Biology 003 - Introduction to Biology » Fall 2022 » Lab 4 Quiz
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Question #1
Plasmolysis:
A.
occurs when the cell is so full of water that the cell membrane pushes against the cell wall.
B.
occurs when turgor pressure increases in the cell.
C.
occurs when water enters the cell.
D.
occurs when water leaves the cell.
E.
None are correct
Question #2
You are stranded on a deserted island and you run out of fresh water. You decide to drink salt water. What will most likely happen to your cells?
A.
Your cells will fill with water.
B.
Your cells will burst.
C.
None are correct
D.
Your cells will lose water.
E.
Your cells will not change at all.
Question #3
How does placing the onion skin in a 20% salt solution affect the turgor pressure of the cells?
A.
Turgor pressure in the cells increases.
B.
Turgor pressure in the cells in not affected.
C.
Turgor pressure in the cells decreases.
Question #4
Molecules that need to move up (against) their gradient need what type of transport to get through the membrane?
A.
Facilitative diffusion
B.
Diffusion
C.
Active
D.
Osmosis
E.
Passive
Question #5
Which of the following tests yields a blue color when the result is negative (i.e. when the macromolecule it tests for is absent)?
A.
Benedicts
B.
Sliver Nitrate
C.
Iodine
D.
All of these test show a blue colour for negative test
Question #6
Match the test with the macromolecule it tests for. Benedicts Test
A.
Chloride
B.
Fats
C.
Starch
D.
Reducing Sugar
Question #7
Match the test with the macromolecule it tests for. Silver Nitrate Test
A.
Reducing Sugar
B.
Fats
C.
Starch
D.
Chloride
Question #8
Match the test with the macromolecule it tests for. Iodine Test
A.
Chloride
B.
Fats
C.
Starch
D.
Reducing Sugar
Question #9
Match the test with the positive result. Benedict's Test
A.
Colour turns violet
B.
Colour turns blue black
C.
Colour turns yellow, red-orange or green
D.
Colour turns Milky white
Question #10
Match the test with the positive result.Iodine Test
A.
Colour turns violet
B.
Colour turns blue black
C.
Colour turns yellow, red-orange or green
D.
Colour turns Milky white
Question #11
Match the test with the positive result.Silver Nitrate Test
A.
Colour turns blue black
B.
Colour turns violet
C.
Colour turns yellow, red-orange or green
D.
Colour turns Milky white
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