Passive Transport and Osmosis

Passive transport is called "passive" because it occurs WITHOUT

• cause.
• energy.
• a concentration gradient.
• a cell wall.

Tags

NGSS.MS-LS2-3

Osmosis is the diffusion of _____ across a membrane

• glucose
• NaCl
• proteins
• water

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

• True
• False

What does semi-permeable mean?

• Only some things can move through membrane
• Nothing can move through membrane
• Reagan can move through membrane
• Membrane connot be moved through

What is the difference between active and passive transport?

• Active does not need energy and passive uses ATP (energy)
• Active uses ATP (energy) and passive does not need energy
• Active stores transport proteins and passive releases 
• Active uses hormones and passive does not 

What process occurs when WATER diffuses across a membrane?

• endocytosis
• mitosis
• osmosis
• nuclear fission 

Which way will the water molecules move during osmosis Hint those  mickey mouse molecules are water not solutes?

• Out of the cell, so the cell shrinks.
• Out of the cell, so the cell swells.
• Into the cell, so the cell shrinks.
• Into the cell, so the cell swells.

Movement of particles from high to low concentration. 

• Passive Transport
• Active Transport

Osmosis is a form of ______________. 

• Passive Transport
• Active Transport

Solutes move with the concentration gradient, therefore no energy is used. 

• Passive Transport
• Active Transport