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WorksheetsBiochemistry
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
The general chemical formula of carbohydrate is
a)
(CH2O)n
b)
(CH2O)2n
c)
(CHO)n
d)
CnH2No
2.
Which of the following is an aldotetrose
a)
Dihydroxyacetone
b)
Glyceraldehyde
c)
Ribulose
d)
Erythrose
3.
What is the molecular formula of sucrose
a)
C12H22O11
b)
C10H20O10
c)
C6H12O6
d)
C12H20O11
4.
The only carbohydrate which is not having any chiral carbon atom is
a)
Glyceraldehyde
b)
Erythrose
c)
Dihydroxyacetone
d)
Erythrulose
5.
Select the odd one from the following.
a)
Arabinose
b)
Xylose
c)
Lyxose
d)
Erythrose
6.
A pentose sugar reported to be present in heart cells
a)
Xylose
b)
Arabinose
c)
Lyxose
d)
Xylulose
7.
Which of the following is an epimeric pair
a)
D-glucose and D-mannose
b)
D-glucose and D-galactose
c)
D-glucose and L-glucose
d)
Both A and B
8.
Which of the following is a keto tetrose
a)
Erythrulose
b)
Xylulose
c)
Sorbose
d)
Psicose
9.
Which of the following is an alpha lactone
a)
Vit. C
b)
Vit. D
c)
Vit. A
d)
Vit. K
10.
A sweetener used in sugar less gums and candies
a)
Ribitol
b)
Xylitol
c)
Inositol
d)
Mannitol
11.
Pick out the odd one from the following
a)
Deoxyribose
b)
Rhamnose
c)
Fucose
d)
Altrose
12.
Lectins are_________.
a)
Sugars specific to proteins
b)
Proteins specific to sugars
c)
Enzymes specific to carbohydrates
d)
Carbohydrates specific to enzymes
13.
Which of the following is a keto triose?
a)
Dihydroxyacetone
b)
Glyceraldehyde
c)
Ribulose
d)
Erythrose
14.
Maltose is a disaccharide of ____
a)
Glucose and galactose
b)
Glucose and glucose
c)
Glucose and lactose
d)
Fructose and lactose
15.
Niacin is the chemical name of which Vitamin?
a)
Vitamin B3
b)
Vitamin B1
c)
Vitamin B2
d)
Vitamin C
16.
Which is the Vitamin that protects us from Pellagra disease?
a)
Vitamin B5
b)
Vitamin B7
c)
Vitamin B3
d)
None of the above
17.
Retinol is the scientific name of which Vitamin
a)
Vitamin A
b)
Vitamin D
c)
Vitamin K
d)
Vitamin C
18.
Different types of Vitamins are
a)
Fat-Soluble
b)
Water-Soluble
c)
Both Fat Soluble and water Soluble
d)
None of the above
19.
Fat soluble Vitamins are
a)
Vitamin A
b)
Vitamin D
c)
Vitamin E
d)
All of the above
20.
Vitamin C is present in
a)
Tomatoes
b)
Papaya
c)
Guava
d)
All of the above
21.
Vitamin A was discovered in which year?
a)
1910
b)
1912
c)
1922
d)
1927
22.
Liver damage is caused due to the overdose of which vitamin
a)
Vitamin B1
b)
Vitamin B2
c)
Vitamin B3
d)
Vitamin D
23.
Which substance that makes a vitamin metabolically ineffective?
a)
Anti-vitamin
b)
Antioxidants
c)
Cynocobalamine
d)
Riboflavinosis
24.
Name the vitamin which are essential for the health of the brain?
a)
Vitamin B6
b)
Vitamin B9
c)
Vitamin B12
d)
All the above
25.
Which of the following is not a fat-soluble vitamin
a)
Vitamin D
b)
Vitamin K
c)
Vitamin C
d)
Vitamin A
26.
