Which cellular components act to maintain cellular homeostasis using released energy?

transport proteins in the cell membrane

ribosomes on the endoplasmic reticulum

What effect will an animal’s eating less during hibernation most likely have on its maintenance of cellular homeostasis?

Less energy will be available for use in active transport of molecules across cell membranes

The animal’s body will generate energy in other ways, because more cellular actions are required than when the animal is awake and active.

There will be a great amount of cell damage due to less energy.

Cells will maintain homeostasis only via the processes of osmosis and diffusion.

To remain sensitive to stimulation, nerve cells require a higher concentration of potassium ions and a lower concentration of sodium ions inside the cell, compared to concentrations in the fluid surrounding the cells. How are these ion concentrations inside the cell maintained?

Energy is used to pump potassium ions in and sodium ions out of the cells.

Separate proteins allow the passive diffusion of each type of ion

Potassium ions passively flow into the cells and are exchanged for sodium ions.

Processes outside the nerve cells control maintenance of these differences.

Which uses energy to maintain cellular homeostasis?

movement of a solute from low to high concentration

water flowing into a cell until it reaches the same

passive transport of ions into a cell

movement of a solute from high to low concentration

Why is it important to rid the cell of toxins?

to maintain cellular respiration

The maintenance of homeostasis in animals is most directly related to which?

growth and development of the organism

recombination of chromosomes during meiosis

percentage of protein molecules in the organism

Which is most necessary for life?

producing a variety of proteins

Shira is analyzing samples of red blood cells using a microscope. Her observations are shown. Shira observes that the shape of Cell A appears normal, while Cell B appears swollen and Cell C is shrunken. The apparent shrinking of Cell C indicates the reaction of the cell to what?

higher solute concentration outside the cell than inside

an anaerobic environment outside the cell

lower solute concentration outside the cell than inside

more oxygen inside the cell than what can be utilized

A freshwater plant is placed in a container of saltwater. What will most likely happen to the cells of the plant?

They will shrink because water will move out of them.

They will swell because water will move into them.

They will swell because salt will move into them.

They will shrink because salt will move out of them.

Which could be used to represent the plasma membrane’s job?

a gatekeeper allowing cars in and out of a parking lot

a nuclear power plant producing energy

a high school principal running a school

Which scenario below could be used to represent how a cell uses active transport to move molecules across a membrane?

a child riding a bike down a hill

a car driving through a mountain tunnel

wind blowing a sailboat in the ocean

When placed into a solution that is 30% water and 70% salt, what would happen to a cell that has a 70% water concentration?

The cell will lose water and shrink to reach equilibrium with the environment.

The cell will maintain its 70% water concentration and swell to allow for some salt to enter the cell to reach equilibrium with the environment.

The cell will maintain its 70% water concentration and remain the same size.

The cell will take in water and swell to reach equilibrium with the environment.

A red blood cell is soaked in a solution of lower than normal salt concentration. Which might happen to the red blood cell when homeostasis is not maintained?

The swollen red blood cell may block an artery.

The red blood cell may collapse.

The red blood cell may mutate into a cancer cell.

A cell is placed in a highly concentrated salt solution. What will most likely happen to the cell if left in the solution?

The cell will shrink in size, losing water due to osmosis.

The cell will grow in size, gaining some salt due to osmosis

The cell will shrink in size, losing some of its salts due to osmosis

The cell will grow in size, gaining water due to osmosis.

A student noticed that placing wilted lettuce in a bowl of cool water caused the lettuce to become more crisp and firm. What is the best explanation for his observation?

Water moved into the lettuce cells by osmosis.

Water moved out of the lettuce cells by osmosis.

Water moved into the lettuce cells by active transport

Salt moved into the lettuce cells by diffusion.

Which will most likely happen if a freshwater plant cell is placed in a beaker of salt water for an hour?

It will reach a state of equilibrium.

It will use energy and pump extra salt out of the cell.

The concentration of solutes differs on the two sides of a cell membrane that are permeable only to water. Which describes the movement of materials across the cell membrane?

Water will move by active transport.

Solutes will move by dissolving into another substance.

Which best signals that equilibrium has been reached across a selectively permeable membrane?

The movement of water across the membrane is balanced

The movement of water across the membrane stops.

The movement of dissolved particles across the membrane begins.

The membrane will begin to allow all substances to pass through.

In which case would a cell most likely shrink?

when placed in a solution containing a high salt concentration

when placed in a solution containing distilled water

when placed in a isotonic solution

when placed in a solution containing a low pH

An animal cell is placed into distilled water. Which best describes what will happen to the animal cell?

It will increase in size until it ruptures.

It will be unaffected by the distilled water.

It will begin to undergo mitosis.

Biology: Cell Transport Practice

Authored by John Herring

Biology

9th Grade

NGSS covered

Used 56+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane?

Substances are moving through channels in the cell membrane

Substances are moving rapidly across the cell membrane.

Substances are moving from high to low concentrations.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If energy is needed to move materials into or out of a cell, what is most likely occurring?

passive transport

osmosis

active transport

diffusion

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do living things require energy for active transport?

Organisms move solutes from high to low concentration

Organisms move substances against the gradient.

Organisms move substances down the gradient.

Organisms use the energy for osmotic purposes.

Which process allows an amoeba to bring food inside to maintain cellular homeostasis?

locomotion

phagocytosis

organogenesis

photosynthesis

Which process includes all of the others?

facilitated diffusion

passive transport

transport down a gradient

diffusion across a membrane

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which process uses ATP to pump small molecules and ions across the cell membrane to maintain homeostasis?

passive transport

osmosis

diffusion

active transport

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

How does the amount of cellular energy used to move a molecule into a cell by active transport compare to the energy used for its movement by passive diffusion?

The amount of energy used is the same with both types of movement.

More energy is used.

The amount of energy used depends only on the type of molecule being moved.

Less energy is used.

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Biology: Cell Transport Practice

Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane?

If energy is needed to move materials into or out of a cell, what is most likely occurring?

Why do living things require energy for active transport?

Which process allows an amoeba to bring food inside to maintain cellular homeostasis?

Which process includes all of the others?

Which process uses ATP to pump small molecules and ions across the cell membrane to maintain homeostasis?

How does the amount of cellular energy used to move a molecule into a cell by active transport compare to the energy used for its movement by passive diffusion?

Which cellular components act to maintain cellular homeostasis using released energy?

What effect will an animal’s eating less during hibernationmost likely have on its maintenance of cellular homeostasis?

Single-celled organisms move substances from low concentrations to high concentrations to maintain homeostasis. What is this process called?

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