Osmosis and Diffusion

Which means of particle transport requires energy?

• diffusion

• osmosis

• facilitated diffusion

• active transport

Which of the following is a function (job) of the cell membrane>

• breaks down lipids, carbohydrates, and proteins from food

• stores water, salt, proteins, and carbs

• keeps the cell wall in place

• regulates the movement of materials into and out of the cell

Tags

NGSS.MS-LS1-2

An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes

• water to move into the cell

• water to move out of the cell

• solutes to move into the cell

• solutes to move out of the cell

Tags

NGSS.HS-LS1-3

During diffusion, when the concentration of molecules on both sides of a membrane is THE SAME, the molecules will

• move across the membrane to outside of the cell

• stop moving across the membrane

• continue to move across the membrane in both directions

• move across the membrane to the inside of the cell

Tags

NGSS.MS-LS2-3

Diffusion occurs because

• molecules are attracted to one another

• molecules are constantly moving in and out

• cellular energy forces the molecules to collide with each other

• cellular energy pumps molecules across the membrane

Which means of particle transport is shown in the picture?

• endocytosis

• exocytosis

• facilitated diffusion

• protein pump

Molecules tend to move from an area of high concentration to low concentration is called

• facilitated diffusion

• diffuson

• osmosis

• receptor

The diffusion of water across a selectively membrane is called

• diffusion

• active transport

• homestatsis

• osmosis

Large molecules, such as glucose, that cannot cross the lipid bilayer can still move across the membrane through a type of PASSIVE transport called

• facilitated diffusion

• active transport

• osmosis

• diffusion

The relatively constant internal physical conditions of an organism is called

• diffusion

• receptor

• homestatsis

• active transport

Tags

NGSS.HS-LS1-3