Membrane Permeability

This is a picture of

• Cell wall
• Cell membrane
• chloroplast
• mitochondria

Tags

NGSS.MS-LS1-2

Another term for equilibrium is...

• Not enough

• Too little

• Homeostasis /Balance

• Too much

Tags

NGSS.HS-LS1-3

The cell membrane is selectively permeable, which means...

• All materials can enter and leave the cell

• Certain things can enter while others cannot

• The cell manually sorts through all materials

A can of air freshener is sprayed in the opposite side of the room.  Ten minutes later you start to smell the scent.  This is an example of 

• diffusion
• active transport
• endocytosis
• osmosis

Particles that move against the concentration gradient (from low to high concentration) and require extra energy (ATP) to make it work.

• facilitated diffusion

• osmosis

• active transport

• simple diffusion

The diffusion of WATER across a semi-permeable membrane is

• osmosis
• diffusion
• endocytosis
• exocytosis

Which part inside the plasma membrane provides a pathway for large molecules to enter and exit the cell? (This is called facilitated diffusion!!)

• Lipids

• Proteins

• Carbohydrates

• Cholesterol

Diffusion & Facilitated Diffusion are both __________ transport.

• Passive

• Active

• Easy

• Free

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

• high to low

• low to high

• low to low

• high to high

Passive Transport uses ____ energy

• no

• a lot of

• a little bit of

• some