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What type of amino acid is prominently found in the human body

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L-β-amino acids

L-

D-β-amino acids

D-

none

Order these statements about

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Match the Text
1
2
3
4
5
6

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Every complete turn of helix hence forms with 3.6 amino acid residues
Stable helices often end up with charged amino acids to neutralise any dipole moments that occur that can affect stability
A
Steric configuration affects stability because of the size or interactions of the R variable group
The coil is held together by hydrogen bonds between the oxygen of C=O on a top coil and Hydrogen on N-H on bottom coil. The hydrogen bond is formed every 4 amino acid residues
The stability of this

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none

With the CORN method and NROC method in stereochemistry we must always remember compared to a lot of things in the course this is based on the fact

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The hydrogen is in the front and therefore D means anticlockwise and L means clockwise

the hydrogen is at the back

that CORN and NROC are not used

The hydrogen is at the front and we use the R and S conformation

none

What are reverse turns

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Your mum and her dad

your dad and her mum

Reverse turn for example in proline is when polypeptides turn back on itself

your dads mums dad

none

Cysteine in an odd amino acid because it also forms..

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Disulphide bridges

London forces

The sulfur can violently react with peptide bonds

Bonds with Oxygen from the surrounding

none

Ninhydrin is often found being used in crime scenes. Match how it is used

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1
2
3
4

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This is also why your finger gets stained ruhmans purple
Ninhydrin degrades the amino acid into aldehydes, ammonia and CO2 through a series of reactions the net result is ninhyrdrn in a partially reduced form
Ninhydrin is used to detect amino acid and carboxyl groups in peptides and proteins hence it will detect the presence of one for you .
The Ninhydrin then reacts with ammonia in a condensation reaction to form ruhmans purple with ammonia

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none

Order the formation of a β - pleated sheets

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1
2
3

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In the antiparallell arrangenment the sability is less favoured because hydrogen bonds are formed at an angle
β-Pleated folding occurs when 2 segments of a polypeptide chain overlap with one another and form a row of hydrogen bonds with each other. This can happen in a parallel or antiparllel arrangement
In an antiparallell arrangement the C-terminus of one segment is on the same side as the n-terminus. This means hydrogen bonds are formed directly downwards this is the more favourable sheet formed

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none

What generally describes the most accurate definition for a secondary structure

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A secondary structure can exist as helices or sheets or turns forming. This is by hydrogen bonding by NH and C=O bonds

structures made by vanderwals forces

Bonds formed by disulfide bridges

Bonds formed by electrostatic repulsion

none

What is a condensation reaction with regards to an amino acid

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your mum

teri ma

aapki maji

Well its the removal of a water group and the -OH of COOH and H of NH2 removed to make water

none

Match the following

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Match the text
An example of a Protein that is a hormone is
An example of a protein that is a receptor is
An example of a protein that is made of many linear single strands of protein and carries the haem group is

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Insulin
Myoglobin
A neurotransmitter

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none

Match the R groups of these 10 amino acids...

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Alanine (A)
Leucine (L)
Phenylalanine (F)
Glycine (G)
Sterine (S)
Lysine (K)
Aspartic Acid (D)
Histidime (H)
Proline (P)
Cysteine (C)

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-CH3
Gotta draw em
-CH2-benzene
-H
-CH2-(CH3)2
CH2-SH
(CH2)4-NH3+
Gotta draw em
CH2-OH
Gotta draw em

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none

Match the following

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Match the text
R is
COOH is
H is
NH2 is

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Amino Group
Variable group
Carboxylic acid group
Hydrogen Group

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none

The primary structure of an amino acid fits this description the best......

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Structures that contain haem groups

Oxyticin and insulin are drugs that are proteins

A simple linear covalent structure that consists of amino acids bonded by peptide bonds into a polypeptide chain arranged from the N-terminus to the C-terminus

structures that contain helices, sheets and turns forming

A coil of amino acids

none

What is a protein

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A molecule made from the triesterfication of glycerol and 3 fatty acids

A polysacharide consisting of monosacharides

A protein is a chain of peptides (amino acids) held together by peptide bonds

A polynucleotide made from nucleotides bonded together by glycosidic bonds

none

What type of protein assays are most prominently used

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BCA protein assay

Proline protease assays

Copper Based assay

Mg dependant assays