Cell Transport Test

Front

Diffusion is the term for movement of molecules from

Back

an area of high concentration to an area of low concentration

Front

What is the difference between diffusion and osmosis?

Back

Osmosis is a type of diffusion which involves water molecules

Front

Salt (the dots) is added to the left side of a beaker at the start of the experiment. The picture on the right shows the end of the experiment. The end of the experiment is a good example of: Active Transport, Equilibrium, Osmosis, Endocytosis.

Back

Equilibrium

Front

WATER molecules will move when a beaker with 96% water and 4% salt is mixed with dialysis tubing containing 88% water and 12% salt.

Back

from the beaker to inside the tubing

Tags

NGSS.MS-ESS2-4

Front

SALT molecules will move when a beaker with 96% water and 4% salt solution is mixed with dialysis tubing containing 88% water and 12% salt solution.

Back

from inside the tubing to the beaker

Front

At the end of the experiment, the dialysis tubing will:

turn purple

,

weigh the same

,

weigh less

,

weigh more

Back

weigh more

Front

The diagram to the right shows a portion of a cell membrane. What is arrow A pointing to?

Options:

Protein

,

Carbohydrate

,

Phospholipid

,

Chromosome

Back

Protein

Tags

NGSS.MS-LS1-2

Front

What is arrow B pointing to in the cell membrane diagram? Options:

Protein

,

Carbohydrate

,

Phospholipid

,

Chromosome

Back

Phospholipid

Tags

NGSS.MS-LS1-2

Front

Which of the following statements about active transport is true?
A. Molecules always move from high to low concentration
B. Molecules can move from low to high concentration
C. Energy is required
D. A and C are true
E. B and C are true

Back

Molecules can move from low to high concentration and energy is required.

Front

Endocytosis: Which of the following best describes it?

• Cell membrane uses receptors to attach to molecules and pull them into the cell
• Cell membrane opens channels to allow molecules to flow from high to low concentration
• Cell membrane uses receptors to move molecules out of the cell
• Some molecules are so tiny that they are able to pass through the parts of the cell membrane on their own

Back

Cell membrane uses receptors to attach to molecules and pull them into the cell