Top 500+ 10th Class Chemistry Subject Mcqs Pdf Download Chapter 13
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CHAPTER NO 13
BIOCHEMISTRY
Encircle the most appropriate answer among the following options
1 It is responsible for the transmission of genetic information:
(a) Nucleic acid
(b) Acetic acid
(c) carbonic acid
(d) oxalic acid
2 Carbohydrates are synthesized by plants through:
(a) photosynthesis
(b) respiration
(c) oxidation
(d) breathing
3 Carbohydrates are molecules:
(a) macromolecules
(b) micro molecules
(c) mili molecule
(d) mono molecule
4 The glucose is further polymerized to form:
(a) starch & cellulose
(b) starch & protein
(c) lipids & carbohydrates
(d) carbohydrates
5 Monosaccharides are sugars:
(a) simplest
(b) complex
(c) normal
(d) none of these
6 The important monosaccharides are:
(a) hexoses
(b) trioses
(c) dextrose
(d) fructose
7 Carbohydrates are
(a) crystalline solid
(b) amorphous solid
(c) semisolid
(d) both a & b
8 Monosaccharides consists of no. of carbon atoms:
(a) 3 to 9
(b) 3 to 6
(c) 4 to 8
(d) 6 to 8
9 Carbohydrates are in water:
(a) soluble
(b) insoluble
(c) moderately soluble
(d) sparingly soluble
10 Monosaccharides cannot be :
(a) hydrolyzed
(b) evaporated
(c) condensed
(d) hydrolyzed
11 Maltose a disaccharides of two molecules:
(a) glucose
(b) starch
(c) fructose
(d) sacrose
12 Nature of polysaccharides is:
(a) non-reducing
(b) reducing
(c) oxidizing
(a) non oxidizing
13 Polysaccharides is _ __ solid:
(a) amorphous
(b) crystalline
(c) dual nature
(d) soft solid
14 Source of simple sugar is:
(a) honey
(b) meat
(c) fish
(d) beaf
15 It is pure cellular:
(a) cotton
(b) silk
(c) ebonite
(d) nylon
16 Starch is found in: …
(a) cereal
(b) honey
(c) potato
(d) pulse
17 Carbohydrates is directly used by:
(a) muscles
(b) bones
(c) cartilages
(d) heart
18 Carbohydrates regulate the amount of _ in our body:
(a) sugar level
(b) energy level
(c) urine level
(d) growth level
19 Energy provided by carbohydrate is :
(a) 17 K joule
(b) 18 K joule ‘
(c) 34 K Joule
(d) 436 K joule
20 Dextrose solution contain calories of energy:
(a) 170
(b) 180
(c) 350
(d) 10
21 Amino acids are linked with each other through:
(a) peptide linkage
(b) covalent linkage
(c) hydrogen bond
(d) ionic bond
22 Percentage of protein in dry weight of cell is:
(a) 50%
(b) 90 %
(c) 60%
(d) 40%
23 Amino acids are of protein:
(a) building block
(b) non-building block
(c) cement
(d) bonds
24 Protein are essential for the formation of:
(a) protoplasm.
(b) cytoplasm .
(c) ectoplasm
(d) endoplasm
25 These are proteins:
(a) hides
(b) hooves
(c) bones
(d) caudals
26 It is found in bones:
(a) proteins
(b) lipids
(c) carbohydrates
(d) organic acids
27 Gelatin is used in:
(a) bakery items
(b) plastic
(c) glass items
(d) gems
28 Lipids are made of:
(a) fatly acids
(b) ascorbic acid
(c) fatty acid
(d) amino acids
29 Fats exists in:
(a) semi solids
(b) Amorphous solids
(c) solid
(d) liquid
30 Oil exists in:
(a) solids
(b) Semi-solid
(c) amorphous solid
(d) liquid
31 Fáts and oils are food:
(a) moderate energy
(b) high energy
(c) low energy
(d) zero energy
32 It is poor conductor:
(a) fats
(b) lipids
(c) carbohydrates
(d) proteins
33 Butter and fats are obtained from:
(a) milk
(b) eggs:
(c) meat
(d) fish
34 Plants synthesize:
(a) oil
(b) ghee
(c) custard
(d) yogurt
35 Marine source of oil is:
(a) Solomon.
(b) tiger
(c) snake
(d) salamander
36 Solomon and Wales oil is used as:
(a) Bar. B. Q.
(b) medicine.
(c) food
(d) lemonoid
37 Margarine is produced by adding – to vegetable oil:
(a) nitrogen
(b) chlorine
(c) hydrogen
(d) carbon
38 Esters of butyric acids have smell:
(a) pungent :
(b) rotten egg
(c) foul
(d) fruity
39 Ethyl butanoate smells like: –
(a) apple
(b) pineapple
(c) cherry
(d) guava
40 _is essential component living cells:
(a) organic acid
(b) oleic acid
(c) nucleic acid
(d) acetic acid
41 DNA structure was discovered in :
(a) 1953
(b) 1919
(c) 1983
(d) 1913
42 RNA stands for:
(a) mefenamic acid
(b) steric acid
(c) ribonucleic acid
(d) nucleic acid
43 RNA role as:
(a) synthesizer.
(b) messenger
(c) transporter
(d) all above
44 vitamins were discovered in:
(a) 1912
(b) 1914
(c) 1932
(d) 1924
45 4 Accessories growth factors later named vitamins by:
(a) Drudge
(b) Loren
(c) Funk
(d) De Duve
46 Fat soluble vitamins are:
(a) A, F, D, C
(b) B, C
(c) A, B, C
(d) K, D, E
47 Funk discovered vitamin:
(a) Bi(thiamin).
(b) C (creatinin)
(c) B,(sucrose)
(d) urea
48 Deficiency of vitamin D cause:
(a) rabies
(b) rickets
(c) kidney stone
(d) Arthritis
49 Disease of deficiency of vitamin A is:
(a) deafness .
(b) eye inflammation
(c) baldness
(d) rickets
50 Vitamin C is also called:
(a) nucleic acid
(b) garlic acid
(c) Ascorbic acid
(d) maleic acid