Cell Transport Biology

A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?

• The swollen gums have absorbed the saltwater solution.

• The saltwater solution lowers the temperature of the water in the gums.

• The salt in the solution has moved against the concentration gradient.

• The water in the gums has moved out due to the high concentration of salt in the solution. 

Tags

NGSS.MS-PS1-2

In pure water, a red blood cell from an animal will swell and burst, but a leaf cell from a plant will not. Which structure in the leaf cell is responsible for this difference?

• cell membrane

• cell wall

• mitochondrion

• nucleus

Tags

NGSS.MS-LS1-2

A red onion cell has undergone a change, as represented in the diagram below.

This change is most likely due to the cell being placed in

• distilled water

• salt water

• light

• darkness

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-5

The molecule pictured in the image is

• a phospholipid

• a carbohydrate

• a cholesterol

• a transport protein

Tags

NGSS.MS-PS1-1

Movement of particles from high to low concentration. 

• Passive Transport

• Active Transport

The diffusion of WATER across a semi-permeable membrane is

• osmosis

• diffusion

• endocytosis

• exocytosis

A cell with a 10% salt solution is placed into a beaker with a 40% salt solution.  How will water move?

• It will leave the cell

• It will enter the cell

• It will move in and out equally

• There will be no movement

Two examples of passive transport are

• Earth and Sun

• Diffusion and Osmosis

• Energy and Wind

• None of the above

Which way will the water molecules move during osmosis?

• Out of the cell, so the cell shrinks.

• Out of the cell, so the cell swells.

• Into the cell, so the cell shrinks.

• Into the cell, so the cell swells.

Tags

NGSS.MS-LS1-2

If the water concentration in a cell is 90% and the water concentration outside the cell is 95%, what direction will the water move?

• Into the cell

• Out of the cell

• The water will not move