Big Idea 4: Cell Transport Review

What process occurs when WATER diffuses across a membrane?

• endocytosis
• mitosis
• osmosis
• nuclear fission 

What does “high concentration area” mean?

• Spread out
• Tightly packed together
• Uncrowded
• Spacious

When particles move from areas of high concentration to areas less concentrated, this has taken place.

• diffusion
• mitosis
• endocytosis
• photosynthesis

What does selectively-permeable mean?

• The cell controls what passes in and out of the cell
• Nothing gets through
• The cell lets only large substances through

What is diffusion?

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

Permeable means

• things can pass through
• the concentration levels are different
• it is permanent
• things are stuck

What structure is labeled A

• Marker Protein
• Receptor Protein
• Phospholipid
• Cholesterol

What structure is labeled G?

• Channel Protein
• Phospholipid
• Marker Protein
• Phosphate head

The space from H-I represents the?

• Phospholipid bilayer
• Marker protein
• Lipid tail
• Channel protein

A2 represents what part of the phospholipid?

• Hydrophilic phosphate head
• Hydrophobic lipid tail
• Cholesterol
• Hydrophobic lipid head