Osmosis

Question 1

Osmosis

Answer 1

The movement of water from a high water potential to a low water potential

Question 2

Potato in pure water solution

Answer 2

The potation increased in mass because water moved into the potato. Water moved from high w.p. in the tube to low w.p. in the potato across the partially permeable membrane

Question 3

Potato in strong salt solution

Answer 3

The potation decreased in mass because water moved out of the potato. Water moved from high w.p. in the potation to low w.p. in the tube across the partially permeable membrane

Question 4

Potato in the mild salt solution

Answer 4

Nothing happeded. The w.p. in the potato and the tube was very similar, therefore osmosis did not take place

Question 5

Safety aspects

Answer 5

Do not cut yourself with the scalpel

Question 6

Reliability

Answer 6

How repeatable an experiment is, how many times can you repeat it and get the same results

Question 7

Accurate

Answer 7

How close it is to the true value

Question 8

Precise

Answer 8

How detailed the results are that you are gathering. More decimal places = more precise

Question 9

Flaccid

Answer 9

A plant cell that has lost its internal pressure, when the cytoplasm no longer pushes angains the cell wall

Question 10

Plasmolysed

Answer 10

A plant celll that has lost water by osmosis, resulting in the cell contents shrinking and the cell membrane and cytoplasm pulling away from the cell wall

Question 11

Turgid

Answer 11

A plant cell with hig internal pressure, so that the cytoplasm pushes agains the cell wall