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NEET

Biomolecules

Biology

Previous Years Questions

MCQ (Single Correct Answer)

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In the enzyme which catalyses the breakdown of: H2O2 $$\to$$ H2O + O2 the prosthetic group is :...
NEET 2022 Phase 2
Given below are two statements: Statement I : Amino acids have a property of ionizable nature of $$-$$NH2 and $$-$$COOH ...
NEET 2022 Phase 2
If DNA contained sulfur instead of phosphorus and proteins contained phosphorus instead of sulfur, what would have been ...
NEET 2022 Phase 2
Choose the incorrect enzymatic rection:
NEET 2022 Phase 2
Which of the following pair represents free living nitrogen fixing aerobic bacteria?
NEET 2022 Phase 2
Primary proteins are also called as polypeptides because :
NEET 2022 Phase 2
Match List-I with List-II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:soli...
NEET 2022 Phase 2
When a carrier protein facilitates the movement of two molecules across the membrane in same direction, it is called...
NEET 2022 Phase 2
Read the following statements on lipids and find out correct set of statements : (a) Lecithin found in the plasma membra...
NEET 2022
Following are the statements with reference to 'lipids'.(1) Lipids having only single bonds are called unsaturated fatty...
NEET 2021
Match List-I with List-II. .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:soli...
NEET 2021
Which of the following are not secondary metabolites in plants?
NEET 2021
Identify the basic amino acid from the following
NEET 2020 Phase 1
Identify the wrong statement with reference to the gene ā€˜Iā€™ that controls ABO blood groups.
NEET 2020 Phase 1
Match the following (a) Inhibitor of catalytic activity (i) Ricin (b) Possess peptide bonds ...
NEET 2020 Phase 1
Which one of the following is the most abundant protein in the animals?
NEET 2020 Phase 1
Identify the substances having glycosidic bond and peptide bond, respectively in their structure
NEET 2020 Phase 1
Concanavalin A is :
NEET 2019
Consider the following statements : (A) Coenzyme of metal ion that is tightly bound to enzyme protein is called prosthet...
NEET 2019
The two functional groups characteristic of sugars are
NEET 2018
Which of the following are not polymeric?
NEET 2017
Which of the following statements is correct with reference to enzymes?
NEET 2017
Which one of the following statements is wrong?
NEET 2016 Phase 1
A typical fat molecule is made up of
NEET 2016 Phase 1
Which of the following describes the given graph correctly? ...
NEET 2016 Phase 2
A non-proteinaceous enzyme is
NEET 2016 Phase 2
Which of the following is the least likely to be involved in stablishing the three-dimensional folding of most proteins?
NEET 2016 Phase 2
Which one of the following statements is incorrect?
AIPMT 2015 Cancelled Paper
The chitinous exoskeleton of arthropods is formed by the polymerisation of
AIPMT 2015
Which of the following biomolecules does have a phosphodiester bond?
AIPMT 2015
Which one of the following is a non - reducing carbohydrate?
AIPMT 2014
Select the option which is not correct with respect to enzyme action.
AIPMT 2014
Which of the following statements about enzymes is wrong?
NEET 2013 (Karnataka)
The figure shows a hypothetical tetrapeptide portion of a protein with parts labelled A - D. Which one of the following ...
NEET 2013 (Karnataka)
Uridine, present only in RNA is a
NEET 2013 (Karnataka)
The essential chemical components of many coenzymes are
NEET 2013
Transition state structure of the substrate formed during an enzymatic reaction is
NEET 2013
Macromolecule chitin is
NEET 2013
A phosphoglyceride is always made up of
NEET 2013
Which one of the following biomolecules is correctly characterized?
AIPMT 2012 Mains
Which one of the following is wrong statement?
AIPMT 2012 Prelims
The given diagrammatic representation shows one of the caregories of small molecular weight organic compounds in the liv...
AIPMT 2012 Prelims
Which one is the most abundant protein in the animal world?
AIPMT 2012 Prelims
Which one out of A - D given below correctly represents the structural formula of the basic amino acid? ...
AIPMT 2012 Prelims
Which one of the following structural formulae of two organic compounds is correctly identified along with its related f...
AIPMT 2011 Prelims
Three of the following statements about enzymes are correct and one is wrong. Which one is wrong?
AIPMT 2010 Mains
The curve given below shows enzymatic activity in relation to three conditions (pH, temperature and substrate concentrat...
AIPMT 2011 Prelims
The figure given below shows the conversion of a substate into product by an enzyme. In which one of the four options (a...
AIPMT 2010 Mains
Modern detergents contain enzyme preparations of
AIPMT 2008
A competitive inhibitor of succinic dehydrogenase is
AIPMT 2008
Cellulose is the major component of cell walls of
AIPMT 2008
Carbohydrates are commonly found as starch in plants storage organs. Which of the following five properties of starch (1...
AIPMT 2008
About 98 percent of the mas of every living organism is composed of just six elements including carbon, hydrogen, nitrog...
AIPMT 2007
An organic substance bound to an enzyme and essential for its activity is called
AIPMT 2006
Carbohydrates, the most abundant biomolescule on earth, are produced by
AIPMT 2005
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by
AIPMT 2005
Which one of the following statements regarding enzyme inhibition is correct?
AIPMT 2005
The catalytic efficiency of two different enzymes can be compared by the
AIPMT 2005
Which of the following is the simplest amino acid?
AIPMT 2005
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these
AIPMT 2005
Which one of the following enzymes, is copper necessarily associated as an activator?
AIPMT 2004
The major role of minor elements inside living organisms is to act as
AIPMT 2003
Lipids are insoluble in water because lipid molecules are
AIPMT 2002
Which of the following is a reducing sugar?
AIPMT 2002
Enzyme first used for nitrogen fixation
AIPMT 2001
Which of the following have carbohydrate as prosthetic group?
AIPMT 2000
ATP is
AIPMT 2000
Which factor is responsible for inhibition of enzymatic process during feedback?
AIPMT 2000
Enzymes are not found in
AIPMT 2000
Role of enzyme in reactions is to/as
AIPMT 2000

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