Free MCQs & Online Quiz Practice for Exams

Q: All of the following are co-enzymes except (ETEA 2015)

A) NAD

B) FAD

C) NADP

D) ADP

Q: Oligosaccharides class of carbohydrates contain monosaccharides of about (ETEA 2015)

A) 2 to 8 units

B) 2 to 9 units

C) 2 to 10 units

D) 2 to 11 units

Q: Sucrose on hydrolysis yields (ETEA 2015)

A) Glucose and glucose

B) Glucose and fructose

C) Glucose and maltose

D) Maltose and fructose

Q: The number of hydrogen bonds between guanine and cytosine are (ETEA 2015)

A) One

B) Two

C) Three

D) Four

Q: Phosphodiester linkage is formed between (ETEA 2015)

A) Two nitrogenous bases

B) Two sugar molecules

C) Two phosphates

D) Nucleotides and phosphates

Q: Pigment combination of carotenoid is (ETEA 2016)

A) Blue green brown or red

B) Orange yellow blue or brown

C) Yellow orange red or brown

D) Blue red orange or brown

Q: Oligosaccharides are involved in the formation of (ETEA 2016)

A) Secreted proteins

B) Blood clotting factors

C) Antibodies

D) All of the above

Q: In saturated fatty acids more hydrogen is not accommodated because of (ETEA 2017)

A) Presence of single bonds between carbon atoms

B) Presence of double bonds between carbon atoms

C) Presence of triple bonds between carbon atoms

D) Absence of bond between carbon atoms

Q: Chitin is a (ETEA 2019)

A) Lipoprotein

B) Polysaccharide

C) Glycoprotein

D) Phospholipid

Q: ________ is stored in animal cells. (ETEA 2019)

A) Starch

B) Cellulose

C) Sucrose

D) Glycogen

Q: The bond that is formed between two monosaccharide units is called (ETEA 2019)

A) Ionic bond

B) Hydrogen bond

C) Peptide bond

D) Glycosidic bond

Q: Which of the following is an inactive enzyme without its cofactor? (ETEA 2006)

A) Coenzyme

B) Apo-enzyme

C) Holoenzyme

D) Denatured enzyme

Q: Which of the following is an inactive enzyme without its cofactor? (ETEA 2007)

A) Co-enzyme

B) Apo-enzyme

C) Holo-enzyme

D) Denatured enzyme

Q: Which of the following factors does not influence the activity of enzymes positively? (ETEA 2009)

A) Substrate concentration

B) pH

C) Temperature

D) Anti-enzymes

Q: All of the following are characteristics of enzymes except (ETEA 2009)

A) They increase the activation energy

B) They are specific in function

C) They possess specific active sites

D) They possess three-dimensional shapes

Q: Enzymes are basically (ETEA 2012)

A) Proteins

B) Carbohydrates

C) Hydrocarbons

D) None of the above

Q: The enzyme functions are optimum at (ETEA 2014)

A) Specific temperature

B) Specific pH

C) Specific co-enzyme

D) All of the above

Q: All of the following are co-enzymes except (ETEA 2015)

A) NAD

B) FAD

C) NADP

D) ADP

Q: The optimum pH of enzyme maltase is (ETEA 2015)

A) 4.5

B) 5.5

C) 6.1–6.8

D) 6.7–7

Q: Most of the enzymes start showing activities in the range of pH between (ETEA 2016)

A) 2–4

B) 5–9

C) 3–5

D) 10–12