Molecular Transport Quiz

Which of the following processes is involved in the passage of water through cell walls?

• Diffusion

• Osmosis

• Assimilation

• Active transport

Which of the following is involved in the passage of water into the tissues of freshwater fish?

• diffusion

• osmosis

• active transport

• concentration

Tags

NGSS.MS-ESS2-4

The diagram shows an experiment that demonstrates osmosis.

In the experiment, the MAIN function of the Visking tube is to act as a...

• plastic bag

• permeable membrane

• non-permeable membrane

• semi-permeable membrane

The diagram shows an experiment that demonstrates osmosis.

Which of the following processes occur after several hours?

• Water moves from the beaker into the Visking tube

• Water moves from the Visking tube into the beaker

• Sugar moves from the beaker into the Visking tube

• Sugar from the Visking tube into the beaker

All of the following biological processes rely on diffusion to take place EXCEPT

• uptake of mineral salts from the soil into the plant root cells

• movement of carbon dioxide into the leaf, via the stomata

• movement of oxygen into the red blood cell from the alveoli of the lungs

• initial transfer of digestive products from small intestines into the blood

The smell of food cooking in a kitchen spreads out through the home via

• dilution

• diffusion

• active transport

• osmosis

What are two differences between diffusion and osmosis?
(Choose TWO options)

• Osmosis deals with water molecules ONLY, whereas diffusion occurs with ANY particle

• Diffusion is the movement of particles against their concentration gradient.
  Osmosis is the movement of particles down their concentration gradient.

• Osmosis, unlike diffusion, requires a semi-permeable membrane separating the mixtures that differ in concentration.

• Diffusion, unlike osmosis, is a process that moves particles according to difference in temperature

When does active transport occur, usually?

• When osmosis happens too quickly

• At the same time as diffusion of the same particles

• When the concentration gradient is too shallow for diffusion to occur

• When the water molecules are blocked from flowing

Which is a description of a hypertonic condition?

• A solution with a higher concentration, as compared to another solution.

• A solution with no solutes.
• A solution that has the same concentration as another solution.

• A solution with a lower concentration, as compared to another solution.

Which is a description of an isotonic condition?

• A solution with a higher concentration, as compared to another solution.

• A solution with no solutes.
• A solution that has the same concentration as another solution.

• A solution with a lower concentration, as compared to another solution.