Bio Molecules Flashcards
Name the covalent bond between two adjacent amino acids in a chain of amino acids
Peptide bind
What reaction involves breaking bonds
Hydrolysis
Water is needed
Describe the properties of triglyceride
Contains only elements of carbon,hydrogen and oxygen Insoluble in water Contains glycerol Contains Ester binds Contains fatty acids Energy store molecules
What are the properties of phospholipid
Insoluble in water Contains glycerol Contains Ester bonds Important in membrane structure Fatty acids Contain a phosphate group
Describe cholesterol
Helps regulate cell fluidity
Contains carbon, hydrogen and o2
Insoluble in water
Important in membrane structure
How do you test for lipids
Emulsion test
Add ethanol and if cloudy
Lipid present
What are the properties found in primary protein
Peptide bond
Sequence of amino acid
What properties are for secondary protein
Hydrogen bond forms
Initial folding
Where do you find 3D and ionic bonds
Tertiary structure
Give a characteristics of quaternary structure
Alpha or beta subunits
Several different polypeptide chains - way they assemble together
Give three examples wheee hydrogen bonds are found in biological molecules
Protein secondary structure
Tertiary structure
Cellulose
State two roles of cholesterol in living organisms
Regulates fluidity of the phospholipid bilayer
Making vitamin D
Making bile
Give one feature of the structure of carbohydrate
Contains C H and O
6 membered ring
What is the function of High density lipoprotein
Carries cholesterol from the tissue to the liver
Reduces blood cholesterol
Reduces deposition of fat
What is the involvement of low density lipoprotein
Carries cholesterol from liver to tissue
Raises blood cholesterol
Increase deposition
Explain why glycogen makes a good storage molecule
Compact
Insoluble
Lots of branches for enzymes to attach
What is one function of alpha glucose
Used for respiration
What is the general structure of amino acids
Carboxyl group (-COOH)
Amino acid group (-NH2)
All attached to a carbon atom
What molecule is released as a byproduct when the amino terminal of one amino acid reacts with the carboxyl terminal or another amino acid?
Water
Describe how R groups can interact determine the tertiary structure of a protein
- some R grounds attract or repel
- disulfide, bridges
- hydrogen bonds
- hydrophilic R groups on outside molecule can be in contact with molecules
What are the three structure differences between glycogen and collagen
Polysaccharide / polypeptide
Alpha glucose/ amino acid
Branched/linear
Describe how a second amino acid would bind with to another amino acid
Peptide bond
Between the amine group and carboxyl group
Condensation reaction
What properties does collagen have which makes ur suitable in ligaments
Strong
Flexible
Not elastic
Explain how hydrogen bonds form
Attraction of another water molecule of delta negative oxygen and delta positive hydrogen
