Cell structures and transport

Front

An unidentified cell under a microscope contains a nucleus. This cannot be an example of which type of cell?

Back

prokaryotic cell

Front

What are the yellow circles on the diagram made out of and how do they react to water?

Back

Phosphate heads, hydrophilic

Front

This diagram is an example of:

• simple diffusion
• facilitated diffusion
• active transport
• osmosis

Back

facilitated diffusion

Front

The sodium-potassium pumps in animal cells pump potassium into the cell from an area of low concentration to an area of higher concentration. This is an example of:

Back

active transport

Front

Equilibrium will be achieved in relation to the small, blue particles by ____________. However, in relation to the large, white particles _____________ will help achieve equilibrium.

Back

diffusion, osmosis

Front

Which parts of the cell membrane are hydrophilic?

Back

Phosphate heads

Front

The environment that the middle cell is in would be classified as: hypertonic, hypotonic, isotonic, all of these, none of these

Back

isotonic

Front

A cell with 20% sodium is placed into a solution with 25% sodium. The solution is said to be ____________.

Back

hypertonic

Front

The fatty acid tails that make up the interior of the cell membrane are hydrophobic because

Back

The bonds are non-polar so they won't be attracted to the polar water molecules

Front

The particles in this diagram are too large to pass through the semipermeable membrane, so water moves across instead to achieve equal concentrations on both sides. This is an example of:

Back

osmosis