Cell Membrane & Transport

The sodium potassium pump is an example of

• Passive Transport

• Active Transport

• Facilitated Diffusion

• Endocytosis

Human red blood cells contain 0.9% sodium chloride as a component of their cytoplasm. What would happen if an IV solution containing 3.5% sodium chloride is introduced into a person? 

• The red blood cell would get bigger and burst.

• The red blood cell would stay the same size.

• The red blood cell would shrink.

• The red blood cell would first loose water and then absorb water.

Tags

NGSS.HS-LS1-3

If the body can no longer make ATP, which type of transport would be impacted?

• Facilitated Diffusion

• Osmosis

• Active Transport

• Simple Diffusion

If you could no longer make ATP, which type of transport could still occur. Choose all that apply.

• Diffusion

• Pinocytosis

• Exocytosis

• Osmosis

Diffusion occurs when molecules

• move through a permanent barrier

• move against the concentration gradient

• move from high to low concentration

• move from low to high concentration

A balloon allows water but not sugar to pass through it. The balloon contains a 5% sugar solution. A beaker contains a 10% sugar solution. Which statement is true?

• Water will enter the balloon and it will swell

• Water will leave the balloon and it will shrink

• Sugar will enter the balloon

• Water will enter the balloon via active transport

Tags

NGSS.HS-LS1-3

Look at the picture. What is most likely to occur over a period of time?

• Oxygen will leave the cell.

• Oxygen will enter the cell.

• Carbon dioxide will leave the cell.

• Carbon dioxide will enter the cell.

Tags

NGSS.HS-LS1-7

A plant's root cell already has a higher concentration of nutrients inside the cell than outside of the cell. How can the cell still take in nutrients?

• Diffusion

• Passive Transport

• Active Transport

• Facilitated Diffusion

Which of these would be best used to model a cell membrane in order to demonstrate osmosis?

• glass that has a flat and uniform surface

• rubber balloon that can expand and stretch without breaking

• tissue paper that will easily rip and dissolve in water

• tubing with many pores that are too small to see

What is the function of carbohydrates in the cell membrane?

• The make up the majority of the cell membrane.

• They act as channels for substances to pass through.

• They act as name tags for the cell which is important for cell recognition and interaction.

• They are not found in the cell membrane.