Vitamin A is necessary for

  • eyes and skin
  • energy production in cells
  • healing wounds and preventing colds
  • bones and teeth

Nucleotides consist of

  • nitrogenous base
  • pentose sugar
  • phosphate group
  • all of above

Carbohydrates which form 2 to 9 molecules of simple sugars upon hydrolysis are called

  • monosaccharides
  • oligosaccharides
  • polysaccharides
  • starch

Which of the following contains a larger proportion of saturated fatty acid units?

  • fats
  • oils
  • lipids
  • proteins

Which of the following is true about polysaccharides?

  • they are white crystalline solids
  • they have sweet taste
  • they are soluble in water
  • they are non-reducing in nature

A fat-soluble vitamin Dissolves in

  • fat
  • water
  • ethers
  • phenols

Sucrose, lactose, and maltose are

  • monosaccharides
  • oligosaccharides
  • polysaccharides
  • vitamins

Which of the following causes hard deposits in kidneys and joints when taken in excess amount?

  • vitamin A
  • vitamin B
  • vitamin C
  • vitamin D

Amino acids that can be synthesized by our bodies are called

  • essential amino acids
  • non-essential amino acids
  • peptide bonds
  • proteins

A water-soluble vitamin Dissolves In

  • fat
  • water
  • alcohol
  • ether

The layer of fat under mammalian skin acts as an

  • electric insulator
  • thermal insulator
  • protection from germs
  • protection from viruses

Which of the following is a protein coded by DNA?

  • amylase
  • insulin
  • pepsin
  • lipase

Which of the following is used as common table sugar?

  • glucose
  • fructose
  • maltose
  • sucrose

Which of the following is present in cereals, wheat, barley, rice, maize, potato, sweet potato, etc.?

  • sucrose
  • glucose
  • fructose
  • starch

On hydrolysis, all proteins produce

  • amines
  • peptide bonds
  • amino acids
  • dipeptide

Deficiency of vitamin K causes

  • sterility
  • hemorrhage
  • scurvy
  • rickets and Osteomalacia

Which of the following is true about oligosaccharides?

  • they are white crystalline solids
  • they are insoluble in water
  • they cannot be hydrolyzed
  • they have sour taste

What is formed when sucrose undergoes hydrolysis?

  • glucose
  • glucose and fructose
  • glucose and galactose
  • glucose and glucose

Long-chain carboxylic acids are named as

  • lipids
  • fatty acids
  • phospholipids
  • cholesterol

1g of glucose (C6H12O6) provides energy

  • 10KJ
  • 160KJ
  • 15.6KJ
  • 80KJ

Which of the following is not included in the composition of lipids?

  • cholesterol
  • sex hormones
  • vitamins
  • amino acids

Which of the following is used in the process of taking the human gene for insulin production?

  • e. coli
  • virus
  • amoeba
  • fungi

What are the antibodies that help us to fight against diseases?

  • small protein molecules
  • small carbohydrate molecules
  • large protein molecules
  • large lipid molecules

Structure of DNA was discovered by

  • J.Watson only
  • Francis Crick only
  • F.G Hopkins
  • J.Watson and Francis Crick

Which of the following is the main sugar in milk and dairy products?

  • glucose
  • sucrose
  • maltose
  • lactose

Which of the following is further classified as trioses, tetroses, pentoses, hexoses, etc.?

  • monosaccharides
  • oligosaccharides
  • polysaccharides
  • starch

Complex nitrogenous substances that produce amino acids on complete hydrolysis are called

  • proteins
  • vitamins
  • lipids
  • carbohydrates

A component of plant or animal tissue insoluble in water is called

  • protein
  • carbohydrate
  • vitamin
  • lipids

Deficiency of vitamin B causes

  • night blindness
  • anemia and bleeding gums
  • scurvy
  • rickets and Osteomalacia

A compound or substance produced by living organisms is called

  • hydrocarbon
  • organic compound
  • natural product
  • artificial product
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