NEET Biology PAPER

04/09/2021

DR.SAHU’S PMT BOTANY / ZOOLOGY CLASSES . Balsi. Saraipali. Dist.. Mahasamund. 7974256787..mob.CG
1. Ratio of organic to inorganic compounds in the cells is-----9 : 1.
2. Sweetest sugar is Fructose ( Fruit sugar not found in grapes ) Sweetining powers Fructose-- 170, Sucrose---100; Maltose---32; Lactose---16; Saccharine (not sugar) has sweetening power of 40,000 and monellin ( protein) has 200,000. The sweetest is Thaumatin (from bacterium Thaumatococcus denielli) which has sweetening index of 300,000 but sweetness is not sensed immediately. Aspartine—20,000 ; Acesulfame-K 15000; Cyclamate---3000; . The last three except espartame are banned as they are known to cause cancer.
3. Monellin 2000 times sweeter than sucrose.
4. Mucilage present in Aloe barbadensis reduces inflammation.
5. On hydrolysis storage carbohydrates provide both energy and carbon chains.
6. Heparin ( glucosamine + glucuronic acid and Sulphuric acid ) prevents blood clotting inside blood vessels of animals ( Mol. Wt. --17000)
7. Trihalose, a disaccharide, it is also found in fungi. It is the major sugar of insect haemolymph.
8. Teichoic acids are the polymers of glucose, alanine and glycerol or ribotol.
9. Teichoic acid are found in the matrix of cell wall of some gram +ve bacteria.
10. Verbascose is an example of penta-saccharide.
11. Any protein may be deficient in any essential amino acid. For example , pulses are deficient in methionine and tryptophan. ( most IMP questions)
12. Histidine and proline are heterocyclic amino acids.
13. Immunoglobulins or antibodies are proteins produced by lymphocytes.
14. P-prtein is a special protein present in phloem and plays important role in transport of nutrients.
15. Monellin is a sweetest chemical which is actually a protein obtained fro African berrr.
16. Glycophorin is the major glycoprotein of RBCs.
17. Valinomycin, an antibiotic, α-polypeptide, disturbs cellular ionic balance.
18. Casein(milk Protein) is n example of phosphoprotein. Milk is rich in Ca but lacking Fe.
19. Foetal haemoblobin contain two α-chains and Ý-chains while adult haemoglobin contains two-α and two-β chains.
20. All non-proteinic amino acids are dextro rotator.
21. Some non-proteinic amino acids act as component of antibiotic.

03/09/2021

DR.SAHU’S PMT BOTANY / ZOOLOGY CLASSES BALSI. SARAIPALI. MAHASAMUND.C.G.
1. Significance of asexual reproduction is-----------Ans:-- produce genetically and morphologically identical offsprings.
2. Why are date palm reffered to as dioecious-----------Ans:-- Because they have unisexual flowers borne on separate plants.
3. What does the term Monoecious mean-----------Ans:--In several fungi and plants the term Monoecious denotes the bisexual condition, i.e., the stamen and carpels are borne in the same flower.
4. Name an organism in which isogamy occurs-----------Ans:--Cladophora( a green alga)
5. Name two organisms where cell division is a mode of reproduction-----------Ans:--Amoeba and Paramecium.
6. Define gametogenesis-----------Ans:--The process of formation of two gametes--- male and female is called gametogenesis.
7. Which are the two major pre-fertilization events-----------Ans:--The pre-fertilization events are gametogenesis and gamete transfer.
8. Which plant organ servs as the carriers of male gamete-----------Ans:--pollen grains.
9. Define parthenogenesis-----------Ans:--Development of an egg (O**m) into a complete individual without fertilization by a s***m is known as parthenogenesis.
10. What forms the vital link that ensures continuity of species between organisms of one generation and the next-----------Ans:-- Zygote.
11. Which type of cell division takes place in the zygote of an organism exhibiting haplontic life cycle-----------Ans:--Zygote divides by meiosis to form haploid spores that grow into haploid individuals.
12. What is the significance of sexual reproduction-----------Ans:--Since the variations occur during sexual reproduction, it contributes to evolution of species.
13. How does Penicillin reproduce asexually-----------Ans:-- Conidia
14. Mention the unique flowering phenomenon exhibited by Strobilanthus kunthiana ( Neelakuranaji) -----------Ans:-- It flowers once in 12 years.
15. Why do intermodal segments of sugarcane fail to propagate vegetatively even when they are in contact with damp soil-----------Ans:--Only nodes can produce new plants.
16. In the whiptail lizards, only females are born generation after generation.There are no males.How is this possible-----------Ans:--Through asexual reproduction or parthenogenesis.
17. Mention the site where syngamy occurs in amphibians and reptiles respectively-----------Ans:--Amphibians: --outside the body/in external medium.; Reptiles:--- inside the body.
18. Name the phase all organisms have to pass through before they can reproduceSexually-----------Ans:-- Juvenile/growth.
19. Name an organism where cell division in itself is a mode of reproduction-----------Ans:--Protists / Monerans/Amoeba/Paramecium.
20. In higher plants vegetative reproduction is common; the vegetative propagules are-----------Ans:-- Runner------Oxalis; Rhizome------Ginger; Eyes on tuber-------Potato; bulbils-------Agave; Offset----------Water hyacinth and Pistia; Leaf buds------------bryophyllum; Bulbs-----onion ; Garlic.

