- BioCheMisTry - Mcqs Pdf
- 1MCQ: Strand of RNA is made of
- A.
ribose sugar
- B.
phosphate unit
- C.
nitrogen base
- D.
all of above
- Answer D
- 2MCQ: Which of the following
activates more than 100 different enzymes?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer B
- 3MCQ: Which of the following are
obtained from fruits, vegetables, and cereals?
- A.
monosaccharides
- B.
sucrose
- C.
cellulose
- D.
starch
- Answer A
- 4MCQ: Which of the following is
not included in fat-soluble vitamins?
- A.
vitamin A
- B.
vitamin D
- C.
vitamin E
- D.
vitamin B
- Answer D
- 5MCQ: Which of the following is
used to make rectified spirit by fermentation process?
- A.
cellulose
- B.
starch
- C.
glucose
- D.
fructose
- Answer –B
- 6MCQ: Plants convert glucose (C6H12O6)
in to
- A.
starch only
- B.
cellulose only
- C.
sucrose
- D.
starch and cellulose
- Answer D
- 7MCQ: How many amino acids are
synthesized by our bodies?
- A.
10
- B.
20
- C.
30
- D.
40
- Answer - A
- 8MCQ: The condensed structural
formula of Caproic acid is
- A.
CH3-CH2-CH2-COOH
- B.
CH3-(CH2)4-COOH
- C.
CH3-(CH2)14-COOH
- D.
CH3-(CH2)16-COOH
- Answer- B
- 9MCQ: Vitamin B is necessary for
- A.
eyes and skin
- B.
energy production in cells
- C.
healing wounds and preventing colds
- D.
bones and teeth
- Answer B
- 10MCQ: Starch is an example of?
- A.
monosaccharides
- B.
oligosaccharides
- C.
polysaccharides
- D.
lipids
- Answer C
- 11MCQ: Which of the following
causes dry skin when taken in excess amount?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer - A
- 12MCQ: Deficiency of vitamin A
causes
- A.
night blindness
- B.
anemia and bleeding gums
- C.
scurvy
- D.
rickets and Osteomalacia
- Answer - A
- 13MCQ: Vitamin B is soluble in
- A.
fat
- B.
water
- C.
alcohol
- D.
ethers
- Answer B
- 14MCQ: Which of the following is
the key to the ability of DNA to store genetic information and to pass it on from generation to
generation?
- A.
double stranded structure of DNA
- B.
deoxyribose sugar
- C.
phosphate unit
- D.
nitrogen base
- Answer A
- 15MCQ: Which of the following is
obtained by heating bones and tendons in the water?
- A.
gelatin
- B.
enzyme
- C.
amylase
- D.
lactase
- Answer – A
- 16MCQ: Deficiency of vitamin D
causes
- A.
night blindness
- B.
anemia and bleeding gums
- C.
scurvy
- D.
rickets and Osteomalacia
- Answer -D
- 17MCQ: Cellulose is obtained from?
- A.
animals
- B.
microorganisms
- C.
plants
- D.
bacteria
- Answer - C
- 18MCQ: How much energy is provided
by 1g of glucose?
- A.
15.6 KJ
- B.
16.8 KJ
- C.
20 KJ
- D.
1.2 KJ
- Answer - A
- 19MCQ: How many types of vitamins
are there?
- A.
two
- B.
three
- C.
four
- D.
five
- Answer – A
- 20MCQ: The key to the ability of
DNA to pass and store genetic information is its
- A.
hydrogen bonding
- B.
double stranded structure
- C.
deoxyribose sugar
- D.
nitrogen base
- Answer B
- 21MCQ: In what form is glucose
stored in animal muscles and liver cells?
- A.
glucagon
- B.
vitamins
- C.
glycogen
- D.
starch
- Answer C
- 22MCQ: Vitamin E is necessary for
- A.
eyes and skin
- B.
energy production in cells
- C.
antioxidant
- D.
blood clotting
- Answer C
- 23MCQ: Nucleic acids were first
obtained from
- A.
blood of infected wounds
- B.
pus of infected wounds
- C.
skin
- D.
muscles
- Answer B
- 24MCQ: Which of the following used
the word 'vitamin' for the missing factors that were needed to sustain healthy growth?
- A.
C. Eijkman
- B.
F.G Hopkins
- C.
Casmir Funk
- D.
Jabar Bin Hayan
- Answer - C
- 25MCQ: Which of the following is important
in vision?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer A
- 26MCQ: Which of the following is
true about DNA?
