Moving Cellular Materials

Question 1

Cell membrane

Answer 1

Controls why goes in and out of a cell selectively permeable
Maintains balance between the cell and the environment
Like a window screen

Question 2

Passive transport

Answer 2

The movement of substances through a cell membrane without the use of energy
There are three types

Question 3

Diffusion

Answer 3

When molecules move away from areas where there are MORE of them into areas where there are FEWER of them move from high to low concentration

Question 4

Equilibrium

Answer 4

Number of molecules becomes equal in both areas and diffusion stops
Example lungs

Question 5

Osmosis

Answer 5

The diffusion if WATER through a cell membrane

Why do u think salty gods make you thirsty

Question 6

Facilitated diffusion

Answer 6

Substances move in and out of a cell with the help of transport proteins
Happens because some molecules are just too big and need help
Ex glucose

Question 7

Active transport

Answer 7

When ENERGY is required to move substances in and out ifs cell
Ex root cells need minerals from the soil even though there’s more minerals in the cell than in the soil

Question 8

Endocytosis

Answer 8

A substance is taken into a cell by surrounding it with the cell membrane forming a sphere called a VESICLE
Phagocytosis cell eating
Pinocytosis cell drinking the drop engulfed is relatively small

Question 9

Exocytosis

Answer 9

The membrane of the VESICLE fuses with the cells membrane and the vesicles contents are released outside of the cell

Question 10

Permeable

Answer 10

Allowing liquids or gases to go through