Related Questions
Major protein in connective tissue is
Myosin
Collagen
Melanin
Keratin
One of the following is a simple protein.
Albumin
Hemoglobin
Mucin
Casein
Silk consists of
Central core of sericin
Central core of fibroin
Both (a) and (b)
A fine mixture of fibroin and sericin
The globular proteins undergo structural changes, in response to extremes of pH or temperature, the process called
Renaturation
Denaturation
Combination
Both (a) and (b)
Which protein plays a crucial role in blood clotting?
Collagen
Keratin
Fibrinogen
Myosin
Which form of keratin is present in human hair?
Parallel ฮฒ-sheet
ฮฑ-helix
Antiparallel ฮฒ-sheet
None of these
Basic structure of proteins was given by
Linus Pauling and Robert Corey
Emil Fischer
Frederick Sanger
James Watson and Francis Crick
A novel protein was discovered containing a unique amino acid with a side chain composed of a selenol group (-SeH). Compared to a cysteine residue (-SH) in a similar protein, this selenol-containing amino acid would MOST likely exhibit which property?
Increased reactivity towards oxidizing agents
Decreased reactivity towards oxidizing agents
Identical reactivity towards oxidizing agents
Formation of stronger disulfide bonds
Which statement correctly describes the N-terminal of a polypeptide chain?
It has a free amino group.
It has a free carboxyl group.
It represents the first amino acid in the chain.
It is involved in the formation of peptide bonds with other amino acids.
Select the wrong statement.
The building blocks of lipids are amino acids
Majority of enzymes contain a non-protein part called the prosthetic group
The thylakoids are arranged one above the other like a stack of coins forming a granum
Crossing over occurs at pachytene stage of meiosis-I