- A.
it is present in cell nucleus
- B.
it has single strand
- C.
it has ribose sugar
- D.
it is synthesized by RNA
- Answer A
- 27MCQ: The physical state of fat
at room temperature is
- A.
solid
- B.
liquid
- C.
gas
- D.
plasma
- Answer A
- 28MCQ: Which of the following
protects our heart and kidneys from injury?
- A.
skin
- B.
muscles
- C.
lubricants
- D.
fat
- Answer D
- 29MCQ: Which of the following is
used as a catalyst in hydrogenation reaction?
- A.
Ni
- B.
Pd
- C.
Pt
- D.
all of above
- Answer D
- 30MCQ: Which of the following are
glucose and fructose?
- A.
monosaccharides
- B.
oligosaccharides
- C.
polysaccharides
- D.
starch
- Answer A
- 31MCQ: When hydrogen is added to
an alkene, the process is called
- A.
dehydration
- B.
Dehydrohalogenation
- C.
hydrogenation
- D.
hydrochlorination
- Answer C
- 32: Considering the structure
of DNA, each strand is made up of
- A.
deoxyribose sugar
- B.
phosphate unit
- C.
nitrogen base
- D.
all of above
- Answer D
- 33MCQ: Which of the following is necessary
for proper bone and tooth growth?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer D
- 34MCQ: Source of caproic acid is
- A.
butter
- B.
palm oil
- C.
beef fat
- D.
olive oil
- Answer A
- 35MCQ: In the
structure of DNA, how many strands are twisted around each other?
- A.
one
- B.
two
- C.
three
- D.
four
- Answer B
- 36MCQ: The vitamin which helps in
chemical transmission of images from the eye to the brain is
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer A
- 37MCQ: Specific organic compounds
which are required by our bodies to prevent specific diseases but cannot be produced by our
bodies are called
- A.
hydrocarbons
- B.
carbohydrates
- C.
proteins
- D.
vitamins
- Answer D
- 38MCQ: Source of butyric acid is
- A.
butter
- B.
palm oil
- C.
beef fat
- D.
olive oil
- Answer A
- 39MCQ: Which of the following is
used in the form of wood for heat, housing, and furniture?
- A.
cellulose
- B.
starch
- C.
monosaccharides
- D.
oligosaccharides
- Answer A
- 40MCQ: Raffinose is an example of
- A.
monosaccharides
- B.
disaccharides
- C.
polysaccharides
- D.
Trisaccharides
- Answer D
- 41MCQ: Anemia, bleeding gums and tongue inflammation is caused by
the
deficiency of
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer B
- 42MCQ: Which of the following is caused due to an extreme lack of proteins?
- A.
malaria
- B.
typhoid
- C.
kwashiorkor
- D.
anemia
- Answer C
- 43MCQ: Two fatty acids that are components of fats are
- A.
stearic acid and
oleic acid
- B.
butyric acid and
caproic acid
- C.
palmitic acid and
oleic acid
- D.
none of above
- Answer B
- 44MCQ: Existence of RNA is in the form of
- A.
single strand
- B.
double strand
- C.
triple strand
- D.
four strands
- Answer A
- 45MCQ: The amino acids which are no synthesized by the human body are called
- A.
essential amino acids
- B.
non essential amino
acids
- C.
simple amino acids
- D.
complex amino acids
- Answer B
- 46MCQ: Nutrition is derived by cows, cattle, goats, deer, sheep, and termites from
- A.
cellulose
- B.
starch
- C.
monosaccharides
- D.
oligosaccharides
- Answer A
- 47MCQ: Monosaccharides (simple sugars) have
- A.
oxidizing nature
- B.
reducing nature
- C.
redox nature
- D.
neutralizing nature
- Answer B
- 48MCQ: Which of the following causes a feeling of pressure inside
the head when
taken in excess amount?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer A
- 49MCQ: What happens if water-soluble vitamins are taken in excess?
- A.
they cause harm
- B.
they are readily
excreted from the body
- C.
they cause no harm
- D.
they are not excreted
from the body
- Answer B
- 50MCQ: Source of palmitic acid is
- A.
butter
- B.
palm oil
- C.
beef fat
- D.
olive oil
- Answer B
- 51MCQ: Cotton is an example of pure
- A.
cellulose
- B.
sucrose
- C.
starch
- D.
cloth
- Answer A
- 52MCQ: Which of the following are long-chain carboxylic acids?
