Question No:1
Protein is described by biologists at………. levels.
[A] 1
[B] 2
[C] 3
[D] 4
Question No:2
Sequence or positional information of amino acid is given by the
[A] 2° structure
[B] 1° structure
[C] tertiary structure
[D] quaternary structure
Question No:3
In primary structure of protein
[A] Left end represent —> 1st amino acid (C-terminal amino acid)
[B] Right end represent —> Last amino acid (N terminal amino acid)
[C] Left end represent —> 1st amino acid (N-terminal amino acid)
[D] Right end represent —> 1st amino acid (C-terminal amino aci
Question No:4
Which structure is absolutely necessary for the many biological activities of proteins?
[A] 1°
[B] 3°
[C] 2°
[D] 4°
Question No:5
When assembly of more than one poly peptide occur it is known as ………. structure of protein,
[A] 1°
[B] 2°
[C] 3°
[D] 4°
Question No:6
Which of the following is correct about human Haemoglobin (Hb)?
[A] Made up to 2-α and 2-β subunits
[B] Present hi RBC
[C] Use to carry O2 and CO2
[D] All
Question No:7
Select incorrect statement from the following:
[A] Most of the enzymes are protein
[B] ‘Hb’ is example of quaternary structure of protein
[C] In primary structure of protein, left hand is N-terminal and right hand is C-terminal
[D] In protein or polypeptide, amino acids are linked by glycosidic bond
Question No:8
Which of the following possess heterocyclic ring?
[A] Adenine
[B] Guanine and Cytosine
[C] Thymine and Uracil
[D] All
Question No:9
Identify the nucleoside from the following:
A. Adenosine
B. Uridylic acid
C. Undine
D. Cytidylic acid
[A] A and B only
[B] A and C only
[C] C and D only
[D] B and C only
Question No:10
Which of the following act as a genetic material?
[A] DNA and RNA
[B] Uridylic acid
[C] Adenylic acid
[D] Gunanylic acid
Question No:11
Sugar + Nitrogen bases form
[A] Nucleoside
[B] Nucleotide
[C] Peptide
[D] Glycoside
Question No:12
Sugar + Nitrogen bases + Phosphate forms
[A] Nucleoside
[B] Nucleotide
[C] Peptide
[D] Glycoside
Question No:13
How many Nitrogen atoms are present in adenine?
[A] 3
[B] 4
[C] 5
[D] 6
Question No:14
DNA and RNA are
[A] polypeptide
[B] polynucleotide
[C] polysaccharide
[D] all
Question No:15
How much percentage of total cellular mass is formed by nucleic acid?
[A] 3
[B] 2
[C] 5-7
[D] 10-15
Question No:16
Following are purines
[A] Adenine
[B] Guanine
[C] Cytosine
[D] Both (a) and (b)
Question No:17
Following are pyramidine (substituted):
[A] Cytosine
[B] Thymine
[C] Uracil
[D] All
Question No:18
DNA contains
[A] ribose
[B] 3′ deoxyribose
[C] 5′ deoxyribose
[D] 2′ deoxyribose
Question No:19
The bond present between two nucleotides is known as
[A] phosphoester linkage
[B] phosphodiester linkage
[C] gycosidic linkage
[D] peptide linkage
Question No:20
Watson-Crick Structure of DNA is
[A] 1° structure
[B] 2° structure
[C] 3° structure
[D] 4° Structure
Biomolecules Mock Exam-3
CategoriesNEET Biology