0.9% NaCl is isotonic to red blood cells. Which of these describes what will happen if a technician misplaces a decimal point and makes 9.0% NaCl solution instead and administers it to a patient?

The cells exposed to the solution will shrink.

The cells exposed to the solution will burst.

The cells will remain the same size.

The cells exposed to the solution will expand but not burst.

The soil surrounding the roots of a plant has a water potential of -15 bars. The leaves of the plant have a water potential of -18 bars. What will happen?

Water will move from the roots to the leaves of the plant.

Water will leave the plant and the plant will wilt.

Nothing - these solutions are isotonic.

A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, distilled water-equal to the volume of blood lost-is transferred directly into one of his veins. What will be the most probable result of this transfusion?

The patient's red blood cells will swell because the blood fluid has become hypotonic compared to the cells.

The patient's red blood cells will shrivel up because the blood fluid has become hypertonic compared to the cells.

The patient's red blood cells will shrivel up because the blood fluid has become hypotonic compared to the cells.

It will have no unfavorable effect as long as the water is free of viruses and bacteria.

In a hypothetical study, cells are placed in a solution of glucose in which the concentration of glucose is gradually increased. At first, the rate at which glucose enters the cells is found to increase as the concentration of the glucose solution is increased. But when the glucose concentration of the solution is increased above 10 M, the rate no longer increases. Which of the following is the likely mechanism for glucose transport into these cells?

Facilitated diffusion via a carrier protein

Facilitated diffusion via a channel protein

Which way would the purple molecules move through the semi-permeable membrane?

none of the purple molecules would move

they would move equally back and forth in a state of dynamic equilibrium

Neither into or out of the cell

What are the four emergent properties of water that are important for life?

cohesion, moderation of temperature, expansion upon freezing, solvent properties

cohesion, expansion upon freezing, high heat of evaporation, capillarity

moderation of temperature, solvent properties, high surface tension, capillarity

a)polarity, hydrogen bonding, high specific heat, high surface tension

If water was treated with molecules that reduce or remove surface tension, which of the following would occur?

Treated water droplets would form a thin film instead of beading on a waxed surface.

Treated water would form smaller droplets when dripping from a sink.

Skin is coated with a hydrophobic glycolipid. What would happen if this glycolipid were not present?

Skin would swell when swimming.

Water would never enter the skin cells.

The temperature of the skin would increase

Which of the statements concerning nitrogenous bases is incorrect?

Purines always bond with purines and pyrimidines always bond with pyrimidines.

Guanine and cytosine have a stronger bond than the other pairings.

RNA uses uracil instead of thymine.

Purines are composed of two rings.

Many plant leaves have an outer layer, called the waxy cuticle, that aids in the prevention of dehydration via transpiration. When water falls on the waxy cuticle, it immediately beads up and rolls off. Based on this information, what must be true of the waxy cuticle?

It hydrolyzes the water molecules.

Which way would the purple molecules move through the semi-permeable membrane?

none of the purple molecules would move

they would move equally back and forth in a state of dynamic equilibrium

Neither into or out of the cell

AP Biology Passive and Active Transport

Authored by Katrina J Mcgrady

Biology

11th Grade

NGSS covered

Used 37+ times

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83 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What do the brown structures represent?

Phospholipids

Glycoproteins

Channel Proteins

Cyctoskeleton Filaments

Controlling what goes into or out of the cell with the help of energy is called

active transport

endocytosis

passive transport

exocytosis

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which form of active transport is being shown? (Inside of the cell is tan colored)

Facilitated Diffusion

Exocytosis

Endocytosis

Receptor-mediated endocytosis

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The sodium-potassium pumps requires energy to move ions across the cell membrane against their concentration gradient so it is a type of

active transport

osmosis

diffusion

facilitated diffusion

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A saltwater snail is placed in freshwater. What happens to its cells?

They shrink

They swell

Nothing happens

Engulfing of bacteria by white blood cells is called as

Phagocytosis

Pinocytosis

Exocytosis

Endocytosis

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened?

The cells were placed in a hypotonic solution.

the solution was isotonic.

The solution was hypertonic.

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AP Biology Passive and Active Transport

What do the brown structures represent?

Controlling what goes into or out of the cell with the help of energy is called

Which form of active transport is being shown? (Inside of the cell is tan colored)

The sodium-potassium pumps requires energy to move ions across the cell membrane against their concentration gradient so it is a type of

A saltwater snail is placed in freshwater. What happens to its cells?

Engulfing of bacteria by white blood cells is called as

If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened?

A lab tech performed a routine RBC count. The cells appeared shriveled and were difficult to count. What was wrong with the cell storage solution.

A shrinking of the cytoplasm away from the wall due to outward osmotic flow of water

A cell in an isotonic solution will

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