Membrane Transport EOC REVIEW

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

Tags

NGSS.MS-LS2-3

What process occurs when WATER diffuses across a membrane?

• endocytosis
• mitosis
• osmosis
• nuclear fission 

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

This occurs when the molecules are the same throughout. 

• homeostasis 
• diffusion 
• active transport 
• equilibrium 

Tags

NGSS.HS-PS1-6

Which form of active transport is being shown?

• Facilitated Diffusion
• Exocytosis
• Endocytosis
• Protein Pumps

Which form of active transport is being shown?

• Pinocytosis
• Endocytosis
• Exocytosis
• Osmosis

Channels and sodium-potassium ion pumps in the cell membrane that act like gates to help carry particles across the membrane are made up of ______________

• proteins
• carbohydrates
• nucleotides
• fatty acids

Which types of molecules most likely move across membranes via diffusion?

• Large, bulky molecules
• Polar molecules
• Charged ions
• Small, nonpolar molecules like oxygen and CO2

The grey shaded areas in the middle of the membrane are

• phospholipid bilayer
• protein
• hydrophobic head
• hydrophobic tail