Biology Cell transport and cell membrane

Examples of particles that can diffuse across through the phospholipid bilayer include:

• oxygen and carbon dioxide

• sugar

• water

• calcium ions

Tags

NGSS.MS-LS1-2

Describes the arrangement of the cell membrane as bendable and made of many parts. 

• The Fluid Mosaic Model 
• The Major Mobility Model 
• The Crazy Cell Model
• The Maze Model

Tags

NGSS.MS-LS1-2

Something is ___________ ____________
when some molecules can cross the membrane while others cannot. 

• Selectively (or Semi) Permeable 
• Totally Transparent
• Liquid Licorice 
• Heavily Patrolled 

Tags

NGSS.MS-LS1-2

How does a cell maintain homeostasis?

• Regulates what enters and leaves the cell
• Flexibility
• Protective barrier
• Structure and support

Tags

NGSS.HS-LS1-3

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low.
• no movement 
• molecules move everywhere

Tags

NGSS.MS-PS1-4

During osmosis

• water moves from high to low concentration
• large or oddly shaped molecules move across a cell membrane
• water moves when energy is used
• proteins are built

Tags

NGSS.MS-LS1-2

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of

• Osmosis
• Diffusion
• Equilibrium

Tags

NGSS.HS-LS1-3

Passive transport requires no

• concentration gradients
• osmosis
• motion
• energy

If there is 5 percent water inside a cell and 5 percent water outside a cell

• more water will move into the cell the cell is in a hypotonic situation

• more water will move out of the cell the cell is in a hypertonic situation

• There will be no net movement of water into or out of cells - the cell is in an isotonic situation

Which form of active transport is being shown?

• Facilitated Diffusion
• Exocytosis
• Endocytosis
• Protein Pumps

Tags

NGSS.MS-LS1-2