Chapter 9 : Biomolecules Flashcards
How do we prepare a substance for anaylsis?
we take the sample and grind it with Cl3CCOH using a mortar. Out of which we get a thick slurry. When we strain it with a cheese cloth we obtain tow fraction one acid soluble and the other acid insoluble
What are biomolecules?
the various compounds that are found in a living organism is called biomolecules
What do you mean by wet weight?
the total weight of the tissue without drying
What is dry weight?
the weight of the tissue after drying
What id ash?
the substance formed after burning a dry tissue is called ash
What are the compounds in the ash?
Ca, Mg, Sulphate, phosphate, hydrogen, ocygen, chlorine
Which is the alpha amino acid?
the C atom in an amino group which binds to the R is called the alpha Carbon
Number of different types of R in proteins ?
20
What is glycine?
H-
What is alanine?
HH3-
What is serine ?
CH2-OH
Name an acidic R?
glutamic acid
Name a basic R?
lysine , arganine
Name a neutral R?
valine
What is the zwitterionic form ?
where all the ions are shown in an amino acid when immersed in water
Number of carbon in palmitic acid?
16
Number of carbon in archidnic acid?
20
Name the iupac name of glycerol ?
tri hyroxy propane
What are phospholipids?
the lipids with a phosphate group is called phospholipid.
Give some examples of nucleosides?
adenine , guanine , cytosine ,uracil and thymine
Give some example of nucleotide ?
adenosine, guanosine,cytidine,thhymidine,uridine
Give some examples of primary metabolites?
H,C,N,O,N,S,Na etc
Give some examples of secondary metabolites?
pigments alkaloids terpenoids essential oils toxins etc
Give some examples of pigments?
carotenoids, anthocyanins
Give some examples of alkaloids?
morphine,codeine
Give some examples of terpanoids?
monoterpenes, diterpenes
Give some examples of essential oils?
lemon grass oil
Give some examples of toxins?
abrin, ricin
Give some examples of lectins?
concanavaline A
Give some examples of drugs?
curcumin , vinoblastin, dopa
Give some some examples of polymeric substance?
rubber, gums , cellulose
What is a micro molecule?
those molecules whose wights are less than 1000 dalton are micro molecules or biological molecules.
acid soluble
What are macro molecules?
those molecules whose weight is less than 1000 dalton is called macro molecules
acid insoluble
Why are lipids found in the macromoleular fraction?
because lipids in membranes after dissociating forms a bubble or vesicles which are not soluble and hence the lipids get into the insoluble fraction along with other macro colecules
What are the substance present in the acid pool after the dissociation ?
all the cytoplasmic composition
What are proteins ?
thses are polypeptides. They are linear chain of amino acids linked by polypeptide bonds.
What are homopolymer?
those polymer with only one repeating monomer
What are hetero polymer?
those polymers with more than one monomer unit is called hetero polymer
What are essential amino acids?
those amino acids that are not produced in our bodies are called essential amino acids
What are non essential amino acids?
those amino acids that are a produced in our bodies are called non essential amino acids.
What are some of the functions of amino acids?
they help in transport of nutrients across the cell membrane , some fight infections, some are hormones and some are enzymes