Tnpsc group 4|Previous year question papers(Botany) Online Test in English
Tnpsc group 4|Previous year question papers(Botany) Online Test-1 CLICK HERE
1/100
Kuhne's tube can demonstrate the process of
Fermentation✔X
Germination of seeds✔X
Growth of plants✔X
Aerobic respiration✔X
2/100
In higher plants the sporophytic phase is formed after growth and development of the zygote. Point out the type of cell division involved in this growth,
Mitosis✔X
Meiosis✔X
Amitosis✔X
Zygotic meiosis✔X
3/100
The crop which gets affected by pink ball worm is
Banana✔X
Wheat✔X
Mango✔X
Cotton✔X
4/100
What is phototropism?
movement of plants towards chemicals✔X
movement of plants towards light✔X
movement of plants towards soil✔X
response of plants for day length✔X
5/100
The male honeybee has
(A) Diploid✔X
Haploid✔X
(C) Tetraploid✔X
Polyploid✔X
6/100
The study of the presence, distribution and prevention of disease in populations is called as
Ecology✔X
(B) Encyclopedia✔X
Epidemiology✔X
(D) Environment✔X
7/100
The Chief component of fungal cell wall is
A) Mucopeptide✔X
Mucopolysaccharide✔X
Cellulose✔X
glucopyranose✔X
8/100
The principal genetic material of living beings
(A) DNA✔X
(B) RNA✔X
Both 'A' and 'B'✔X
(D) Nucleolus✔X
9/100
Trace elements required for plant growth
(A) N, P, KT✔X
(B) Ca, Mg, Fe✔X
Mn, Zn, Cu✔X
(D) C, H, O✔X
10/100
Coniferous trees are found mostly in
Deccan Plateau✔X
Eastern Coast✔X
Western Coast✔X
Middle Himalaya✔X
11/100
Dodo is a
(A) Endangered✔X
Critically endangered✔X
C) Rare✔X
Extinct✔X
12/100
Which of the following is incorrectly matched?
Turner's syndrome - 44 autosome + XO✔X
Klinefelter's syndrome - 44 autosome + XXY✔X
Down's syndrome 44 autosome+XYY✔X
Super female) 44 autosome + XXX✔X
13/100
Symbiosis is an interaction between two species in which
Both live together in direct contact✔X
Both are benefitted✔X
One benefits and other is neither benefited nor harmed✔X
One benefits and other is harmed✔X
14/100
Who performed First Heart transplant in (1967)
Christian Barnard✔X
(B) Jan Donald✔X
(C) Willem Kolff✔X
(D) lan Donald)✔X
15/100
Fermentation is similar to
Aerobic respiration✔X
Anaerobic respiration✔X
Photosynthesis✔X
Transpiration✔X
16/100
Find out the scientific name of the economically important plants (a) Cotton | 1. Curcuma Domestica (b) Turmeric) 2. Withania somnifera (c) Ashwagandha 3. Gossypium Herhaceum (d) Indian Rosewood 4. Camellia sinensis e) Tea 5. Dalbergia latifolia
31254✔X
31245✔X
32154✔X
34521✔X
17/100
The highly resistant bodies produced within the cells of certain gram positive bacteria are
A) Granules✔X
(B) Globules✔X
Endospores✔X
(D) Plasmid✔X
18/100
All the arteries are carrying oxygenated blood except
Pulmonary artery✔X
Femoral artery✔X
Bronchial artery✔X
Alucolar Artery✔X
19/100
— is the storage form of carbohydrate in plants and comprises the primary source of energy in the diet.
Starch✔X
Glucose✔X
Glycogen✔X
Cellulose✔X
20/100
Where is the strongest muscle of the human body located?
