A macromolecule is a very large molecule, whic is commonly created by polymerization of smaller subunits. Macromolecues have three conventional biopolymers (nucleic acids, proteins, and carbohydrates) as well as non-polymeric molecules with large molecular mass such as lipids and macrocycles.
The individual constituent molecules of macromolecules are called monomers.
In - class notes
Cell membrane serves as a security wall.
The sturcture of cell membrane:
1) bilayer, which is phospholipid (phosphate and fat)
2) Imbedde protein
3) cholestera (fluid shape)
4) carbohydrate ( C, H, O)
5) Glycoprotein (combination of imbedden protein and carbohydrate)
* #1 is hydrophobic, afraid of water
# 2, 3, 4, 5 are hydrophilic, like to engage with water
Function of glycoprotein is that it chemically communicates with cells.
Function of imbedded protein: 1) transport 2) enzymatic activity 3) signal transduction / passing signal 4) cell - cell regonition 5) intercellular joining 6) attachment to the cell and protein
In - class notes
Cell membrane serves as a security wall.
The sturcture of cell membrane:
1) bilayer, which is phospholipid (phosphate and fat)
2) Imbedde protein
3) cholestera (fluid shape)
4) carbohydrate ( C, H, O)
5) Glycoprotein (combination of imbedden protein and carbohydrate)
* #1 is hydrophobic, afraid of water
# 2, 3, 4, 5 are hydrophilic, like to engage with water
Function of glycoprotein is that it chemically communicates with cells.
Function of imbedded protein: 1) transport 2) enzymatic activity 3) signal transduction / passing signal 4) cell - cell regonition 5) intercellular joining 6) attachment to the cell and protein
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