Biology NCERT Example For NEET 2023 (important)

NEET 2023

Biology NCERT books are the primary source for the NEET Biology syllabus, and each chapter must be thoroughly studied and understood by students.
Students must pay close attention to the NCERT examples in the Biology textbook for NEET 2023. The examples help students understand the concepts better and prepare them for the NEET exam.

Table of Contents

The NCERT examples are an important part of the Biology textbook because they include a variety of questions of varying difficulty levels. These examples assist students in developing problem-solving skills and analytical abilities. Solving these examples also assists students in identifying their own strengths and weaknesses and working on them accordingly.

The NCERT examples also give students a preview of the NEET exam pattern. The questions are intended to assess the application of textbook concepts and theories. Practicing these questions allows students to develop the necessary speed and accuracy for the NEET exam.

Further more, the NCERT examples cover every chapter in the Biology textbook, and students must complete all of them. These examples include genetics, ecology, evolution, and human physiology, among other things. As a result, students must ensure that they comprehend and solve each example in the textbook.

So, Here we have added all NCERT Biology Examples that are Very important —

Part 1 1) Asexual Reproduction

Binary Fission : Amoeba
Budding : Yeast
Cell Division : Protists and Monerans

2) Asexual Reproduction Structures

Zoospores : Chlamydomonas
Conidia : Penicillium
Buds : Hydra
Gemmules : Sponge

3) Vegetative Propagules in Angiosperms

Eyes : Potato
Rhizome : Ginger, Banana
Bulbil : Agave
Leaf buds : Bryophyllum
Offset : Water Hyacinth

4) Oestrus Cycle

Tiger, cows, sheep, rats, deers, dogs

5) Menstrual Cycle

Monkeys, apes and humans

6) Monoecious Plants (Bisexual plants)

Cucurbits and coconut, Chara

7) Dioecious Plants (Unisexual Plants)

Papaya and date palm, Marchantia

8) Bisexual animals (Hermaphrodite)

Earthworm, sponge, tapeworm and leech

9) Unisexual animals

Cockroach

10) Parthenogenesis

Rotifers, honeybees, some lizards, birds (Turkey)

11) External fertilization

Most aquatic organisms – Majority of algae and fishes as well as amphibians

12) Internal fertilization

Many terrestrial organisms – Belonging to fungi
Higher animals (reptiles, birds, mammals)
Majority of plants – Bryophytes, pteridophytes, gymnosperms and angiosperms)

13) Multicarpellary, Syncarpous pistil

Papaver

14) Multicarpellary, Apocarpus gynoecium

Michelia

15) Presence of one ovule in an ovary

Wheat, Paddy, Mango

16) Presence of many ovules in an ovary

Papaya, Watermelon, Orchids

17) Autogamy

Viola (common pansy), Oxalis and Commelina

18) Abiotic agents of pollination

Wind and water

19) Biotic agents of pollination

Animals [Bees, Butterflies, beetles, wasp, ants, moths,
birds (sunbird and humming birds), bats, some
primates(lemurs) and arboreal(tree-dwelling) rodents, reptiles (gecko lizard and garden lizard)]

20) Wind pollination

Grasses

21) Water pollination

Algae, bryophytes, pteridophytes

Vallisneria and Hydrilla (grow in fresh water
Zostera (grow in marine water)

Insect or Wind pollination – Water hyacinth and water lily

22) Endosperms completely consumed bydeveloping embryo before seed maturation

Pea, groundnuts, beans

23) Persistent Endosperm

Castor and coconut

24) Albuminous seed

Wheat, maize, barley, castor,sunflower

25) Non-Albuminous seed

Pea and groundnut

26) True fruits

Most of the fruits

27) False fruits

Apple, strawberry, cashew

28) Parthenocarpic fruits

Banana

29) Apomixis

Asteraceae and grasses

30) Polyembryony

Citrus fruits

31) Hormones released during pregnancy

hCG, hPL, Estrogens, Progestogens(by placenta)
Relaxin (by ovary)
During pregnancy levels of estrogens, progestrogens, cortisol, prolactin,thyroxine are also increased in maternal blood