Jaw✔X
Nose✔X
Ear✔X
Neck✔X
21/100
Nuclei acids are high molecular weight polymers containing
A) Phosphate group✔X
(B) Pentose sugar + Phosphate group✔X
(C) Heterocyclic Base + Pentose suga✔X
Phosphate group + Pentose sugar + Heterocyclic Base✔X
22/100
Hydrolysis of proteins give
a-amino acids only✔X
B-amino acids only✔X
y-amino acids only✔X
mixture of all✔X
23/100
Hydrolysis of proteins give
a-amino acids only✔X
B-amino acids only✔X
y-amino acids only✔X
mixture of all✔X
24/100
a tea leaves are kept in hot water for longer time, the liquid becomes bitter because
(A) The volatile oil in the leaves dissolves out✔X
The tannin dissolves out✔X
The thein dissolves out✔X
of the defect in the tea leaves✔X
25/100
Red data book contains data of
All plant species✔X
All animal species✔X
Economically important specie✔X
Threatened endangered species✔X
26/100
During DNA replication, the Okazaki fragments on the lagging strand and joined together by
DNA ligase✔X
B) DNA polymeras✔X
(C) Primase✔X
(D) Helicase✔X
27/100
Which organ growth requires thyroid hormone?
Heart✔X
Lungs✔X
Brain✔X
Kidney✔X
28/100
match the following types of cancer based on the tissue: (a) Carcinoma 1 Cancer of the Lymphatic System (b) Sarcoma Cancer of the white blood cells or bone marrow (c) lymphomn 3. Cancer of the bone and soft tissues (d) Leukemia 4. Cancer of the epithelial cells
2314✔X
3412✔X
4213✔X
4312✔X
29/100
Carnivorous adaptation of plants mainly compensate for soil that has a relatively low content of
A) Potassium✔X
Nitrogen✔X
Phosphate✔X
Calcium✔X
30/100
Which bacterium contains the crystal protein (endotoxin) that kills Lepidoptera insects?
Xanthomonas campestris✔X
Bacillus thuringiensis✔X
Pseudomonas syringe✔X
Bacillus anthracis✔X
31/100
Which of the following is not a 'blue copper protein"?
(A) Stellacyanin✔X
Ferritin✔X
Plastocyanin✔X
Azurin✔X
32/100
In Abelmosclus esculentus, the fruit is
(A) Drupe✔X
(B) Schizocarp✔X
C) Regma✔X
Loculicidal capsule✔X
33/100
How many asymmetric carbon atoms are present in a glucose molecule?
A) Two✔X
(B) Three✔X
Four✔X
(D) Five✔X
34/100
Pyrethrum Extracted from the inflorescence of
Chrysanthemum✔X
Citrus✔X
Agro bacterium✔X
Bacillus✔X
35/100
--------- is an antibiotic obtained from the blue green mold.
Streptomycin✔X
Penicillin✔X
Aureomycin✔X
Chloromycin✔X
36/100
The ulcer is mostly due to infections by a bacterium called
Helicobacter pylori✔X
Strepto cocci✔X
Staphylo cocci✔X
Mycobacterium tuberculae✔X
37/100
A boys larynx enlarges leading to deepening of voice and he shows hair growth over his face. This is due to the hormone
(A) Inhibition✔X
Testosterone✔X
Oestrogen✔X
Progesteron✔X
38/100
Blood is formed in the human adult by the
heart✔X
spleen ver red bone marrow✔X
yellow bone marrow✔X
red bone marrow✔X
39/100
Ovulation generally occurs
Just before menstruation✔X
During menstruation✔X
Just after menstruation✔X
Midway through menstrual cycle✔X
40/100
Who constructed a model successfully for DNA first?
Barbara Mcclintock 1965✔X
Melvin and Calvin 1963✔X
Watson and Crick 1953✔X
Hatch and Slack 1965✔X
41/100
All of the following are bacteria except
Bacteriophage E.Coli✔X
Lactobacillus subtilis✔X
Corynebacterium✔X
diphtheria✔X
42/100
The Drug most widely used against AIDS virus is best
Zidorudine✔X
(B) Miconozole✔X
Nawoxylol✔X
(D) Virazole✔X
43/100
Trypanosomiasis is a disease transmitted b
Sand fly✔X
Tse-tse fly✔X
Fire fly✔X
May fly✔X
44/100
According to Fluid-Mosaic model, Plasma membrane is made ofe
Cellulose and hemicellulose✔X
Phospholipids and hemicellulose✔X
Phospholipids and intrinsic proteins✔X
Phospholipids, intrinsic and extrinsic proteins✔X
45/100
Nutrition Atlas and Diet Atlas were published by
ICMR✔X
UNICEF✔X
WHO✔X
FAO✔X
46/100
In human, which types of cells are affected by Malarial parasite?