15/08/2021

DR. SAHU’S NEET/AIIMS /XI/XII BIO CLASSES; BHILAI; 35 YRS. EXPERINCED .PROFESSOR
Balsi. Saraipali. BHILAI- Mob:- 7898752092
1. Internal bud for overcomingunfavourable conditions in Leucosolenia is -----------?
2. Coelom is cavity found between----------?
3. In Hydra., both pseudopodia and flagella occur in -------------?
4. Common between trochocyst of Paramecium and nematocysts of Hydra is ------------?
5. In Hydra,egestion of undigested food and excretion of nitrogenous wastes occur through--------?
6. The scientific name of Asian tiger mosquito is---------?
7. Taenia saginata differs from Taenia solium in----------?
8. Sites of first, second and third moulting of Ascaris larva are--------------?
9. Dorsal vessels of Earth worm is -----------?
10. Blood glands of Pheritima take part in------------?
11. A student has identified a triploblastic coelomate segmented animals as an arthopod.Which additional characters the student should have varified before identifying that animal as an arthopod--------?
12. Weberian ossicles are found in ----------?
13. The group of amniota includes----------?
14. The animal group, where the adults are degenerated but larvae are well developed , is--------?
15. Heterocercal tail is found in---------?
16. Stenohaline fishes are represented by------------?
17. Fishes having swim bladder, which do not have direct communication with the exterior and where resorbent and secretory part is not sharply separated from one another are called as------------?
18. Which type of coelom is found in frog-------------?
19. Limbless lizard is------------?
20. Viviparous bird is----------?
21. Annual migration does not occur in the case of-----------?
22. During its life cycle, Fasciola hepatica infects its intermediate host and primary host at the following larval stage respectively----------?
23. Sea cow and aquatic mammals included under--------------?
24. Sycon belongs to a group of animals, which are best described as------------?
25. Cockroach and earthwom have common type of--------------?
26. Fertilization in eartworm is----------?
27. Phylum anneilida resembles molluscus in embryonic feature because both have----------?
28. In bioluminescence storage, energy changes into-------------?
29. The main difference between Gymnophona and urodela is that Urodela--------?
30. Body cavity surrounding alimentary canal but it is not lined by cellular layer in which of the following phylum----------?
31. Sinking of Zooplankton during the day and rising to the surface at night is an example of-----------?
32. Animals possess nerve networks or nervous systems to respond to their environment.But the single celled Amoeba does not possesses any nerve cell, so, how it come to know whether a particle it encounters is a grain or sand and not its dinner-----------------?
33. Maximum nutritional diversity is found in the group ----------?

08/07/2021

DR. SAHU’S NEET BIOLOGY CLASSES
( One of the Best BIOLOGY TUITIONS OF CHHATTISGARH ) REGULAR COURSE OF BOTANY GENERAL INTRODUCTION—XI & XII
Saraipali. Balsi : Mob. 7974256787
***********************************************************************************

