Chapter 9 Biomolecules MCQs for Class 11 Biology
Here students can practice Chapter 9 Biomolecules MCQs for Class 11 Biology. All the MCQs are divided into several sub-pages. Each page has 40 MCQs, for the next page just scroll down and click on the buttons. Also you can practice Class 11 Biology MCQs (Multiple Choice Questions) for other chapters.
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Q 1.: Which enzyme is the most specific?
Q 2.: A proteinaceous product is
(C) Silk and Wool
Q 3.: Enzymes are functional at
Q 4.: Which enzyme is useful as colour brightening agent in detergent industry?
Q 5.: The richest energy compound is
(A) Creatinine phosphate
Q 6.: An organic substance which binds to enzyme and is essential for activity of enzyme is
Q 7.: Which one of the following amino acids was not found to be synthesised in Miller’s experiment ?
(B) Aspartic acid
(C) Glutamic acid
Q 8.: About 98% mass of every living organism is composed by just six elements including C,H,N,O and
(A) Mg and Na
(B) Ca and P
(C) P and S
(D) S and Mg
Q 9.: Allosteric modulation is due to inhibition action of enzyme by
(A) Competitive inhibition
(B) Substrate concentration
(C) Products of reaction
(D) Enzyme concentration
Q 10.: Which of the following is a disaccharide?
Q 11.: Hydrolysis of lipid yields
(B) Fatty acids and glycerol
(C) Mannose and glycerol
(D) Maltose and fatty acids
Q 12.: Which of the following is an example of structural protein
(D) All of these
Q 13.: Cellulose is a polymer of
Q 14.: Feedback inhibition of an enzymatic reaction is caused by
(C) End product
(D) Rise in temperature
Q 15.: The aleurone layer in maize grain is specially rich in
Q 16.: The enzyme which converts corn starch into fructose rich corn syrup is
(D) All of these
Q 17.: Which amino acid is denoted by symbol ‘F’?
Q 18.: Benedict’s test is conducted to confirm the presence of
(B) Reducing sugar
Q 19.: A nucleoside is
(A) Purine / pyrimidine + phosphate
(B) Purine / pyrimidine + sugar
(C) Pyrimidine + purine + phosphate
(D) Purine + sugar + phosphate
Q 20.: Quaternary structure of protein has
(A) Four subunits
(B) Either α- or β-form
(C) No relation to protein function
(D) Depends on primary structure of individual polypeptides
Q 21.: Holoenzyme is an/ a
(A) Nonprotein and apoenzyme
(B) Protein and apoenzyme
(C) Enzyme protein and coenzyme
(D) Enzyme nonprotein and coenzyme
Q 22.: Which of the following is not a conjugated protein?
Q 23.: Which pair of nitrogen bases is wrongly matched?
(A) Guanine, Adenine – Purines
(B) Thymine, Uracil – Pyrimidines
(C) Adenine, Thymine – Purines
(D) Uracil, Cytosine – Pyrimidines
Q 24.: Sugar present in milk
Q 25.: An essential fatty acid is
(A) Palmitic acid
(B) Arachidonic acid
(C) Stearic acid
(D) Arachidic acid
Q 26.: Benedict’s reagent test is conducted to confirm the presence of
(A) Polysaccharides like starch
(C) Reducing sugars
Q 27.: Paraffin wax is
(C) Monohydric alcohol
Q 28.: Which one is the sweetest sugar?
Q 29.: The substance, which is metal ion essential for the normal functioning of enzyme is called
(D) None of these
Q 30.: The haploid content of human DNA is
(A) 3.2 × 109 bp
(B) 3.3 × 109 bp
(C) 4.6 × 106 bp
(D) 48502 bp
Q 31.: Activity of an enzyme is least affected by
(B) Concentration of substrate
(C) Concentration of enzyme
(D) Original activation energy of the system
Q 32.: Meselson and Stahl experiment proved
(A) DNA is a genetic material
(B) Central dogma
(D) Semi-conservative DNA replication
Q 33.: Sucrose, a common table sugar is composed of
(A) Glucose and fructose
(B) Glucose and galactose
(C) Fructose and galactose
(D) None of the above
Q 34.: Table sugar consists of
Q 35.: The ‘Repeating unit’ of glycogen is
Q 36.: Which one of the following nitrogenous bases is seen only in RNA?
Q 37.: Which one is diaminodicarboxylic amino acid?
(D) Aspartic acid
Q 38.: Class enzymes contained in lysosome is
Q 39.: Amino acid that acts as carrier of ammonia from skeletal muscle to liver is
Q 40.: Chitin is a
(B) Nitrogenous polysaccharide
We hope that these Chapter 9 Biomolecules MCQs for Class 11 Biology helped you in learning new concepts. All questions are based on NCERT syllabus and some of them have been asked in various competitive exams. You can go to the next pages to practice more for Chapter 9 Biomolecules MCQs for Class 11 Biology, click on the question range given above.
Also you can practice Class 11 Biology MCQs (Multiple Choice Questions) for other chapters.