Cell Transport-Active, Passive

Where is there a low concentration of dye?

• at the bottom of cup
• in the color
• at the top of cup 
• no concentration gradient

Tags

NGSS.HS-PS1-5

Permeable means

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

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of

• Osmosis
• Diffusion
• Equilibrium

Passive transport requires no

• concentration gradients
• osmosis
• motion
• energy

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low.
• no movement 
• molecules move everywhere

Tags

NGSS.MS-PS1-4

The difference in the concentration of a substance from one location to another is called a/an

• diffusion
• osmosis
• concentration gradient
• passive transport

A molecule that diffuses down a concentration gradient goes from an area of ______ concentration into an area of ______ concentration.

• high, low
• low, high
• passive, active
• active, passive

Tags

NGSS.HS-PS1-5

Passive transport requires no

• concentration gradients

• osmosis

• motion

• energy

This is the simplest form of passive transport:

• osmosis
• diffusion
• facilitated diffusion
• endocytosis

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

Tags

NGSS.HS-LS1-3