ATP
What is ATP?
Energy
The main role of the cell membrane
Allow things to enter and leave the cell.
What process would cause an animal cell to burst if it were placed in distilled water?
Osmosis
What does Homeostasis do?
Maintains stable levels both inside and outside the cell.
True or False. Diffusion uses ATP.
False
Does active transport require ATP?
yes.
What are the "little guys with a head and tails called" in the cell membrane structure?
Phospholipid
Diffusion of water across the cell membrane is called what?
Osmosis
Simple Diffusion. The simple is diffusion means what?
SMALL
What type of transport is diffusion classified as?
Passive transport
Am I using ATP if i am going WITH the concentration gradient?
No ATP
SEMI-Permeable
Which process causes molecules to move from high to low concentration without energy?
Passive transport
Why don’t onion cells burst in water, but red blood cells do?
Onion cells have a cell wall for protection
Does Osmosis go from a high to a low concentration? Is it Passive or Active?
YES. PASSIVE.
Active transport involves moving ____ their concentration gradients. Active transport _____ require energy (ATP).
AGAINST. DOES.
A student places a raw egg in vinegar and then in sugar water. The egg shrinks. Why?
Water moves out due to osmosis.
Which of the following processes could cause an animal cell to burst in distilled water?
Osmosis
What causes a vacuole (Balloon) in freshwater organisms to fill with water?
Water is more concentrated (Greater) outside the cell than inside.
What is the ONLY transport that goes from a low to high concentration?
ACTIVE TRANSPORT.
Moving which of these substances across the cell membrane requires energy from ATP?
2
Why did iodine enter dialysis tubing but starch did not?
Tubing is semipermeable
Compare passive and active transport. Which one requires energy (ATP)?
Active transport
TRUE OR FALSE. Active, simple diffusion, facilitated diffusion, osmosis all move molecules WITH ATP.
FALSE. they ALL MOVE molecules, BUT only active uses ATP to do so.
What is a high to low concentration example?
Passive transport. Osmosis. Facilitated Diffusion. Simple Diffusion.