Macromolecules MCQ

Test your knowledge with important Macromolecules MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Macromolecules MCQs at Bissoy

• Macromolecules like Enzymes, vitamins and hormones can be classified into a single category of biological chemicals. Why?
  ক

  all of these help in regulating metabolism

  খ

  all of these are exclusively synthesized in the body of a living organism as at present

  গ

  all of these are conjugated proteins

  ঘ

  all of these enhance oxidative metabolism
• Lipids are insoluble in water because of which of the following reason?
  ক

  lipid molecules are hydrophilic

  খ

  lipid molecules are hydrophobic

  গ

  lipid molecules are neutral

  ঘ

  lipid molecules are zwitterions
• Cellulose is the most important constituent of plant cell wall. What are its constituents?
  ক

  branched chain of glucose molecules linked by (3-1, 4 glycosidic bond in straight chain and a-1, 6 glycosidic bond at the site of branching

  খ

  unbranched chain of glucose molecules linked by (3-1, 4 glycosidic bond)
• In which of the following groups are all polysaccharides?
  ক

  sucrose, glucose and fructose

  খ

  maltose, lactose and fructose

  গ

  glycogen, sucrose and maltose

  ঘ

  glycogen, cellulose and starch
• What are the most diverse macromolecules in the cell?
  ক

  lipids

  খ

  mineral salts

  গ

  proteins

  ঘ

  carbohydrates
• Amino acids and proteins are ionized at typical biological pH such that both the amino group and the carboxyl group gain hydrogen ions to become -NH3+ and -COOH, respectively.
  ক

  True

  খ

  false
• What type of macromolecule carries out catalysis in biological systems?
  ক

  proteins called enzymes

  খ

  carbohydrates called starches

  গ

  lipids called steroids

  ঘ

  nucleic acids called DNA
• Dehydration and hydrolysis reactions involve removing or adding which of the following to macromolecule subunits?
  ক

  C and O

  খ

  OH and H

  গ

  CH and NH2

  ঘ

  COOH and H
• What happens when a macromolecule undergoes hydrolysis reaction?
  ক

  protein coils into its secondary structure

  খ

  the bond between two subunits of a macromolecule is broken

  গ

  a bond is formed between two subunits of a macromolecule

  ঘ

  water breaks ionic bonds
• Assuming that all of the below given compound had the same number of carbon atoms, which of the following has the most C-H bonds?
  ক

  Unsaturated fat

  খ

  Polysaturated fat

  গ

  Polysaccharide

  ঘ

  Saturated fat
• In the formation of a macromolecule, what type of reaction would join two subunits together?
  ক

  Hydrophobic reaction

  খ

  Hydrolysis reaction

  গ

  Dehydration reaction

  ঘ

  Denaturation reaction
• In the formation of a macromolecule, what type of bond would join two amino acid subunits?
  ক

  Ionic bond

  খ

  Phosphodiester bond

  গ

  Hydrogen bond

  ঘ

  Peptide bond
• Animals store glucose in the form of which macromolecule?
  ক

  Amylose

  খ

  Glycogen

  গ

  Glycerol

  ঘ

  Cellulose
• Nucleic acids are chains of 5-carbon sugars linked by which type of bonds with an organic base protruding from each sugar?
  ক

  Amino

  খ

  Phophodiester

  গ

  Carbonyl

  ঘ

  Phosphate
• Proteins, which are tremendously complex molecules, what are their basic units or building blocks?
  ক

  Carbohydrates

  খ

  NH2

  গ

  Polypeptides

  ঘ

  Amino acids
• Amylose is soluble in which of the following solvent?
  ক

  Water

  খ

  Alcohol

  গ

  Partially soluble in alcohol

  ঘ

  Soluble in acidic solution
• There are several levels of protein structure, which is the most complex protien?
  ক

  Primary

  খ

  Secondary

  গ

  Tertiary

  ঘ

  Quaternary
• Carbohydrates are polyhydroxy compounds of _______________
  ক

  Glucose

  খ

  Oligosaccharides

  গ

  Aldehyde and ketone

  ঘ

  Glyceraldehyde
• Macromolecule described as large molecules built up from small repeating units called as which of the following?
  ক

  Biopolymer

  খ

  Dimers

  গ

  Monomers

  ঘ

  Metamers