Liver cell and RBC✔X
RBC and WBC✔X
RBC and Ti/ Cells✔X
RBC and Epithelial cells✔X
47/100
Sensitivity, congenital, traumatic, metabolic and associated with drugs, smoke and heavy alcohol consumption are characters of
Obesity✔X
Cataract✔X
Glaucoma✔X
Diabetics✔X
48/100
1. Obelia polyp is sessile and fixed. II. Obelia mature medusa in free-swimming. Statements are True/False
A) (I) alone true✔X
B) (II) alone true✔X
(I) and (II) are true✔X
D) (I) and (II) are false✔X
49/100
Which protozoan causing Kala azar?
Trypanosoma gambiens✔X
Leishmania donovani✔X
Leishmania tropica✔X
Plasmodium vivax✔X
50/100
Which fungi impart "earthy odor" to the soil after rain? 1. Penicillium II. Rhizopus Mucor IV Streptomyces
1✔X
2✔X
3✔X
4✔X
51/100
The female sex organ in Alga-chara is called as 1. Globule II. Strobili III. Oospore IV. Nucule
1✔X
2✔X
3✔X
4✔X
52/100
The average ocean salinity is
(A) 45%✔X
(B) 35%✔X
(C) 33%✔X
(D) 38%✔X
53/100
Which gland enlarges, after the middle age of the male people, leads to interrupt urination?
(A) Bulbo-urethral gland✔X
Prostate gland✔X
Ampulla✔X
Gowper's gland✔X
54/100
Human ovum contains no yolk. How can we call it?
Alecithel Egg✔X
Isolecithel Egg✔X
Mesolecithel Egg✔X
elolecithel Egg✔X
55/100
------is essential for binding of Ribosomal sub units 1. Mo | II. Mg III. CLI IV. Ca.
I and II only✔X
1 and IV only✔X
II only✔X
IV only✔X
56/100
Haemophilia is a human disease caused by
(A) Bacterial infection✔X
B) Fungal infection✔X
Mutant gene✔X
Viral infection✔X
57/100
From the list below choose the binomial of Lotuse
(A Nelumbium speciosum✔X
(b)Victoria regia✔X
Pistia stratiotes✔X
Nymphaea stellata✔X
58/100
Which of the following characters of Gnetum brings it close to Angiosperms?
Woody habits✔X
Anomalous secondary growth✔X
Presence of vessels in xylem✔X
Naked seeds✔X
59/100
The deficiency of vitamin "A" causes
Hair to fall✔X
Dysentery✔X
Night blindness✔X
Weakness✔X
60/100
The most likely period in which a woman may conceive is
from 7th to 10 day of menstrual cycle✔X
5 to 19 day of menstrual cycle✔X
on 14th day of menstrual cycle✔X
at 14th day of menstrual cycle✔X
61/100
Which of the following characters is true about fungi? They are
heterotrophic plants✔X
chlorophyllus plants✔X
prokaryotic plants✔X
autotrophic animals✔X
62/100
Growth of plants only in water without soil is called
A) Hypertonic✔X
Hydroponic✔X
Hydrolytic✔X
Hypotonic✔X
63/100
Match the following: (a) Beriberi 1. Vitamin c (b) Pellagra 2. Vitamin B1 {c) Scurvy 3. Vitamin D (d) Rickets 4. Vitamin B3
1342✔X
2413✔X
1342✔X
3214✔X
64/100
Which is insectivorus plant?
Cuscuta✔X
Monotropa✔X
Vanda✔X
Drosera✔X
65/100
Alcoholic fermentation takes place in which organism
Yeast✔X
Fungi✔X
Bacteria✔X
Virus✔X
66/100
The hormone which maintains pregnancy and regulates menstrual cycle is
Progesterone✔X
Oestrogen✔X
Relavin✔X
Testosterone✔X
67/100
Consider the following statement. Assertion (A) : Neutrophils are belonging to granulocytic type. Reason (R) : Neutrophils contain no granules in cytoplasm.
