Biomolecules

Biology
3597 Views

Nucleic acids were discovered by

A
Watson and Crick
B
Khorana
C
Wilkins
D
Miescher
Hard
View solution>

One picogram (pg) is equal to how many base pairs (bp)?

A
B
C
D
Hard
View solution>

Which of the following statements is incorrect about amino acids?

A
All known -amino acids possess an asymmetric carbon atom.
B
Certain antibiotics contain some amino acids in D-isomer form.
C
If an amino acid has more than one asymmetric carbon atom, all the isomers shall be optically active.
D
None of the above.
Hard
View solution>

Which among the following statement is incorrect?

A
Protein are heteropolymers made of lipid chains.
B
Ribozymes are nucleic acids with catalytic power.
C
Nucleic acids serve as genetic material.
D
Proteins, nucleic acids and polysaccharides are the only three types of macromolecules found in the living system.
E
Collagen is the most abundant protein in the whole of the biosphere and Rubisco is the most abundant proteins in animal world.
F
Both A and E.
Hard
View solution>

The active site of an enzyme is situated in its amino acids _________ .

A
Amino groups
B
Carboxyl groups
C
R-groups
D
All the above
Hard
View solution>

Germinated barley seeds, called malt, are the source of which enzyme? 

A
zymase
B
diastase
C
maltase
D
invertase
Hard
View solution>

Which of the following are the characteristics of P-proteins?

A
Sieve cell
B
Sieve tubes of monocots
C
Sieve tubes of dicots
D
Both B and C
Hard
View solution>

Select the correct statement for a protein.

A
An average weight, stable man degrades and synthesizes 400g of protein per day.
B
Approximate half life of a average body protein is 80 days.
C
In the body proteins are constantly broken down and resynthesized.
D
All of the above.
Hard
View solution>

........... was coined by Berzelius.

A
DNA
B
Hydrogen
C
Protein
D
Hormone
Hard
View solution>