NEET Biology: Medical Entrance Biology Questions and Answers

Useful for Medical Entrance Exams: AIPMT / AFMC /JIPMER / AIIMS / JIPMER /Manipal UGET / CMC Vellore / AMU/ BHU

AIPMT Biology Previous Questions and Answers

1. According to Oparin, which one of the following was not present in the primitive atmosphere of the earth (AIPMT, 2004)
origin of life
a) oxygen 
b) methane 
c) hygrogen 
d) water vapours

2. Which one of the following is not correctly matched?
a) Streptomyces - Antibiotic 

b) Serratia - Drug selection 
c) Spirulina- Single cell protein 
d) Rhizobium - Biofertilizer

3. When a fresh water protozoan possessing a contractile vacuole is placed in a glass containing marine water, the vacuole will
a) increase in number 

b) increase in size 
c) Disappear 
d) Decrease in size

4. Angiosperm have dominated the land flora primarily because of their
a) domestication by man 

b) nature of self pollination  
c) property of producing number of seeds 
d) power of adaptability to diverse habitats

5. In arthropoda, head and thorax are often used to form cephalothorax but in which one of the following classes is the body divided into head, thorax and abdomen
a) Insecta  
b) Myriapoda 
c) Crustacea 
d) Arachnida and Crustacea

6. One of the following is a very unique feature of mammalian body
a) Homeothermy 

b) Rib cage 
c) Presence of diaphragm  
d) Four chambered heart

7. The telomeres of eukaryotic chromosomes consists of a short sequence of
a) Thymine rich repeats 

b) Cytosine rich repeats  
c) Guanine rich repeats 
d) Adenine rich repeats

8. A nutritionally wild type organism which does not require any additional growth supplement is known as
a) phenotype 
b) autotroph 
c) holotype 
d) prototroph

9. The Ti plasmid is often used for making transgenic plants. The plasmid is found in
a) Azotobacter 
b) Rhizopium roots of leguminous plants 
c) Yeast 
d) Agrobacterium

10. The most likely reason for development of resistance against pesticides in insect in insect damaging a crop is
a) random mutations 

b) acquired heritable changes 
c) direct mutations 
d) genetic recombinations
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Answers
1.a) oxygen
2. b) Serratia - Drug selection
3. c) Disappear
4. d) power of adaptability to diverse habitats
5. a) Insecta
6. c) Presence of diaphragm
7. c) Guanine rich repeats

8. d) prototroph
9. d) Agrobacterium
10. a) random mutations
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Class 12 Biology Questions

1. ICBN stands for
a) International code of Botanical Nomenclature
b) International Congress of Biological Names
c) Indian Codes of Botanical Nomenclature
d)  Indian congress of Biological Names

2. Which of the following produces antibodies in blood?
a) Neutrophils
b) Eosinophil
c) Monocyte
d) Lymphocyte

3. Cells of Cardiac muscles are


Cardiac muscle
Cardiac muscles
a) Voluntary
b) Non striated
c) Spindle shaped
d) Branched

4. Myxedema is due to the deficiency of
a) Insulin
b) Proteins
c) Calcitonin
d) Thyroxin

5. Which of the following is not an analogous organ?
a) Wings of a bat
b) Wings of an insect
c) Fore limbs of a horse
d) Wings of abird

6.  A viral disease of man is
a) Tetanus
b) Poliomycelitis
c) diptheria
d) Leprosy

7. Gamete contains
a) Both alleles of a gene
b) One allele of a gene
c) All allele of a gene
d)  Four alleles of a gene

8. Cutaneous respiration takes place in
a) Whale
b) Earth worm
c)  Bat
d)  Fish

9.RNA which carries information from DNA for protein synthesis
a) m RNA                 
b) s- RNA
c) t- RNA
d) r-RNA

10. Genetic disorders in developing foetus can be detected by
a) Laproscopy
b) Dialysis
c)  X-Rays
d)  Aminocentesis

11. The digestive gland of prawn is
Hepatopancreas

a)  Liver
b) Pancreas
c)  Stomach
d)  Hepatopancreas

12. The exchange of respiratory gases in the lung occur in:
a) Trachea
b) Bronchi
c) Bronchiole
d)  Alveoli

13. The pace maker of the human heart is the
a)  AV node
b) SA node
c)  Nerve
d)  Purkinje fibres

14. The folding of a joint by drawing one articulating bone to the other is done by:
a)  Pronator muscle
b) Flexor muscle
c)  Extensor muscle
d) Suspinator muscle

15. The central fluid filled cavity of the blastula is known as
a) Archenteron
b) Blastocoel
c)  Blastocyst
d)  Morula

16.  The first photosynthesis organism were:
a) Cyanobacteria
b) Coacervates
c)  Organic polymers
d) Primodial Soup

17.  Organs similar in function but differing in structure and origin are:
a)  Vestigial organs
b) Analogous organs
c) Homologous organs
d) None of these