(A) Both (A) and (R) are correct✔X
(B) Both (A) and (R) are wrong✔X
(A) is correct but (R) is wrong✔X
(A) is wrong but (R) is correct✔X
68/100
Who is the author of Book Anatomy of seed plants?
A. Schmidt✔X
Katherine Esau✔X
Ray. F✔X
KN. Rao✔X
69/100
) Which of the following ecological Pyramid is always upright?
Pyramid of energy✔X
Pyramid of number✔X
Pyramid of biomass✔X
B) and (C)✔X
70/100
In mammals the mammalian glands are modied gland of following 1. Salivary gland 2. Sebaceous gland Pituitary gland
A) 1 only✔X
2 only✔X
1 and 2 only✔X
(D) 1 and 3 only✔X
71/100
Combined drug in use to cure the Malaria is
Quinine✔X
Fansidar✔X
Chloroquine✔X
Primaquine✔X
72/100
Which one called from the development and the maturation of the erythrocyte from the haemocytoblast?
Erythropoiesis✔X
Erythrocynin✔X
Erythrocyte✔X
Haemotocyte✔X
73/100
Consider the following Endocrine glands : 1. - Islets of Langerhans - Produce Insulin 2. Thyroid gland) - Produce diabetes 3. Adrenal gland - Produce Goitre Which of the following is correctly matched?
1 only✔X
1 and 2 only✔X
2 and 3 only✔X
1, 2 and 3✔X
74/100
Which one of the following is need on a non-conventional source of raw material for the paper production?
Bamboo✔X
Casuarina✔X
Sugarcane bagasse✔X
Eucalyptu✔X
75/100
Find the wrong pair/pairs : 1. Metabolism Sum total of enzymatic reactions 2, Auxin Photosynthesis Photolysis of water Growth Oxidative phosphorylation Respiration
(A) 1 and 2✔X
(B) 2 only✔X
( 2 and 3✔X
(D) 3 and 4✔X
76/100
Which of the following plant boosts the production of red blood cells?
A) Turmeric✔X
(B) Tulsi✔X
Lemon grass✔X
(D) Mustard✔X
77/100
Among the following plants, which one has oil repelling property?
A) Tobacco✔X
(B) Maize✔X
C) - Hibiscus✔X
Aloe Vera✔X
78/100
What happens in human Thalassemias? 1. reduce a - globin synthesis 2. - reduce p - globin synthesis 3. (A) மு enhance a and p - globin synthesis
1 alone correct✔X
1 and 2 are correct✔X
2 alone correct✔X
3 alone correct✔X
79/100
Most widely used bioweapon is
(A) Bacillus subtilis✔X
(B) Vibrio cholerae✔X
Bacillus anthracis ,✔X
(D) Escherichia coli✔X
80/100
Golden rice is a genetically modified crop. Where the incorporated gene is meant for biosynthesis of
Vitamin A✔X
(B) Vitamin B✔X
(C) Vitamin C✔X
(D) Vitamin D✔X
81/100
) The end product of anaerobic respiration is
(A) Acety✔X
Ethanol alchol✔X
Pyruvic acid)✔X
Succinic acid)✔X
82/100
consider the statement : Assertion (A) : Omega-3 fatty acids reduce the LDL cholesterol which may thus reduce risk if coronary heart disease. Reason (R) : People with problems of blood circulation such as varicose veins benefit from consumption of omega-3 fatty acids since they stimulate blood circulation and help to breakdown fibrin (clot)
(A) Both (A) and (R) are individually true but (R) is not a correct explanation of (A)✔X
A Both (A) and (R) are individually true and (R) is the correct explanation of (A)✔X
(A) is true but (R) is false✔X
(A) is false but (R) is true✔X
83/100
Find out the wrong statement
A) The phloem in gymnosperms lacks companion cells✔X
(B) Pollination is one mophilous in gymnosperms✔X
The ovules are protected by the carpels in gymnosperms✔X
(D) Vessels are usually absent from the xylem of gymnosperms✔X
84/100
Which ratio is constant for DNA?
