Chapter 7 Cell Structure and Function

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. 

• Movements of substances through a membrane. 

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

• When pressure pushes something through a membrane. 

What macromolecules help to make the cell membrane? 

• Proteins 

• Carbohydrates 

• Phospholipids 

• All of the above 

All of the following statements are true about prokaryotic cells EXCEPT 

• No nucleus 

• They are simple and small 

• Have a cell wall 

• Have organelles 

Which of the following is the best example of osmosis? 

• NA/K Pump 

• Water moving though the cell membrane 

• Kidneys 

• Photosynthesis 

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 heads, hydrophobic tails 

• Hydrophilic heads, hydrophobic tails 

• Hydrophilic heads, hydrophilic tails 

What is an isotonic solution?

• When solutions are in equilibrium 

• When the solution has more solute 

• When the solution has less solute 

• Has a greater pressure 

Which of the following is correct about the Golgi? 

• Digests waste materials 

• Protection and Support 

• Modifies and packages molecules 

• cellular movement 

Molecules using simple diffusion move from 

• high to low concentrations 

• low to high concentrations 

• no concentrations  

• both concentrations