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Ferrocene is :
1. Fe(${\eta }^{\mathit{5}}$-C₅H₅)₂
2. Fe(${\eta }^2$-C₅H₅)₂
3. Cr(${\eta }^{\mathit{5}}$-C₅H₅)₅
4. Os(${\eta }^{\mathit{5}}$-C₅H₅)₂

Phospholipids are esters of glycerol with
1. one carboxylic acid residue and two phosphate groups
2. three phosphate groups
3. three carboxylic acid residues
4. two carboxylic acid residues and one phosphate groups

Compound that gives positive Fehling's solution test is : 
1. Sucrose
2. Glucose
3. Fat
4. Protein

Which of the following is the sweetest sugar?
1. Sucrose
2. Glucose
3. Fructose
4. Maltose

Which one of the following sets of monosaccharides forms sucrose ?
1. a-D-galactopyranose and a-D-glucopyranose
2. a-D-glucopyranose and b-D-fructofuranose
3. b-D-glucopyranose and a-D-fructofuranose
4. b-D-glucopyranose and b-D-fructofuranose

a-D-(+)-glucose and b-D-(+)-glucose are

The couplings between base units of DNA is through : 

Which of the following does not exihibit the phenomena of mutarotation?
1. (+) Sucrose
2. (+) Lactose
3. (+) Maltose
4. (-) Fructose

RNA and DNA are chiral molecules, their chirality is due to
1. L-sugar component
2. chiral bases
3. chiral phosphate ester units
4. D-sugar-component

The correct option about the presence of  H-bond in nucleotides is: 
1. A-T, G-C
2. A-G, T-C
3. G-T, A-C
4. A-A, T-T

Glycolysis is
1. oxidation of glucose to pyruvate
2. conversion of glucose to haem
3. oxidation of glucose to glutamate
4. conversion of pyruvate to citrate

Which is not a true statement?
1. a-carbon of a-amino acid is asymmetric except glycine
2. All proteins are found in L-form
3. Human body can synthesis all proteins they need
4. At pH = 7 both amino and carboxylic groups exist in ionised form

An amine among the following that acts as hormone is : 
1. Thyroxine
2. Oxypurin
3. Insulin
4. Progesterone

An example of biopolymer is
1. teflon
2. neoprene
3. nylon-66
4. DNA

Among the following  non-reducing sugar is : 
(1) Glucose
(2) Fructose
(3) Sucrose
(4) Galactose

When glucose is reacted with phenyl hydrazine then osazone is formed. In this reaction how many phenyl hydrazine molecules are used ?
1.  1
2.  2
3.  3
4.  4

Sucrose on treatment with conc. HCl produces:-
(1) Glucose
(2) Fructose
(3) Glucose + Fructose
(4) Maltose

Which type of amino acid is lysine ?
1. b - amino acid
2. Acidic
3. Basic
4. Neutral

The above process in which a and b form remain in equilibrium with acyclic form and a change in optical rotation is observed which is called as–
(1) Mutarotation
(2) Epimerisation
(3) Condensation
(4) Inversion

At iso-electric point:
(1) conc. of cation is equal to conc of anion
(2) Net charge is zero.
(3) Maximum conc. of di-polar ion (Zwitterion) will be present
(4) All of the above

Which amino acid does not contain a chiral center?
1. Valine
2. Leucine
3. Glycine
4. Iso-leucine

Which of the following pair gives same phenyl osazone ?
(1) D-Glucose and D-Allose
(2) D-Glucose and D-Alfrose
(3) D-Glucose and D-Mannose
(4) D-Glucose and D-Talose

Proteins mainly contain:
(1) C, H, O and N
(2) only C and H
(3) C, H and O
(4) N and H

The main structural feature(s) of protein is/are:
1. The ester linkage
2. The ether linkage
3. The peptide linkage
4. All of these

Keratin, a structural protein is present in:
1. hair
2. skin
3. wool
4. All of the above

Blood protein is:
1. Albumin
2. Haemoglobin
3. Both (1) and (2)
4. None of the above

A vitamin which plays a vital role in the coagulating property of blood is:-
(1) vitamin A
(2) vitamin D
(3) vitamin B
(4) vitamin K

Which is not a poison for enzymes?
(1) CN^-                       
(2) Fe³⁺
(3) Pb²⁺                     
(4) ${\mathrm{AsO}}_4^{3-}$

The non-proteinous substances which certain enzymes required for their activity are called:
(1) catalysts                     
(2) inhibitors
(3) co-enzymes                 
(4) epimers

Antibodies are?
(1) Carbohydrates
(2) proteins
(3) phospholipids
(4) lipids

Which of the following statements about enzymes is incorrect?
(1) The catalytic action of an enzyme is not specific
(2) An enzymatic reaction is highly sensitive to temperature
(3) The catalytic action of enzymes is due to their capacity to lower the energy of activation of a particular reaction
(4) None of the above

An antigen develops antibodies which protect the body from their harmful effects. The antibodies
are:-
(1) immunoglobulins
(2) phospholipids
(3) albumins
(4) lymphocytes

 
(1) B
(2) C
(3) D
(4) E

Which of the following is protein hormones?
1. Insulin
2. Oxytocin
3. Both (1) and (2)
4. None of the above

The function of DNA is:

Which one of the following vitamins contains a metal atom?
1. Riboflavin
2. Vitamin B₁₂
3. Vitamin A
4. Vitamin B₆

Adenosine is an example of:
(1) nucleotide
(2) nucleoside
(3) purine base
(4) pyrimidine base

The incorrect statement among the following is:

In a protein molecule, various amino acids are linked together by
(1) b-glycosidic bond
(2) peptide bond
(3) dative bond
(4) a-glycosidic bond

Which of the following hormones is produced under the condition of stress which
stimulates glycogenolysis in the liver of human beings?
1. Thyroxin               
2. Insulin
3. Adrenaline             
4. Estradiol

Deficiency of vitamin B₁ causes the disease
1. convulsions
2. beri-beri
3. cheilosis
4. sterility
 
 

Which one of the following sets of monosaccharides forms sucrose?
1. a-D-galactopyranose and a-D-glucopyranose
2. α-D-glucopyranose and   b-D-fructofuranose
3. b-D -glucopyranose and a-D fructofuranose
4. α-D-glucopyranose and  b-D-fructopyranose

Which one of the following does not exhibit the phenomenon of mutarotation ?
1. (+) Sucrose
2. (+) Lactose
3. (+)Maltose
4. (-)Fructose

During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process
$\mathrm{Proteins}<mspace\; width="1em"></mspace>\stackrel{\mathrm{Enzyme}<mspace\; width="1em"></mspace>\left(\mathrm{a}\right)}{\to }<mspace\; width="1em"></mspace>\mathrm{Polypeptides}<mspace\; width="1em"></mspace>\stackrel{\mathrm{Enzyme}<mspace\; width="1em"></mspace>\left(\mathrm{B}\right)}{\to }<mspace\; width="1em"></mspace>\mathrm{Amino}<mspace\; width="1em"></mspace>\mathrm{acids},$
are respectively:
(1) amylase and maltase
(2) diastase and lipase
(3) pepsin and trypsin
(4) invertase and zymase
 

The human body does not produce
(1) DNA
(2) vitamins
(3) hormones
(4) enzymes