How to FRQ

How to FRQ

Unit 2 Style

Strategies

Practice makes perfect

Examine question and highlight verbs

Get your vocabulary down and define when necessary

For higher level thinking questions, claim + evidence + reason

Even if you don't know your stuff, show your thinking

Don't waste time using words that don't answer the question

Open Ended

Identify three MACROMOLECULES that are components in plasma membrane in eukaryotic cell.

Open Ended

Discuss structure and function of each.

Open Ended

Interpret and identify this structure.

What am I looking for?

PHOSPHOLIPIDS--hydrophilic phosphorous containing head, hydrophobic fatty acid tail--selectively permeable, barrier,signals, fluidity

CHOLESTEROL-- ring structure, embedded in bilayer--moderates fluidity, stabilizes membrane

PROTEINS-- polypeptides/amino acids--transport, enzyme, cell junction

Fluid Mosaic Model- important representation of cell membrane as being composed of these macromolecules that all play a function. For example, cholesterol is embedded to help regulate temperature and rigidity of phospholipids. It acts as a buffer to prevent the phospholipids to responding to cold or hot in an extreme way (keeps it fluid).