Q.1. Exactly how many plants described by Theophrastus in the book “Historia Plantarum”.?
Q.2. Actually study of science started from……….century ?
Q.3. Indian father of surgery is…?
Q.4. Oldest available literature about medicinal plant is…?
Q.5. Root tuber found in……………..plant ( write their botanical name ) ?
Q.6. Which vascular tissue is absent in Cuscuta stem…..?
Q.7. Write the name of family of largest Angios***mic tree plant..?
Q.8. Smallest dry seeds found in…….?
Q.9. Which plant group is placed under Embryophyta; Archegoniatae & Spermatophyta ?
Q.10. Who proposed telome theory for the evolution of higher plants………?
Q.11. Rafflesia arnoldi found in ……….country ?
Q.12 Carbon copy of a parent is called…..?
Q.13. Which cereal crop is considered to be the oldest cultivated crops of World?
Q.14. First land inhabiting plant of Earth is…….?
Q.15. Write the name of free floating fresh water Pteridophytes are……..?
Q.16. Golden mines of liverworts is……..?
Q.17. Chloroplast containing spores found in………..?
Q.18. Most primitive bryophytes is……….?
Q.19. Biflagellated and multiflagellated antherozoids found in ……….plant group ?
Q.20. Pollen grains of which plant cause hay fever in human being…?
Q.21. From which part of plant we can obtained Indigo/Neel..?
Q.22. Agar-agar is chemically…………?
Q.23. Kalpvriksha belong to which family of angios***m ?
Q.24. The chromosome number of Neurospora is…?
Q.25. Original rubber / Para rubber belong to which family…?
Q.26. Fresh water red algae is……?
Q.27. Central Jute Technology Research Institute located at ….?
Q.28. Write botanical name of king of timber..?
Q.29. Why Mycoplasma called as Joker of plant kingdom..?
Q.30.From which part of plant we obtained saffron/Kesar ?
Q.31. Write the name of first three most advanced family of angios***m ?
Q.32. Indian telegraph plant belong to which family…?
Q.33. On the basis of mode of nutrition Indian pipe plant is…?
Q.34.Maximum number of ovules per locule of o***y found in which family…?
Q.35. Write botanical name of largest and widest cultivated crop of India……?
Q.36. Largest parasitic angios***mic plant is..?
Q.37. Write the name plant virus;their genetic material is dsDNA..?
Q.38.Name the Cyanophage , which was discovered by Indian algologist Prof. R.N.Singh…..?
Q.39. How many genes are involved in fixation of atmospheric nitrogen..?
Q.40. Name one mushroom which is most poisonous..?
Q.41. In most of the Lichen , the fungal component are belong to class…….?
Q.42. Write the chemical composition of first discovered fungicides by Millardet ?
Q.43. Who first time studied causes of annual reccurence of wheat rust disease in plains of India ?
Q.44. Irish famine is due to which fungal pathogen……?
Q.45. In India Spirulina maxima is collected from…………?
Q.46. Which algae is used as larvicidal for destruction of mosquito larva ?
Q.47. Name the bacteria which is found in bio-gas plant for production of methane gas..?
Q.48. Which plant is major source sugar in the world ?
Q.49. Write the botanical name of plant, their fruit is rich source of Vit.-C ?
Q.50. Most trouble some terrestrial w**d of world is.?
Q.51. Edible part of litchi and pomegranate is…?
Q.52. Highest percentage of protein found in the seed of which pulse crop ? Q.53. The native place of tea is…?
Q.54. Abnormal secondary growth found in the rhizomorph of…… Pteridophyte ?
Q.55. The leaf of which pteridophyte used as vegetable by Chhattisgarh people ?
Q.56. Aflatoxin produce by ………….fungi ?
Q.57. Charas and Hashish obtained from which plant..?
Q.58. Most stable ecosystem is…?
Q.59. Ozone gas formed in which zone of atmosphere ?
Q.60. Grassland of India is known as…?
Q.61. In which land habitat where productivity is highest ?
Q.62. Tuberculated unicellular rhizoids found in which bryophytes…?
Q.63. Most common lianas of India is…?
Q.64. Chipko movement is concerned with………?
Q.65. Silent valley located at in which state of India, where very rare species are present ?
Q.66. Name two dwarf wheat variety , produced by Prof. M.S.Swaminathan?
Q.68. Yellow and Blue revolution related with production of…?
Q.69.The smallest cell organelle without a membrane is…?
Q.70. How many glucose units are found in one cellulose molecule..?
Q.71. World Environment day celebrates on……….?
Q.72. Elisa test is confirm the presence of……..?
Q.73. Which virus purifies the water of river Ganga ?
Q.74. Lux-meter is used for measurement of ?
Q.75. Homozygous and Heterozygous term given by?
Q.76. Queen of spice belong to…..family ?
Q.77. Smallest group of plants is………?
Q.78. Who started Van Mahotsav in India …?
Q.79. Green house effect is mainly due to increase in conc of ………gas ?
Q.80. The stain which is used to stained RNA is…..?
Q.81.Pollen tube is chemically made up of …?
Q.82. DCMU is strong inhibitor of …….?
Q.83. The author of book “ The Origin of Life” is..?
Q.84. Largest desert of India found in which state of India ?
Q.85. Father of genetic engineering is…?
Q.86. Name the Single dose vaccine…?
Q.87. Running water plants are known as….?
Q.88. Write the name of two semi-essential amino acids..?
Q.89. Which state of India is largest producer of king of spices..?
Q.90. Connecting link between Bacteria and Virus is..?
Q.91. Which stain is used for staining of golgi complex…?
Q.92. Worlds only floating National Park located at…..?
Q.93. Small pox vaccine discovered by..?
Q.94. How many nucleus take part in double fertilization and triple fusion..?
Q.95. Synandrous condition found in……flower of ……….family..?
Q.96. In which group of plants lateral roots are arises from endodermis..?
Q.97. Oldest tree of Gymnos***m is…….?
Q.98. Source of “Rum” alcohalic beverage is….?
Q.99. Reverse transcription process discovered from……?
Q.100. Wart disease of potato caused by…?

