APR cell Lab

Which of the following statements is correct regarding this animation?

A solute concentration of 0.9% is considered isotonic

Diffusion continues until...

Equilibrium is reached

All of the following are ways in which cells bring material to the inside of the plasma membrane except..

Exocytosis

Facilitated diffusion is similar to simple diffusion in that both processes...

Involve the movement of substances down their concentration gradients

Molecules that are dissolved in a solution are in constant random motions due to...

Kinetic energy

Which stage of mitosis is characterized by the formation of double-stranded chromosomes along the equator of the cell and microtubules attached to each sister chromatid?

Metaphase

Which of the following can be viewed as cellular "drinking"?

Pinocytosis

Endocytosis is a process by which the ____________ surrounds and engulfs large particles.

Plasma membrane

What specifically occurs when the phosphate is released from the inner surface of the membrane?

Potassium moves to the inside of the cell

The change in shape of the carrier protein that results from the sodium moving through the membrane allows...

Potassium to bind to the carrier protein

The four stages of mitosis, in order of occurrence, are

Prophase, Metaphase, anaphase,telophase

Which of the following is characterized by the binding of molecules to an extracellular protein, deepening of a coated pit, and eventual creation of a coated vesicle?

Receptor-mediated endocytosis

In the example shown in this animation...

Sodium is more highly concentrated in the extracellular fluid

The sodium-potassium pump is responsible for moving...

Sodium to the outside of the cell

In facilitated diffusion, molecules are transported across a membrane by...

Special carrier molecules

The rate of diffusion is affected by..

Temperature, size of molecules, and the incline of the concentration gradient

Diffusion is the.

Tendency of substances to move from areas of high concentration to low concentration

Which of the following statements below is true regarding interphase?

The cell continues to prepare for mitosis and cell division during the second gap phase (G2)

What is occurring during the process called crenation?

The cell is shriveling due to loss of water to the extracellular fluid (ECF)

If the solute concentration is higher in the extracellular fluid (ECF) than in the intracellular fluid (ICF) water will move...

To the outside of the cell

Osmosis is the movement of _______ through a selectively permeable membrane.

Water

Active transport requires the breakdown of ________ to move substances against their concentration gradients.

atp

The net movement of molecules down a concentration gradient is known as...

diffusion

A given carrier protein can bind to and transport several different types of molecules.

false

A hypotonic solution has a higher concentration of solutes than does a hypertonic solution.

false

Diffusion is not used to move substances through cell membranes.

false

Sugars can freely pass through the lipid bilayer of a cell.

false

When the osmotic concentrations of two solutions are equal, the solutions are said to be...

isotonic

Which stage of mitosis is characterized by the formation of double-stranded chromosomes along the equator of the cell and microtubules attached to each sister chromatid?

metaphase

Special carrier molecules are composed of...

protein

Which statement correctly describes the result of cytokinesis?

the Creation of two identical Daughter Cells

In facilitated diffusion, a given carrier protein can move a substance either into or out of the cell depending on its concentration gradient.

true

Phagocytosis can be thought of as cellular "eating" because the cell is bringing in solid material too large to pass through the cell membrane.

true

The stage of the cell cycle where cells participate in growth and metabolic activities is known as interphase.

true

Osmosis deals specifically with the diffusion of...

water molecules