Free MCQs & Online Quiz Practice for Exams

Q: The center of the porphyrin ring the head region of hemoglobin is occupied by (ETEA 2010)

A) Iron

B) Magnesium

C) Sodium

D) Potassium

Q: Food is reserved in the form of glycogen by (ETEA 2010)

A) Plants

B) Animals

C) Cyanobacteria

D) Both b and c

Q: All of the following are polysaccharides except (ETEA 2011)

A) Cellulose

B) Glycogen

C) Starch

D) Lactose

Q: Which of the following is composed of lipid? (ETEA 2011)

A) Some hormones

B) Enzymes

C) Skin tendons

D) Insulin

Q: Water molecules ionize to OH⁻ and H⁺ ions in the living organism (ETEA 2011)

A) 1 out of 550 million molecules

B) 5 out of 550 million molecules

C) 10 out of 550 million molecules

D) 20 out of 550 million molecules

Q: Lipids are chemically (ETEA 2012)

A) Acids

B) Alcohols

C) Ethers

D) Esters

Q: How many atoms of oxygen in RNA are greater than DNA? (ETEA 2012)

A) One

B) Two

C) Three

D) Four

Q: Proteins carbohydrates and fats form three great classes of foodstuffs commonly called (ETEA 2012)

A) Trivirates

B) Triumvirates

C) Trisvirates

D) All of the above

Q: All of the following are polysaccharides except (ETEA 2012)

A) Lactose

B) Cellulose

C) Starch

D) Glycogen

Q: Carotenoid contains (ETEA 2012)

A) Carotenes

B) Xanthophylls

C) Chlorophyll-c

D) Both a and b

Q: Sucrose sugar is considered as (ETEA 2012)

A) Monosaccharides

B) Oligosaccharides

C) Polysaccharides

D) All of the above

Q: All amino acids found in proteins are (ETEA 2012)

A) α-amino acids

B) β-amino acids

C) Both a and β

D) None of the above

Q: Which is NOT true about amino acids (ETEA 2012)

A) They have two functional groups

B) They show both acidic and basic characteristics

C) They are the basic units of proteins

D) They do not exist in solid state

Q: Amount of DNA in bacterial cell is (ETEA 2013)

A) 1%

B) 2%

C) 3%

D) 4%

Q: Keratinized epithelium is found in (ETEA 2013)

A) Hair

B) Skin

C) Bone

D) Muscle

Q: The two chains of DNA occur side by side in a (ETEA 2013)

A) Straight direction

B) Parallel but straight

C) Parallel but opposite

D) Parallel opposite and folded spirally

Q: Lipids are naturally occurring substances which are chemically (ETEA 2013)

A) Proteins

B) Amino acids

C) Carbohydrates

D) Esters

Q: Fatty acids are (ETEA 2014)

A) Unsaturated dicarboxylic acids

B) Long chain alkanoic acids

C) Aromatic carboxylic acids

D) Aromatic dicarboxylic acids

Q: Polyhydroxy aldehydes or ketones are known as (ETEA 2014)

A) Carbohydrates

B) Proteins

C) Lipids

D) Vitamins

Q: High molecular mass compound was hydrolyzed the product was analyzed and found to be amino acid The compound is (ETEA 2014)

A) Protein

B) Carbohydrate

C) Lipid

D) Vitamins