- A.
fats
- B.
oils
- C.
proteins
- D.
fatty acids
- Answer D
- 53MCQ: Which of the following is not true about RNA?
- A.
it is synthesized by
DNA
- B.
it has deoxyribose
sugar
- C.
it has single strand
- D.
it is responsible for
directing synthesis of new proteins
- Answer B
- 54MCQ: The human body can synthesize only
- A.
12 amino acids
- B.
10 amino acids
- C.
15 amino acids
- D.
5 amino acids
- Answer B
- 55MCQ: What is the term used for the linkage which joins two amino acid units?
- A.
amino group
- B.
carboxyl group
- C.
peptide bond
- D.
dipeptide
- Answer D
- 56MCQ: Which of the following is required for the formation of blood?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer C
- 57MCQ: Which of the following acts as a thermal insulator in mammals?
- A.
skin
- B.
fat
- C.
lipids
- D.
proteins
- Answer B
- 58MCQ: Proteins that catalyze specific biological reactions without
which life would
be impossible are called
- A.
gelatin
- B.
enzymes
- C.
amylase
- D.
lactase
- Answer B
- 59MCQ: The linkage which joins two amino acid units is called
- A.
peptide bond
- B.
covalent bond
- C.
ionic bond
- D.
hydrogen bond
- AnswerA
- 60MCQ: If a lipid is liquefied at room temperature, it is called
- A.
fat
- B.
oil
- C.
proteins
- D.
ghee
- Answer B
- 61MCQ: Which of the following is added to fruit juices and flavored
drinks to
prevent scurvy and elimination of rickets?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer C
- 62MCQ: Which of the following is not true about polysaccharides?
- A.
they are amorphous
solids
- B.
they are tasteless
- C.
they are insoluble in
water
- D.
they are reducing in
nature
- Answer D
- 63MCQ: Which of the following keeps the cornea moist?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer D
- 64MCQ: The resulting molecule after joining two amino acid units is called a/an
- A.
amino group
- B.
carboxyl group
- C.
peptide bond
- D.
dipeptide
- Answer D
- 65MCQ: Which of the
following is required for the formation of blood?
- A.
vitamin
A
- B.
vitamin
B
- C.
vitamin
C
- D.
vitamin
D
- Answer C
- Answer B
- MCQ66: Which of the following is added to fruit juices and
flavored drinks to prevent scurvy and elimination of rickets?
- A. vitamin A
- B. vitamin B
- C. vitamin C
- D. vitamin D
- Answer C
- MCQ67: Which of the
following keeps the cornea moist?
- A.
vitamin
A
- B.
vitamin
B
- C.
vitamin
C
- D.
vitamin
D
- Answer A
- MCQ68: The fat-soluble
vitamin is
- A.
vitamin
B
- B.
vitamin
C
- C.
vitamin
D
- D.
vitamin
F
- Answer C
- MCQ70: Vitamin C
is necessary for
- A.
eyes
and skin
- B.
energy
production in cells
- C.
healing
wounds and preventing colds
- D.
bones
and teeth
- Answer C
- MCQ71: Vitamin K is necessary for
- A.
eyes and skin
- B.
energy production in cells
- C.
antioxidant
- D.
blood clotting
- Answer D
- MCQ72: Which of the following helps in the chemical
transmission of images from the eye to the brain?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer A
- MCQ73: Maltose is obtained from
- A.
sugarcane
- B.
fruits
- C.
cereals
- D.
plants
- Answer C
- MCQ74: By the help of fermentation, starch is converted to
- A.
rectified spirit
- B.
dextrin
- C.
cellulose
- D.
sucrose
- Answer A
- MCQ75: Which of the following is used in infant foods?
- A.
protease
- B.
amylase
- C.
diastase
- D.
lactase
- Answer D
- MCQ76: Delayed blood clotting is caused by the deficiency of
- A.
vitamin E
- B.
vitamin K
- C.
vitamin C
- D.
vitamin D
- Answer B
- MCQ77: Which of the following regulates blood calcium?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer D
- MCQ78: Which of the following helps to regulate nerve impulse
transmissions?
- A.
vitamin A
- B.
vitamin B
- C.
vitamin C
- D.
vitamin D
- Answer B
- MCQ79: Which of the following are called building blocks of
all proteins?
- A.
vitamins
- B.
amines
- C.
lipids
- D.
amino acids
- Answer D
- MCQ80: Vitamin C is soluble in
- A.
fat
- B.
water
- C.
ethers
- D.
phenols
- Answer B