31/01/2021

22/12/2020

Human health and diseases

22/12/2020

Dainik Bhaskar news paper news dated 22 Dec. 2020

07/05/2020

IMP QUESTIONS FOR NEET 2020

23/04/2020

27/03/2020

Dr. Sahu’s NEET BOTANY/ZOOLOGY Classes’, Bhilai Result Oriented & Unmatched Bio classes of Bhilai mob—7974256787 For Classes -- IX / X / XI / XII AND NEET by a group of Doctors ( Most Experienced )
1. ABA acts antagonistics to----------------?
[a] Ethylene [b] Cytokinin [c] GA [d] IAA
2. Chemoosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on ---------?
[a] Membrane potential [b] Accumulation of Na+ ions [c] Accumulation of K+ ions [d] proton gradient
3. Microfilaments in eukaryotic cells are made up of -------?
[a] Actin [b] Albumin [c] Globulin [d] Fibrin
4. Assertion:- A cell membrane shows fluid behaviour.
Reason:- A membrane is a mosaic or composite of
diverse lipids and proteins.
5. The effectiveness of an enzyme is affected least by---? [a] Temperature [b] Concentration of the substrate [c] Original activation energy of the system [d] Concentration of the enzyme
6. The most abundant chemical in living organisms could
be-----------------?
[a] Protein [b] Water [c] Sugar [d] Nucleic acid
7. Purines possess nitrogen at------------------------?
[a] 1,2,4 & 6 positions [b] 1,3,5 & 7 positions
[c] 1,3,7 & 9 positions [d] 1,2,6 & 8 positions
8. Assertion:- Carboxypeptidase is an exopeptidase.
Reason:- It cleaves the N-terminal bonds.
9. Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres. [a] Metaphase—I [b] Metaphase—II [c] Anaphase—I [d] Anaphase—II
10. Force generated by transpiration can create pressure suffiocient to lift water even upto the height of -------?
[a] 130 feet [b] 130 mtr [c] 230 feet [d] 230 mtr
11.Which one of the following element in plants is not remobilised -------------?
[a] Phosphorous [b] Calcium [c] Potassium
[d] Sulphur
12. NH3 releases from--------------?
[a] Photorespiration [b] Dark respiration [c] CAM [d] All of these
13. Energy required for ATP synthesis in PS-II comes from-------------------?
[a] Proton gradient [b] Electron gradient [c] Reduction of glucose [d] Oxidation of glucose
14.In which of the following steps of Krebs cycle CO2 is evolved ----------------?
[a] Isocitric acid----------Oxalosuccinic acid
[b] Oxalosuccinic acid ------------ α-ketoglutaric acid
[c] Succinic acid --------- Fumaric acid
[d] Malic acid ------------- Oxaloacetic acid
15. Refrigerated fruits maintain flavour and taste for longer period due to--------------->?
[a] Non-availibility of O2 [b] presence of excess of CO2 [c] presence of excess of humidity [d] slower rate of respiration
16. How does pruning help in making the hedge dens---?
[a] It increases wound hormones [b] It in duces the differentiation of new shoot from the root stock.
[c] It frees axillary buds from apical dominance [d] The apical shoot grows faster after pruning
17. Photoperiodism was first characterised in----------->?
[a] Cotton [b] To***co [c] Potato [d] Tomato
18. In which of the following putrifying bacteria is
present-?
[a] Intestine [b] Colon [c] Stomach
[fd] Thyroid gland
19. The oxygen-haemoglobin dissociation curve will show a right shift in case of-------------?
[a] High pCO2 [b] High pO2 [c] Low pCO2 [d] Less H+ concentration
20. Thromboplastin is secreted by-------------
[a] Platelets [b] Lymphokines [c] Helper T-cells
[d] Mast cells.

16/03/2020