Exploring Passive Cell Transport Mechanisms

What does passive transport in cells mean?

• Transport requiring energy

• Transport without using ATP

• Transport of only water molecules

• Active movement against concentration gradient

What does 'concentration gradient' refer to?

• Movement of molecules in water

• A uniform distribution of molecules

• The difference in molecule concentration across a space

• The process of reaching equilibrium

What is diffusion?

• Transfer of energy from one cell to another

• Movement from high to low concentration

• Movement of water through a semi-permeable membrane

• Movement from low to high concentration

What analogy is used to explain diffusion?

• A cat resting

• Spraying Febreze in a classroom

• Pouring water into a glass

• An athlete running

What is osmosis specifically concerned with?

• The active transport of ions

• The movement of solutes

• The diffusion of any molecule

• The diffusion of water across a membrane

What does a hypertonic solution mean for a cell?

• Cell gains water and may burst

• Cell loses water and may shrivel

• Cell actively transports solutes

• No change in cell volume

What is the effect of a hypotonic solution on a cell?

• Cell actively pumps out water

• Cell swells or may burst

• Cell remains the same

• Cell shrivels

What does 'salt sucks' imply in the context of cell transport?

• Salt repels water molecules

• Salt actively transports water

• Water moves towards higher salt concentration

• Salt destroys cell membranes

Why is an isotonic solution important for IV fluids?

• It dehydrates the cells

• It allows for active transport

• It prevents cells from changing volume

• It causes cells to expand

What happens to a cell in a hypertonic solution?

• It shrivels due to water loss

• It expands due to water intake

• It remains the same size

• It divides into two cells