Understanding Solutions and Cell Behavior

What is the maximum duration humans can survive without fluids?

• 5 days

• 7 days

• 1 day

• 3 days

What type of solutions have an equal salt concentration to cells?

• Isotonic

• Hypotonic

• Hypertonic

• Aquaporin

What role do aquaporins play in cell membranes?

• Transport salt

• Transport proteins

• Block all molecules

• Facilitate water movement

What is the process called when water moves from higher to lower concentration?

• Osmosis

• Filtration

• Active transport

• Diffusion

Why can't salt molecules pass through the cell membrane?

• They are not attracted to water

• They are too large

• Because of aquaporins

• They are repelled by the membrane

What is plasmolysis?

• Cell division

• Cell shrinking

• Cell bursting

• Cell expansion

What happens to a cell in a hypertonic solution?

• It bursts

• It expands

• It shrinks

• It remains the same

What is the outcome for cells in a hypotonic solution?

• They may burst

• They shrink

• They remain the same

• They become rigid

What is dynamic equilibrium in the context of cells?

• Cells rapidly dividing

• Cells moving

• Cells dying

• Equal water movement in and out

Why is drinking sea water dangerous?

• It's hypotonic to body cells

• It's isotonic to body cells

• It contains harmful bacteria

• It's hypertonic to body cells