32) Natural methods of contraception

Periodic abstinence
Withdrawal or coitusinterrupts
Lactational amenorrhea

33) Barrier methods of contraception

Condoms, Diaphragms, cervical caps and vaults

34) IUDs

Non-medicated IUDs – Lippesloop
Copper releasing IUDs – CuT, Cu7, Multiload 375
Hormone releasing IUDs – Progestasert and LNG- 20

35) Incomplete Dominance

Dog flower (snapdragon or Antirrhinumspecies)

36) Co-dominance

ABO blood grouping

37) Multiple Allelism

ABO blood grouping

38) Pleiotropy

Phenylketonuria

39) Male Heterogamety

Humans and drosophila (XY)

40) Female Heterogamety

Birds (ZW)

41) Point mutation

Sickle cell anemia

42) Mendelian Disorders

Haemophilia, Cystic fibrosis, Sickle cell anemia,
colorblindness, phenylketonuria, thalassemia

43) Chromosomal disorders

Down’s syndrome, Klinefelter’s syndrome, Turner’s syndrome

44) Purines

Adenine and Guanine

45) Pyrimidines

Cytosine, Uracil and Thymine

46) Homologous structures (Divergent evolution)

Forelimbs of whales, bats, cheetah and humans
Vertebrate hearts or brains
Thorns and tenders of Bougainvillea and Cucurbita

47) Analogous structures (Convergent evolution)

Wings of butterfly and birds
Eye of octopus and mammals
Flippers of penguins and dolphins

48) Root modification

Sweet potato

49) Stem modification

Potato

50) Adaptive radiation

Darwin finches
Australian Marsupial

51) Placental mammals

Mole, anteater, mouse, lemur, flying squirrel,

bobcat, wolf

52) Australian mammals

Marsupial mole, numbat(anteater),marsupial mouse, spotted cuscus, flying phalanger, Tasmanian tiger cat, Tasmanian wolf

53) Passive Immunity

Colostrum, Injection in case of snake bites

54) Primary lymphoid organs

Bone marrow, and thymus

55) Secondary lymphoid organs

Spleen lymph nodes, tonsils, Peyer’s patches

of small intestine and appendix

56) Fresh water fish

Catla, Rohu, and Common carp

57) Marine fishes

Hilsa, sardines, Mackerel and Pomfrets

58) Semi-dwarf varieties of wheat

Sonalika and Kalyan Sona

59) Semi-dwarf varieties of rice

Jaya and Ratna

60) Diseases caused by fungi

Brown rust of wheat, red rot of sugarcane,late blight of potato

61) Diseases caused by bacteria

Black rot od crucifers

62) Diseases caused by viruses

Tobacco mosaic and turnip mosaic

63) Free living nitrogen fixing bacteria

Azospirillum, Azotobacter

64) Cyanobacteria as Nitrogen fixers

Anabaena, Nostoc, Oscillatoria

65) Symbiotic Nitrogen fixing Bacteria

Rhizobium

66) Major biomes of India

Tropical rain forest
Deciduous forest
Desert
Sea coast

67) Predation

Prickly pear cactus and cactus feeding predator (amoth)

68) Parasitism

Life cycle of human liver fluke
Malarial parasite
Cuscuta

69) A brute parasitism

Cuckoo (Koel) and the crow

70) Commensalism

Barnacles growing on the back of a whale
An orchid growing on as an epiphyte on amango branch
Cattle Egret and grazing cattle
Sea anemone and clown fish

71) Mutualism

Lichens – mutualistic relationship between a fungus and a photosynthesizing algae or cyanobacteria
Mycorrhizae – association between fungi and roots of higher plants
Pollination (zoophily, entomophily)
Between fig tree and wasp