Osmoregulation

The picture below is an example of _________________.

• osmosis

• isotonic

• diffusion

• active transport

Osmosis is the movement of _____ across a membrane.

• food

• energy

• oxygen

• water

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

What is the definition of  Selective Permeability?

• The movement of materials across the cell membrane that requires NO ENERGY from the cell.

• The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.

• The movement of materials through (or across) the cell membrane

• The movement of molecules from an area of high concentration to a area of low concentration 

_______ regulates what enters and leaves a cell.

• Cell Membrane

• Nucleus

• Mitochondria

• Cytoplasm

Tags

NGSS.MS-LS1-2

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

• Shrink/Dehydrate

• Expand

• Stay the same

• Dance a little jig

Tags

NGSS.HS-LS1-3

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

• more water will move inside the cell

• more water will move outside the cell

• There will be no net movement of water, it moves into and out of the cell at the same time.

Tags

NGSS.HS-LS1-3

Where will the water go?

• Into the cell

• Equally in & out - it's isotonic

• Out of the cell

• There is no water

Tags

NGSS.HS-LS1-3

Where will the water go?

• Into the cell

• Out of the cell

• Equally in & out - it's isotonic

• There is no water

A blood cell is placed into the jar, as seen. Where will the water go?

• Into the cell

• Equally in & out - it's isotonic

• Out of the cell

• The water is a lie

Tags

NGSS.HS-LS1-3