Cell Transport Test Review

Which statement describes diffusion?

• It takes a lot of energy
• There is no movement of particles

• Particles move from a low percentage to a higher percentage, until they are all in one place

• Particles move from a high percentage to a lower percentage, until they are evenly spread out

A semi-permeable membrane will:

• Let some substances through, but not all substances

• Let all substances through
• Let no substances through
• Shrink and then break

What is a cell membrane mostly made from?

• water
• cytoplasm

• phospholipids

• mitochondria

Tags

NGSS.MS-LS1-2

When a substance moves into or out of the cell WITHOUT the cell having to use any energy, it's called:

• passive transport
• active transport
• movement against the concentration gradient
• endocytosis

What is osmosis?

• The diffusion of proteins through a membrane

• The diffusion of salt through a membrane

• The diffusion of water through a membrane
• Movement from a place of low % to a place of higher %

Equilibrium is when:

• the percentages of molecules are equal on both sides of a membrane
• the molecules are all on one side of a membrane

• the molecules change shape

• the molecules freeze

If you put a drop of food coloring in a cup of water, the coloring will spread through all of the water. This is

• Diffusion
• Endocytosis
• Exocytosis
• active transport

There is 80% water inside a cell and 20% water in the liquid outside the cell. Which way will the water move?

• Into the cell
• Out of the cell
• Already at equilibrium

There is 20% water inside a cell and 20% water in the liquid outside the cell. Which way will the water move?

• Into the cell
• Out of the cell
• Already at equilibrium

Why shouldn't you drink salty ocean water?

• Drinking the saltwater will cause you to hold on to too much water, causing you to become over-hydrated
• Drinking the saltwater will cause you to release too much water, causing you to become dehydrated
• Drinking the saltwater will be fine as long you drink it really fast

• Saltwater is too sandy