNEVEN number of particles

• An area with no particles

Tags

NGSS.HS-PS1-5

An increase in temperature does what to diffusion?

• Speeds it up

• Slows it down

• Nothing

• Stops it all together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4