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18 Questions

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Cell Membrane Transport

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Questions and Answers

What is the term for a solution with a low concentration of solutes?

Isotonic

Low osmolarity (correct)

Hypotonic

Hypertonic

What happens to cells in a hypotonic solution?

They shrink due to water leaving the cell

They swell due to water entering the cell (correct)

They burst due to excessive water entry

They remain the same size

What is the purpose of NaCl in rehydration remedies?

To provide energy to the body

To prevent water intoxication (correct)

To promote active transport

To prevent dehydration

What is the term for a solution with a high concentration of solutes?

Hypertonic Signup and view all the answers

What happens to cells in a hypertonic solution?

They shrink due to water leaving the cell Signup and view all the answers

Why can drinking too much water without balancing it with salt intake be problematic?

It can cause cells to swell, leading to cerebral edema Signup and view all the answers

What is the main function of carrier proteins in a cell?

To facilitate the transport of specific molecules across the cell membrane Signup and view all the answers

Which type of transport requires energy from ATP?

Active transport Signup and view all the answers

What is the term for the 'tug of war' between the inside and outside of a cell, where water moves in or out to balance the solute concentration?

Tonicity Signup and view all the answers

Which of the following is an example of a channel protein?

Potassium channel Signup and view all the answers

What happens to a cell in a hypotonic solution?

It swells due to water gain Signup and view all the answers

What is the term for the measure of the number of particles in a solution?

Osmolarity Signup and view all the answers

What is the main cause of hydrostatic pressure?

The weight and motion of fluid Signup and view all the answers

What is the function of hydrostatic pressure in the body?

To push blood through the vessels Signup and view all the answers

What happens when osmotic pressure is unequal and Doris is given hypertonic fluid?

Water is drawn out of the cells Signup and view all the answers

What is the main function of osmotic pressure in the body?

To regulate the movement of water between cells and the bloodstream Signup and view all the answers

What happens when osmotic pressure is unequal and Doris is given hypotonic fluid?

Water is drawn into the cells Signup and view all the answers

What is the analogy for osmotic pressure?

The pull of a sponge Signup and view all the answers