Quiz about AP Biology Water and Transpiration

Question 1

What type of solution allows water to enter the plant cell?

Accepted Answer

hypotonic solution

Answer

hypertonic solution

Answer

isotonic solution

Answer

active transport

Question 2

A cell with a water potential of -1.5 bars is placed in a beaker of sugar water with $$\Psi s$$ = -4.0 bars. In which direction will the net flow of water be?

Accepted Answer

Out of the cell

Answer

Into the cell

Answer

Both into and out of the cell

Answer

Neither into nor out of the cell

Question 3

A cell with a water potential of -1.5 bars is placed in a beaker of sugar water with $$\Psi s$$ = 1.5 bars. In which direction will the net flow of water be?

Accepted Answer

No net flow of water

Answer

Into the cell

Answer

Out of the cell

Question 4

The value for $$\Psi$$ in root tissue was found to be -3.3 bars. If you take the root tissue and place it in a 0.1 M solution of sucrose at 20 $$\degree$$ C in an open beaker, what is the $$\Psi$$ of the solution, and in which direction would the net flow of water be?

Accepted Answer

$$\Psi s$$ = -2.43, net flow into the root

Answer

$$\Psi s$$ = -3.3, net flow into the root

Answer

$$\Psi s$$ = 3.3, net flow out of the root (into the solution)

Answer

$$\Psi s$$ = 2.43, net flow out of the root (into the solution)

Question 5

A plant cell with a $$\Psi s$$ of -7.5 bars keeps a constant volume when immersed in an open-beaker solution that has a $$\Psi s$$ of -4 bars. What is the cells $$\Psi p$$ ?

Accepted Answer

3.5

Answer

-4

Answer

-7.5

Answer

-3.5

Question 6

Osmosis is the movement of _____ across a membrane.

Accepted Answer

water

Answer

food

Answer

energy

Answer

oxygen

Question 7

Where will the water go?

Accepted Answer

Out of the cell

Answer

Into the cell

Answer

Equally in & out - it's isotonic

Answer

There is no water

Question 8

This egg has shrunk, what type of solution was it placed in?

Accepted Answer

hypertonic solution

Answer

hypotonic solution

Answer

isotonic solution

Answer

active transport

Question 9

You put a cell into a solution, the cell grows. Is the solution hypotonic or hypertonic to the cell?

Accepted Answer

hypotonic

Answer

hypertonic

Answer

isotonic

Answer

not enough information

Question 10

An ISOTONIC solution has a(n) ______________ concentration of solute (dissolved stuff) than inside the cell.

Accepted Answer

equal

Answer

lower

Answer

higher

Question 11

A blood cell is placed into the jar, as seen. Where will the water go?

Accepted Answer

Equally in & out - it's isotonic

Answer

Into the cell

Answer

Out of the cell

Answer

The water is a lie

Question 12

An animal cell placed in a hypertonic (salty) solution will

Accepted Answer

Shrink- get smaller

Answer

Stay the same

Answer

Swell- get bigger

Question 13

Why can't you drink salt water?

Accepted Answer

It's hypertonic to your cells

Answer

It's hypotonic to your cells

Answer

It's isotonic to your cells

Answer

It's paratonic to your cells

Question 14

What is the primary function of the light reactions of photosynthesis?

Accepted Answer

To produce NADPH and ATP

Answer

To produce glucose

Answer

To use ATP

Answer

To produce RuBP

Question 15

When oxygen is released as a result of photosynthesis, it is a direct by-product of

Accepted Answer

splitting water molecules

Answer

reducing NADP+

Answer

chemiosmosis

Answer

electron transfer in photosystem II and I

Question 16

The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule. What is this attraction called?

Accepted Answer

a hydrogen bond

Answer

a covalent bond

Answer

an ionic bond

Answer

a hydrophilic bond

Answer

a hydrophobic bond

Question 17

An example of a hydrogen bond is the bond between

Accepted Answer

the H of one water molecule and the O of another water molecule.

Answer

C and H in methane (CH4).

Answer

Na+and Cl- in salt.

Answer

the two hydrogen atoms in a molecule of hydrogen gas (H2).

Answer

Mg+and Cl- in MgCl2.

Question 18

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by

Accepted Answer

polar covalent bonds.

Answer

hydrogen bonds.

Answer

nonpolar covalent bonds

Answer

ionic bonds.

Answer

van der Waals interactions

Question 19

Water is able to form hydrogen bonds because

Accepted Answer

the bonds that hold together the atoms in a water molecule are polar covalent bonds.

Answer

oxygen has a valence of 2.

Answer

the water molecule is shaped like a tetrahedron.

Answer

the oxygen atom in a water molecule has a weak positive charge.

Answer

each of the hydrogen atoms in a water molecule is weakly negative in charge.

Question 20

Which property of water allows it to move through the xylem of plants against gravity?

Accepted Answer

Cohesion and adhesion

Answer

High specific heat

Answer

Low density of ice

Answer

Universal solvent

Question 21

What is the primary force that drives water movement from the roots to the leaves in plants?

Accepted Answer

Transpiration pull

Answer

Root pressure

Answer

Capillary action

Answer

Osmosis

Question 22

In an experiment, a plant is placed in a sealed container with a hygrometer. What is the purpose of the hygrometer in this experiment?

Accepted Answer

To measure the rate of transpiration

Answer

To measure the rate of photosynthesis

Answer

To measure the soil moisture content

Answer

To measure the plant's growth rate

Question 23

Which of the following best explains why water is a good solvent for ionic compounds?

Accepted Answer

Water molecules are polar

Answer

Water has a high specific heat

Answer

Water has a low density

Answer

Water has a high surface tension

Question 24

A plant cell is placed in a solution with a water potential of $$-2.5$$ bars. If the cell's water potential is $$-1.0$$ bars, what will happen to the cell?

Accepted Answer

Water will move out of the cell

Answer

Water will move into the cell

Answer

There will be no net movement of water

Answer

The cell will burst

Question 25

Which of the following processes in plants is directly affected by the opening and closing of stomata?

Accepted Answer

Transpiration

Answer

Photosynthesis

Answer

Respiration

Answer

Protein synthesis

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