Unit III Cells Review

What characteristic defines this organism as prokaryotic?

• Ability to move
• Ability to respond
• Shape and size
• Lacking of membrane-bound organelles

Tags

NGSS.MS-LS1-1

Which structures are found in plant cells, but not in animal cells?

• Cell membranes and mitochondria
• Vacuoles and cholorplasts
• Cell walls and cytoplasm
• Chloroplasts and cell walls

What kind of transport does not require energy?

• Active 
• Vacuole 
• Passive 
• Na/K Pump 

What is something that prokaryotic and eukaryotic cells have in common?

• They have a nucleus. 
• They are multi-cellular. 
• They have DNA. 
• They have organelles that are membrane-bound.

What is facilitated diffusion?

• Transport that uses proteins to help move molecules across the membrane down its concentration gradient.

• Movements of substances through a membrane against its concentration gradient.

• When molecules spread from High to Low concentration on their own.

• When pressure pushes something through a membrane.

Movement of materials through a vesicle into the cell that requires energy is

• exocytosis

• endocytosis

• osmosis

• simple diffusion

What are the 2 parts of a phospholipid?

• Hydrophobic head, hydrophilic tails

• Hydrophobic head, hydrophobic tails

• Hydrophilic head, hydrophobic tails

• Hydrophilic head, hydrophilic tails

What is an isotonic solution?

• When both solutions (inside the cell and outside the cell) are in equilibrium

• When the solution outside of the cell has more solute

• When the solution outside of the cell has less solute

• When the outside of the cell has a greater pressure

Molecules using simple diffusion move from 

• high to low concentrations 
• low to high concentrations 
• no concentrations  
• both concentrations  

Osmosis is the movement of... 

• salt 
• sugar 
• water 
• none of these 

Tags

NGSS.MS-LS1-3