G/T+C✔X
(B) A+T/G + C✔X
(C) A + C/U+G✔X
(D) A + UTC + G✔X
85/100
onsider the statement : Assertion (A) : The eukaryotic cells have four kinds of rRNA molecules namely 28 S rRNA, 18 S rRNA, 5.8 S rRNA and 5 S rRNA. Reason (R) : The 28 S rRNA, 5.8 S rRNA and 5 S rRNA occur in 60 S ribosomal subunit while 18 S rRNA occurs in 40 S ribosomal subunit of 80 S ribosomes of eukaryotes. Choose the correct answer:
A Both (A) and (R) are individually correct and (R) is the correct explanation of (A)✔X
(B) Both (A) and (R) are individually correct but (R) is not a correct explanation of (A)✔X
C) (A) is correct but (R) is false✔X
(D) (A) is false but (R) is correct✔X
86/100
A person donating blood should have a minimum haemoglobin level of
(A) 10g✔X
(B) 11.5g✔X
12.5g✔X
(D) 14g|✔X
87/100
Which among the following atmospheric layer is most important for all biological activity?
A) Stratosphere✔X
Troposphere✔X
(C) Mesosphere✔X
lonosphere✔X
88/100
An Ecosystem means
A) Biotic community✔X
Biotic community.and its non-living things -✔X
(C) - Non-living things✔X
Population✔X
89/100
Rejection is not occurs, when tissues or organs are transplanted from 1. Same individual - . .. 2. - Identical twins Two different species
A) 1-alone✔X
(B) 2 alone✔X
1 and 2✔X
(D) 3 alone✔X
90/100
Which of the following is the symptom of the protein deficiency disorder, 'Kwashiorkor”
(A) Fatty Liver✔X
(B) Pigeon Chest✔X
(C) -Burning feet -✔X
Pot - belly✔X
91/100
Which among the following is used to treat sewage?
(A) Diatom, Fucus✔X
(B) Chondrus, Chara✔X
Chlorella, Chlamydomonas✔X
(D) Chondrus, Gracilaria✔X
92/100
Which one of the following is not reserve food of fungi?
A) Glycogen✔X
(B) Fat✔X
- Starch✔X
(D) ' Both (A) and (B)✔X
93/100
The apparatus used to demonstrate fermentation is
(A) - Respirometer✔X
. (B) Thistle funnel✔X
Kuhne's tube✔X
(D) Wilmott's bubbler.✔X
94/100
he complete manure is that which supplies to the soil
(A) - S, K and NT✔X
N, P and K✔X
S and N✔X
S, N and P✔X
95/100
Which of the following is ketohexose?
(A) Glucose -✔X
(B)Fructose✔X
C) Ribose✔X
(D) - Galactose✔X
96/100
'Match : (a) Agaricus bisporus 1. (b) Pleurotus flabellutus -2. (c) Volvariella valvacea - 3. (d) Calocybe indica Milky mushroom Button mushroom Oyster mushroom Paddy straw mushroom
2 -3 - 4 1✔X
B) 2 4 1 3✔X
(C) 2 1 4 3 (✔X
(D) 1 2 3 4✔X
97/100
What is the characteristic features of colour-blindness - Given below
A) Absence of rod cells in retina✔X
Absence of cone cells in retina✔X
Absence of lusture in lens✔X
Lack of colour pigments in the Eye✔X
98/100
The objective of conservation of Biodiversity 1. To preserve biodiversity. 2. To preserve genetic resource. - 3. To manage the natural resources. Select the correct answer using the code given below
1 only✔X
1 and 2 only✔X
2 and 3 only✔X
1, 2 and 3✔X
99/100
The seminiferous tubule is the supporting cells are cells of specialized functions called cells of
sertoli✔X
cells of labules✔X
cells of legdig.✔X
cells of scrotum✔X
100/100
Which of the following statements is/are correct regarding blood volume in human beings. 1. In adult human being the total volume of blood is about 5 litres. The average volume of blood is calculated on weight basis. In human beings approximately 70 ml of blood for each kilogram of body weight.
(A) 1 only✔X
(B) 1 and 2 only✔X
(C) 2 and 3 only✔X
1, 2 and 3✔X
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