Proteins Flashcards
1
Q
Conjugated proteins?
A
- haemoglobin
- catalase
2
Q
What is haemoglobin?
A
- the red oxygen corrupting pigment found in RBC
- iron is present and can combine reversible with an oxygen molecule.
3
Q
What is catalase?
A
- an enzyme that increases the rate of reactions in specific reaction rate.
- is damaging to the cell if allowed to accumulate.
4
Q
Globular proteins?
A
- insulin
5
Q
What is insulin?
A
- compact, water soluble and roughly spherical.
- a hormone involved in the regulation of blood glucose concentration.
6
Q
Fibrous proteins
A
- keratin
- elastin
- collagen
7
Q
What classified as a denatured protein?
A
If the shape of the protein is broken
8
Q
Types of lipids:
A
- Triglycerides
- waxes
- steroids
- cholesterol
9
Q
What are lipids made up of?
A
- Carbon
- hydrogen
- oxygen
10
Q
What are triglycerides?
A
- combined one glycerol molecule and three fatty acid molecule.
- glycerol are alcohols
- fatty acids are from a group of molecules called carboxylic group with a hydrocarbon
11
Q
What does saturated mean?
A
- No double bonds between carbon atoms
- all bonds being used.
12
Q
What is mono-unsaturated?
A
One double bond between carbon atoms
13
Q
What are polysaturated?
A
More than one double bond between carbon atoms
14
Q
What is a phospholipid?
A
- modifies triglyceride.
- contains phosphorus, carbon, hydrogen and oxygen.
- one fatty acid chain is replaced with phosphate group.
- they have non-polar tails which are hydrophobic.
- they have polar charged heads that are hydrophilic.
- they are called surface active agents.
- they have a bilayer.
15
Q
What is cholesterol?
A
- a type of sterol
- manufactured in the liver and intestine
- important role of the formation of cell membranes
- positioned in between the phospholipids with the hydroxyl group at the periphery of the membrane
- they add stability and regulate fluidity
