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1.3 Membrane structure
IB Syllabus
4
Biology
11th Grade
05/12/2015

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Term
Which one is hydrophobic and which one is hydrophyllic, the head or the tail of phospholipids.
Definition
head = hydrophyllic, tail = hydrophobic
Term
because phospholipids have one positive and negative end, what kind of molecules are they?
Definition
polar molecules
Term
name two properties of phospholipid molecules how they are adapted to their function.
Definition
bonds form between the phosphate heads and the surrounding water creating connected membrane, huge numbers of tails in the membrane so strong membrane.
Term
What are the four functions of membrane proteins?
Definition
1. Transport (Channels for passive transport). 2. Cell to cell communication. 3. Enzymes that catalyze reactions within the cell. 4. Cell to cell adhesion
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