Cell Transport

Exocytosis

release of wastes or cell products from inside to outside a cell

dynamic equilibrium

continuous movement of particles but no overall change in concentration

Diffusion

the natural movement of particles from an area of high concentration to an area of low concentration

PASSIVE TRANSPORT

endocytosis

entrance of large food particles into the cell by wrapping the particle in a membrane-bound vesicle.

ATP

energy

facilitated diffusion

transport of large molecules from high to low concentration with the help of a transport protein

The structure most responsible for maintaining cell homeostasis is the ...

cell membrane

A cell membrane is made up of a(n)

phospholipid bilayer

Which of the following is NOT a form of passive transport

endocytosis

Diffusion continues until…

equilibrium is reached

If a cell is placed in salt water, water leaves the cell by ...

osmosis

A cell moves particles from a region of lesser concentration to a region of higher concentration by ...

active transport

A higher concentration of glucose is found in the ...

blood

A lower concentration of glucose is found in the ...

cell

The cell needs glucose to produce energy; therefore, glucose will move ...

into the cell

Glucose is a macromolecule and cannot fit between the lipids in the membrane; therefore, this will require a ....

transport protein

The glucose moving into the cell is using the process of ...

facilitated diffusion

Facilliated diffusion ____ requires energy in the form of ATP

does not require energy in the form of ATP

The process of diffusion _______ require energy

does not

Diffusion does not require energy because ---

The dye molecules move from high concentration to low concentration.

Overwatering cells creates a ________ enviroment for plant cells

hypotonic

A hypotonic enviroment causes water to rush INTO plant cells through ______

Osmosis

Water rushing into cells through osmosis causes the plant cells to become _____ through tugor pressure

swollen

Under watering cells causes a ______ enviroment for plant cells.

Hypertonic

A hypertonic enviroment for plant cells causes water to rush _________.

out of the vacuole

In a hypertonic environment, when water rushes out of the vacuole, the plant cells become _____ due to decreased turgor pressure.

shrunken

An amoeba engulfs (takes in) a particle of food through the process of _____

endocytosis

Endocytosis is a form of ______________ and requires energy to create a membrane bound vesicle for transport

active transport

An amoeba expels (gets rid of) waste through the process of _____

exocytosis

Exocytosis is a form of ________ and requires energy to create a membrane bound vesiccle for transport

active transport

When a blood cell (70% water) is placed in a beacker of distilled water (100% water), it creates a ______ enviroment for the blood cell.

water will move ____________ through the process of _____ which ________

if the pressure within the cell were to become great _____ will ocur.

hypotonic

from the beaker to the blood

osmosis

does not require energy

plasmolysis

Osmosis

The movement of water through a semipermeable membrane from an area of high water concentration (low solute) to an area of low water concentration (higher solute)

PASSIVE TRANSPORT

Active transport

Moves molecules across a cell membrane from low concentration to high concentration (against the concentration gradient), requiring cellular energy like ATP and transport proteins