Defficiency of which vitamin causes Beri-Beri?
a)
Vitamin B12
b)
Vitamin B2
c)
Vitamin B6
d)
Vitamin B1
27.
Name the disease caused by the deficiency of Niacin?
a)
Pellagra
b)
Rickets
c)
Scurvy
d)
Pernicious anaemia
28.
Which of the following is a component of the coenzyme A?
a)
Retinol
b)
Pantothenic acid
c)
Pyridoxine
d)
Retinoic acid
29.
Megaloblastic anemia is caused due to deficiency of
a)
Cobalamin
b)
Pyridoxine
c)
Niacin
d)
Folic acid
30.
Mark the INCORRECT statement about Ascorbic acid
a)
It is a strong reducing agent
b)
It can have synthesized in the body
c)
Involves in hydroxylation of prolyl- and lysyl- residues of collagen
d)
Shows antioxidant activity
31.
Name the vitamin which functions as hormone as well as visual pigment?
a)
Thiamine
b)
Riboflavin
c)
Retinol
d)
Folic acid
32.
Which of the following vitamin serves as a hormone precursor
a)
Vitamin C
b)
Vitamin A
c)
Vitamin K
d)
Vitamin D
33.
Name the vitamin which takes part in blood clotting
a)
Vitamin E
b)
Vitamin K
c)
Vitamin D
d)
Folic acid
34.
The symptoms of retinol excess are
a)
bone fragility
b)
nausea
c)
weakness
d)
all of these
35.
Main function of insulin hormone is to
a)
increase glycogen in liver
b)
decrease glycogen in liver
c)
increase blood sugar
d)
decrease blood sugar
36.
Ascorbic acid acts as an
a)
reducing agent
b)
oxidizing agent
c)
oxidizing and reducing agent both
d)
none of the above
37.
A deficiency of thiamin produces the disease known as
a)
beri-beri
b)
scurvy
c)
cataract
d)
anemia
38.
Acyl carrier protein (ACP) plays an important role in the biosynthesis of
a)
fatty acids
b)
amino acids
c)
sugars
d)
carbohydrates
39.
Vitamin B12 (Cobalamin) is only synthesized by
a)
fishes
b)
micro-organisms
c)
plants
d)
animals
40.
Which of the following are reduced coenzymes?
a)
NADH and FADH2
b)
NAD+ and FAD
c)
ATP and GTP
d)
Coenzyme A and ubiquinone
41.
The absence of ascorbic acid in the human diet gives rise to
a)
rickets
b)
pernicious anemia
c)
cataract
d)
beri-beri
42.
Vitamins are essential because the organism
a)
can't synthesize these compounds at all
b)
can synthesize these compounds partially
c)
can't synthesize these compounds in the adequate amounts
d)
none of the above
43.
The prosthetic group biotin is a carrier of which type of molecule?
a)
Activated carbon dioxide (CO2)
b)
Ammonia
c)
Methyl group
d)
Sulfhydryl group
44.
Lipoic acid exists in
a)
oxidized form
b)
reduced form
c)
oxidized and reduced form both
d)
none of these
45.
Vitamin B12 is useful in the prevention and treatment of
a)
pernicious anemia
b)
scurvy
c)
cataract
d)
beri-beri
46.
An example of a digestive hormone is
a)
lipase
b)
pepsin
c)
amylase
d)
gastrin
47.
In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.
a)
adenine
b)
5-6 dimethylbenzimidazole
c)
hydroxycobalamin
d)
cyanocobalamin
48.
Vitamin-C is considered as a
a)
water soluble
b)
fat soluble
c)
fat and water soluble
d)
none of these
49.
The vitamin niacin is part of the __________ molecule.
a)
ferredoxin
b)
pyridoxal phosphate
c)
pyrophosphate
d)
NAD+
50.
Which of these hormones is a catecholamine?
a)
Follitropin
b)
Norepinephrine
c)
Tetraiodothyronine
d)
Tetrahydrofolate
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