Osmosis and Diffusion

What process occurs when WATER diffuses across a membrane?

• endocytosis
• mitosis
• osmosis
• nuclear fission 

Which diagram best shows the end result of diffusion?

• F
• G
• H
• J

Tags

NGSS.MS-PS1-1

Why is diffusion and osmosis important to cells?

• It allows them to take in materials without using energy.
• It allows them to reproduce.
• It allows them to absorb sunlight.
• It allows cells to use all energy.

Tags

NGSS.MS-LS1-2

The picture  is an example of _________________.

• isotonic
• diffusion
• osmosis
• active transport

What does selectively-permeable mean?

• The cell controls what passes in and out of the cell
• Nothing gets through
• The cell lets only large substances through

Which way will the water molecules move during osmosis?

• 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.

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

During osmosis

• water moves from high to low concentration
• large or oddly shaped molecules move across a cell membrane
• water moves when energy is used
• proteins are built

A person would never have pure water put into their veins in a hospital because their cells would...

• Shrink/Dehydrate
• Expand

Tags

NGSS.HS-LS1-3

If there is 5 percent water inside a cell and 5 percent water outside a cell

• more water will move inside the cell
• more water will move outside the cell
• There will be no movement of water cells

Tags

NGSS.HS-LS1-3