PRACTICE NEET PYQS ONLINE ON CLASS XI- BIOMOLECULES

SOLVE PYQS OF NEET ON CLASS XI -BIOMOLECULES

Quiz

 

1. CONCANAVALIN-A IS ...
   1.   AN ESSENTIAL OIL
   2.   A LECTIN
   3.   A PIGMENT
   4.   AN ALKALOID
2. WHICH OF THE FOLLOWING GLUCOSE TRANSPORTERS ARE INSULIN INDEPENDENT?
   1.   GLUT-II
   2.   GLUT-III
   3.   GLUT-IV
   4.   GLUT-I
3. PURINES FOUND IN BOTH DNA AND RNA ARE ......
   1.   ADENINE AND GUANINE
   2.   GUANINE AND CYTOCINE
   3.   CYTOCINE AND THIAMINE
   4.   ADENINE AND THYMINE
4. THE TWO FUNCTIONAL GROUPS CHARACTERISTICS OF SUGAR ARE ....
   1.   HYDROXYL AND METHYL
   2.   CARBONYL AND PHOSPHATE
   3.   CARBONYL AND METHYL
   4.   CARBONYL AND HYDROXYL
5. SELECT THE CORRECT MATCH:
   1.   RIBOZYME- NUCLEIC ACID
   2.   T.H. MORGAN- TRANSDUCTION
   3.   F2 X RECESSIVE PARENT- DIHYBRID CROSS
   4.   MENDEL- TRANSFORMATION
6. SELECT CORRECT STATEMENT:
   1.   HOLOENZYME= APOENZYME+ COENZYME
   2.   COENZYME= APOENZYME+HOLOENZYME
   3.   HOLOENZYME= COENZYME+COFACOR
   4.   APOENZYME=HOLOENZYME+COENZYME
7. A FAT MOLECULE IS FORMED FROM .....
   1.   THREE GLYCEROL MOLECULES AND ONE FATTY ACID MOLECULE
   2.   ONE GLYCEROL MOLECULE AND ONE FATTY ACID MOLECULE
   3.   THREE GLYCEROL MOLECULE AND THREE FATTY ACID MOECULE
   4.   ONE GLYCEROL MOLECULE AND THREE FATTY ACID MOLECULES
8. WHICH OF THE FOLLOWING ENZYME IS NOT A PROTEIN?
   1.   RIBOZYME
   2.   POLYMERASE
   3.   LIGASE
   4.   LYSOZYME
9. THE AMINO ACID TRYPTOPHAN IS THE PRESCURSOR FOR THE SYNTHESIS OF ....
   1.   MELATONIN AND SEROTONIN
   2.   THYROXINE AND TRIIODOTHRONINE
   3.   ESTROGEN AND PROGESTERONE
   4.   CORTISOL AND CORTISONE
10. WHICH OF THE FOLLOWING STATEMENTS IS WRONG?
    1.   SUCROSE IS DIASACCHARIDE
    2.   CELLULOSE IS A POLYSACHARIDE
    3.   URACIL IS PYRIMIDINE
    4.   GLYCINE IS A SULPHUR CONTAINING AMINO ACID
11. WHICH OF THE FOLLOWING IS THE LEAST LIKELY TO BE INVOLVED IN STABILIZING THE THREE DOMENSIONAL FOLDING OF MOST PROTEINS?
    1.   ELECTROSTATIC INTERACTIONS
    2.   HYDROPHOBIC INTERACTIONS
    3.   ESTER BOND
    4.   HYDROGEN BONDS
12. WHICH OF THE FOLLOWING STATEMENT IS INCORRECT?
    1.   A COMPETITIVE INHIBITOR REACTS REVERSIBLY WITH THE ENZYME TO FORM AN ENZYME INHIBITOR COMPLEX
    2.   IN COMPETITIVE INHIBITION, THE INHIBITOR MOLECULE IS NOT CHEMICALLY CHANGED BY AN ENZYME
    3.   THE COMPETITIVE INHIBITOR DOES NOT EFFECT THE RATE OF BREAKDOWN OF ENZYME SUBSTRATE COMPLEX
    4.   THE PRESENCE OF COMPETITIVE INHIBITOR DECREASES THE Km OF THE ENZYME FOR THE SUBSTRATE.
13. THE ESSENTIAL CHEMICAL COMPONENTS OF MANY COENZYMES ARE...
    1.   PROTEINS
    2.   NUCLEIC ACIDS
    3.   CARBOHYDRATES
    4.   VITAMINS
14. THE CHITINOUS EXOSKELETON OF ARTHROPODS IS FORMED BY POLYMERISATION OF.....
    1.   D-GLUCOSAMINE
    2.   N-ACETYL GLUCOSAMINE
    3.   LIPOGLYCANS
    4.   KERATIN SULPHATE AND CHONDROITIN SULPHATE
15. WHICH OF THE FOLLOWING IS NOT REDUCING CARBOHYDRATE?
    1.   MALTOSE
    2.   SUCROSE
    3.   LACTOSE
    4.   RIBULOSE 5 PHOSPHATE
16. MACROMOLECULE CHITIN IS...
    1.   NITROGEN CONTAINING POLYSACHARIDE
    2.   PHOSPHOROUS CONTAINING POLYSACHARIDE
    3.   SULFUR CONTAINING POLYSACHARIDE
    4.   SIMPLE POLYSACHARIDE
17. WHICH OF THE FOLLOWING STATEMENT IS WRONG?
    1.   ENZYMES REQUIRE OPTIMUM PH FOR MAXIMAL ACTIVITY
    2.   ENZYMES ARE HIGHLY SPECIFIC
    3.   ENZYMES ARE DENATURED AT HIGH TEMPERATURE
    4.   MOST ENZYMES ARE PROTEINS BUT SOME ARE LIPIDS
18. WHICH ONE IS THE MOST ABUNDANT PROTEIN OF ANIMAL WORLD?
    1.   TRYPSIN
    2.   HAEMOGLOBIN
    3.   COLLAGEN
    4.   INSULIN
19. TRANSITION STATE STRUCTURES OF SUBSTRATES FORMED DURING AN ENZYMATIC REACTION IS:
    1.   TRANSIENT BUT STABLE
    2.   PERMANENT BUT UNSTABLE
    3.   TRANSIENT AND UNSTABLE
    4.   PERMANENT AND STABLE
20. WHICH OF THE FOLLOWING IS NOT POLYMERIC?
    1.   PROTEINS
    2.   POLYSACCHARIDES
    3.   LIPIDS
    4.   NUCLEIC ACIDS