Lecture 7 - Cell transport A

Question 1

What is diffusion?

Answer 1

molecules move from more concentration to low concentration, to form equilibrium.

Question 2

What is osmosis?

Answer 2

water move from more molecule to less because of semi permeable membrane

Question 3

What does isotonic environment mean?

Answer 3

iso = same

meaning the concentration outside the cell = inside the cell

Question 4

Is an isotonic environment good for animal cells or plant cells

Answer 4

It is normal for animal cells but bad for plants

Question 5

What do isotonic environments cause in plants?

Answer 5

Cause them to wilt

Question 6

What is a hypotonic environment?

Answer 6

Hypo = Low

Solute concentration inside the cell is greater than outside the cell.

Question 7

Is a hypotonic environment good for animal cells or plant cells

Answer 7

It is bad for animal cells but normal for plant cells.

Question 8

What do hypotonic environments cause in animal cells?

Answer 8

Lysing. They burst.

Question 9

What is a hypertonic environment?

Answer 9

Hyper = Elevated

Bad for all cells

Question 10

What do hypertonic environments cause in cells?

Answer 10

Animal cells shrivel and Plant cells plasmolyze

Question 11

How do gasses enter cells?

Answer 11

By diffusion through the phospholipid membrane.

Question 12

Are steroid hormones hydrophobic or hydrophilic?

Answer 12

Hydrophobic