Cell membranes have selective permeability which means

it allows some, but not all materials in and out

it allows all things in and out

Molecules always diffuse this way

area of high concentration to an area of low concentration

area of low concentration to an area of high concentration

area of high concentration to an area of high concentration

area of low concentration to an area of high concentration

Which of the following best describes the way the water will flow through the semipermeable membrane?

Nothing, the water levels are already equal

The water will move both directions

Which of the following substances is unable to diffuse across the plasma membrane?

Sodium, because ions have charge.

Water, because water molecules participate in hydrogen bonding.

Oxygen, because oxygen molecules are polar.

Carbon dioxide, because the large size of the molecules.

Starch turns a blue-black color in the presence of iodine. Julian decides to use this information to test the permeability of some dialysis tubing. Julian fills the tubing with a starch solution and places it in a beaker of iodine and water. After two hours, the starch solution in the dialysis tubing turns blue-black, and the iodine solution is the same color. What do Julian's results show about the permeability of the tubing?

The dialysis tubing is permeable to iodine but not to starch.

The membrane is permeable to both starch and iodine

The dialysis tubing is permeable to starch but not to iodine.

The dialysis tubing is not permeable to starch or iodine.

The image shows atoms of helium gas in a box. The box is divided into two sections of equal volume by a membrane which is permeable to helium. Which of the following scenarios is most likely to occur? Choose 1 answer:

There will be a net movement of helium atoms from left to right.

There will be a net movement of the helium atoms from the top of the box to bottom of the box.

There will be a net movement of helium atoms from right to left.

There will be no net movement of helium atoms.

Which of the following is true regarding the proteins involved in facilitated diffusion?

Channel and carrier proteins transport materials at different rates.

Channel and carrier proteins allow molecules to diffuse passively against their concentration gradients.

Ions such as sodium, potassium, and calcium can move across the membrane through the use of channel proteins.

Aquaporins are a type of carrier protein.

Which of the following is true of diffusion?

Diffusion of particles along the concentration gradient will occur until particles are equally distributed in all areas of the solution.

Diffusion of particles against the concentration gradient will occur until all the particles have dissolved.

Diffusion of particles along the concentration gradient will occur until the particles move fully from one side of the solution to the other.

Diffusion of particles against the concentration gradient will occur until random motion occurs.

The U shaped pipe shown in the figure below is divided with a membrane that is only permeable to water. Which of the following best describes how water will flow through the membrane?

Water will flow from side B into side A.

Water will flow from side A into side B.

The water levels are already equal so water will not flow through the semipermeable membrane.

In which direction do particles in a solution move during passive diffusion?

From higher to lower areas of concentration

From lower to higher areas of concentration

A plant cell has a 5\%5%5, percent salt concentration. It is placed into a solution containing a 12\%12%12, percent salt concentration. What will happen to the plant cell?

Water will move out of the plant cell, causing it to shrivel.

Water will move into the plant cell, causing it to shrivel.

Water will move into the plant cell, causing it to swell and burst.

Water will move out of the plant cell, causing it to swell and burst.

The image below shows molecules of carbon dioxide gas in a box. The box is divided into two sections of equal volume by a membrane which is permeable to carbon dioxide. Which of the following scenarios is most likely to occur?

There will be a net movement of carbon dioxide molecules from right to left.

There will be a net movement of the carbon dioxide molecules from the top of the box to bottom of the box.

There will be no net movement of carbon dioxide molecules.

There will be a net movement of carbon dioxide molecules from left to right.

Which of the following is true of osmosis?

Osmosis is a type of passive transport.

Osmosis is the movement of oxygen across a membrane.

Osmosis requires the use of the energy molecule ATP.

Osmosis moves against the water concentration gradient.

Which of the following substances is unable to diffuse across the plasma membrane?

Sodium, because ions have charge.

Carbon dioxide, because the large size of the molecules.

Oxygen, because oxygen molecules are polar.

Water, because water molecules participate in hydrogen bonding.

Which of the following is an example of active transport?

Sodium being reabsorbed in the kidney

Oxygen exchanging between red blood cells and liver cells

Carbon dioxide exchanging between muscle cells and red blood cells

Water moving out of the small intestine

How can substances be transported across a membrane against their concentration gradient?

Some membrane proteins are ATP-dependent carrier molecules.

The plasma membrane is fully hydrophobic.

Some membrane proteins act as channels for specific molecules to enter the cell.

The plasma membrane is permeable to all small molecules.

There are several forms of endocytosis, such as phagocytosis and pinocytosis.

Phagocytosis is the intake of large particles or other cells, while pinocytosis is the intake of small amounts of liquid.

Pinocytosis is the transport of particles out of a cell, while phagocytosis is the transport of particles into a cell.

Pinocytosis is the intake of large particles or other cells, while phagocytosis is the intake of small amounts of liquid.

Phagocytosis is the transport of particles out of a cell, while pinocytosis is the transport of particles into a cell.

Which of the following are examples of exocytosis?

The transport of chemical messengers (or neurotransmitters) out of nerve cells

The release of antibodies from a white blood cell

The absorption of water by a red blood cell

A macrophage engulfing a pathogen to destroy it

Select all of the statements that describe the particles or their movement based on the time-lapse diagram. The diagram models the time-lapse movement of particles across a cell membrane. The particles have characteristics that allow them to pass freely across the membrane.

The particles crossing the membrane do not have a charge.

The movement across the membrane does not require added energy.

The particles crossing the membrane could be water (H2O) or oxygen (O2).

A red blood cell is placed into an aqueous solution. The red blood cell has a lower concentration of protein and sugar than the aqueous solution, as shown in the diagram. In the diagram, the volume of the cell is equal to the volume outside the cell. What is most likely to occur?

Water from the red blood cell will diffuse into the solution.

Water from the solution will diffuse into the red blood cell.

Protein and sugar from the solution will diffuse into the red blood cell.

Protein and sugar from the red blood cell will diffuse into the solution.

Cells Mahoney

Authored by Charles Martinez

Biology

9th - 11th Grade

NGSS covered

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50 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

This is a network of proteins found inside the cell that gives the cell its shape, strength, and allows movement

cytoskeleton

nucleus

ribosome

lysosome

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The image represents a ________ cell.

prokaryotic

eukaryotic

animal

plant

Tags

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The number 5 in the image represents

cell wall

cell membrane

vacuole

nucleus

Tags

NGSS.MS-LS1-2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Number 1 in the image represents the cells

nucleus

nucleolus

ribosome

mitochondria

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The image represents a ______________ cell.

plant

bacteria

prokaryotic

eukaryotic

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The number 6 in the image is

the nucleus

a chloroplast

a vacuole

the cell membrane

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The number 9 in the image is

a chloroplast

a mitochondria

Golgi

the nucleus

Tags

NGSS.HS-LS1-7

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Cells Mahoney

This is a network of proteins found inside the cell that gives the cell its shape, strength, and allows movement

The image represents a ________ cell.

The number 5 in the image represents

Number 1 in the image represents the cells

The image represents a ______________ cell.

The number 6 in the image is

The number 9 in the image is

The image on the right is a

This area of the cell will store all genetic information or DNA

This organelle will process, sort, and deliver proteins.

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