18. The theory of evolution of Natural selection was put forward by;
a) Lamark
b) Darwin
c)  Wiesmann
d)  Lederberg

19. The OX individual exhibits:
a) Down’s syndrome
b) Turners syndrome
c)  Kinefelter’s syndrome
d) Marfan syndrome

20. The deficiency of thyroxine in children results in
a) Dwarfism
b) Gigantism
c)  Cretinism
d)  Myxedema

Answers
1. a) International code of Botanical Nomenclature
2. d) Lymphocyte
3. d) Branched
4. d) Thyroxin
5. c) Fore limbs of a horse
6.  b) Poliomycelitis
7. b) One allele of a gene
8.  b) Earth worm
9. a) m RNA
10.d)  Aminocentesis      
11.  d)  Hepatopancreas
12.  d)  Alveoli
13.  b) SA node
14.  b) Flexor muscle
15.  b) Blastocoel
16.  a) Cyanobacteria
17.  b) Analogous organs
18.  b) Darwin
20.  d)  Myxedema
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MCQ on Environmental Issues

1. Pollutants resulting from human activities are mainly discharged in:
a) overpopulated cities
b) industrial centres
c) rural area
d) both a and b

2.  Atmospheric pollution may be caused by
Sources of emissions of Air pollution
a) forest fire
b) organic decay
c) automobile exhausts
d) all of these

 3. Example of primary pollutant
a) SO2
b) NO2
c) CO
d) all of these

4. Pollutants are classified into:
a) biodegradable
b) qualitative
c) nonbiodegradable
d) all of these

5. Example of secondary pollutants :
a) Smog
b) O3
c) PAN
d) all of these

6. Oxidation of sulphur in the fossil fuels mainly produces:
a) NO
b) SO3
c) SO2
d) both b and c

7. The effect of the gaseous pollutants depend mainly on their:
a) Solubility in water
b) hydrophobic in nature
c) ability to settle down
d) longevity in air

8. Carbon dioxide content in atmosphere is
a) 93%
b) 0.5%
c) 0.03%
d) 0.001%

9. The polluting strength of sewage is usually characterized by its:
a) BOD
b) nitrogen content
c) ozone content
d) eutrophication

10. Biomagnification is caused mainly by
a) organochlorines
b) neem oil
c) organophosphates
d) all of these

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Answers
1. d) both a and b
2. d) all of these
3. d) all of these
4. d) all of these
5. d) all of these
6. a) Solubility in water
7. d) both b and c
8. c) 0.03%
9. a) BOD
10. a) organochlorines
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UPCPMT (Biology) Previous Questions and Answers

1.The classical example of adaptive radiation in development of new species is (U.P.C.M.T, 2004)
a) Giant turtle
b) Darwin finches
c) Marsupials of Australia
d) All of these
2. Gkycoproteinaceous hormone is (U.P.C.M.T, 2004)
a) Insulin
b) Relaxin
c) Oxytocin
d) Erthropoietin
3. Ribosomes are made up of (U.P.C.M.T, 2004)
Ribosomes
a) Fat and protein
b) Protein and RNA
c) protein and DNA
d) Lipid and Protein
4.Sudoriferous glands occur in (U.P.C.M.T, 2004)
a) Kidney
b) Lungs
c) Skin
d) Alimentary Canal
5. The molecular structure of insulin was first described by (U.P.C.M.T, 2004)
human insulin
a) Sanger
b) Korenberg
c) Richardson
d) Swaminathan
6. First mammal occurred in which era and period? (U.P.C.M.T, 2007)
a) Permian-palaeozoic
b) Triassic mesozoic
c) Tertiary-coenozoic
d) None of these
7. How many young Amoeba hatch out from a cyst of E.histolytica (U.P.C.M.T, 2007)
a) 1
b) 2
c) 4
d) 8
8. Alginic acid is present in cell wall of ? (U.P.C.M.T, 2007)
a) Bacillariophyceae
b) Laminaria
c) Myxophyceae
d) Myxophyceae
9.Plant provide protection from fungal disease by producing (U.P.C.M.T, 2007)
a) Phytoalexins
b) Prolectins
c) Prototoxins
d) All of these
10. Pyramid of energy in aquatic ecosystem is (U.P.C.M.T, 2007)
a) always upright
b) always inverted
c) bell shaped
d) None of these
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Answers:
1. b) Darwin finches
2. d) Erthropoietin
3. b) Protein and RNA
4. c) Skin
5. a) Sanger
6. b) Triassic mesozoic
7. d) 8
8. b) Laminaria
9. a) Phytoalexins
10. a) always upright

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Questions on Animal Tissues

1. Name the tissue which covers the external surface of the animal body and internal surface of the visceral organs?
Ans: Epithelial tissue

2.Which epithelial tissues lines the small salivary and pan and pancreatic ducts and thyroid vesicles?
Ans: Stratified cuboidal epithelium

3.Name two organs lined by transitional epithelial tissues?
Ans: Uterus and Urinary bladder

4. What tissues lines the internal mucosa of stomach, intestine and gall bladder?
Ans: Columnar epithelium
Columnar epithelium

5.Name the tissue which lacks blood vessels.
Ans:Epithelial tissue

6.Which tissues synthesises, stores and metabolises fat?
Ans: Adipose tissue

7.Which tissue forms strong, inextensible attachment of skeletal muscle to a bone?
Ans: Tendon

8.Name the tissue which connects a bone to another bone?
Ans: Ligament

9. Name the tissue where following structures are found:
(a) Haversian canals (b) Schwann cells.
Ans: a) bone  b) nerve cell

10.Name the tissues which fill the gap between organs?
Ans: Connective  tissue

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