Biology GK Questions with free Answer pdf

Here we are going to provide you free GK Questions with free answer pdf biology gk questions for you.it can be help you for your upcoming  NEET EXAM. questions answers key for National Eligibility cum Entrance Test (NEET) Exam.

  1. In cyathium inflorescence, the ratio between male and female flowers is
    (2) many one
    (1) one many
    (4) many :many
    (3) one one
  2. A spike differs from raceme in having
    (1) pedicellate flowers
    (2)sessile flowers
    (3) hermaphrodite flowers
    (4) neuter flowers
  3. The cup-shaped receptacle formed by condensation of rachis of three closely placed cymes is called
    (2) dichasium
    (1) hypanthodium
    (3) coenanthium
    (4) cyathiun
  4. An inflorescence that is similar to spike but bears unisexual flowers on its pendulous axis is characteristic of
    (2) Grasses
    (1) Euphorbia
    (4) banana
    (3) Morus
  5. In corymb inflorescence
    (1) flowers arise from different points but brought to the same height
    (2) all flowers arise from a common point
    (3) all flowers are covered by a sheath
    (4) the peduncle is pendant
  6. Which of the following are similar types of inflorescence?
    (1) Verticillaster and spike
    (2) Hypanthodium and spadix
    (3) Corymb and umbel
    (4) Strobile and spike
  7. In candytuft, the inflorescence is
    (2) corymb
    (1) typical raceme
    (3) corymbose raceme
    (4) umbel
  8. A cymose inflorescence appearing like a flower is
    (2) corymb
    (1) capitulum
    (4) dichasial cyme
    (3) umbel
  9. A capitulum inflorescence with two types of florets, is known as
    (2) isogamous
    (1) homozygous
    (4) anisogamous
    (3) heterogamous
  10. The most highly evolved type of inflorescence is
    (1) hypanthodium
    (2) spadix
    (3) polychasial cyme
    (4) capitulum
  11. Find out the wrong statement.
    (1) Cyathium is characteristic of family Labiatae
    (2) Head inflorescence is found in sunflower
    (5) Rafjlesia is a total root parasite
    (4) Smilax has stipular tendrils
  12. Select the correct combination of inflorescen
    (1) Cyathium, verticillaster, anthodium, catkin
    (2) Capitulum, globose head, verticillaster, catkin
    (3) Simple raceme, corymb, umbel, simple cyme
    (4) Simple raceme,spadix, spike, catkin
  13. Tetradynamous androecium is characterized by
    (1) outer 2 long and inner 2 short stam
    (2) outer 2 short and inner 4 long stamens
    (3) outer 4 long andinner 2 short stamen
    (4) outer 4 short and inner 2 long stamens
  14. Apocarpous Eynoecium is found in
    (1) Ranunculaceae
    (2) Malvaceae
    (3) Solanaceae
    (4) Liliaceae
  15. Basal placentation is found in
    (1) Leguminosae
    (2) Compositae
    (3) Malvaceae
    (4) Cruciferae
  16. Saffron of commerce is derived from
    (1) filaments of stamens
    (2) epidermal hairs of cotton
    (3) styles and stigmas of Crocus
    (4) silky styles of maize
  17. Diadelphous stamens are found in
    (2) Malvaccac
    (1) Papilionaceae
    (4) Caesalpiniaceae
    (3) Compositae
  18. The axis developed in between the androecium and gynoecium is termed as
    (2) androphore
    (1) anthophore
    (4) gynandrophore
    (3) gynophore

19.In syngenesious condition of stamens the
(1) filaments are free
(2) filaments are free, but anthers are unitea
(3) filaments are united, but anthers are free
(4) both filaments and anthers are united

  1. Pappus is a modification of
    (2) epicalyx
    (1) bract
    (4) perianth
    (3) calyx
  2. A fruit developing from bicarpellary, syncarpous superior ovary with parietal placentation and unilocular ovary when young but becoming bilocular with age and also pod-like in appearance is known as
    (2) siliqua
    (1) lomentum
    (4) cypsela
    (3) silicula
  3. The type of placentation in which ovary is syncarpous, unilocular and ovules are borne on sutures is known as
    (2) parietal
    (1) apical
    (3) marginal
    (4) superficial
  4. Which of the following contains the others ?
    (2) Stigma
    (1) Ovary
    (4) Pistil
    (3) Carpel
  5. When pericarp is fused with testa and the fruit contains a single seed, it is called
    (1) caryopsis
    (2) achene
    (3) utricle
    (4) nut
  6. What do you eat in coconut
    (1) Embryo
    (2) Mesocarp
    (3) Entire seed
    (4) Endosperm
  7. A pome fruit is said to be false because
    (1) its pericarp is inconspicuous
    (2) its endocarp is cartilaginous
    (3) its actual fruit is located within an edible, fleshy thalamus
    (4) it develops from an inferior ovary
  8. Aril is the edible part of the fruit of
    (2) litchi
    (1) mango
    (4) apple
    (3) pomegranate
  9. Which part of plant Eugenia aromatica do we use (in the form of cloves) as an aromatic spice ?
    (2) Dried and roasted seed
    (1) Dried fruit
    (3) Unopened dried flower bud
    (4) Dried leaf
  10. A fruit having an endocarp with sub-epidermal juice sacs or hair on the inner side of its locules, a spongy white mesocarp and leathery epicarp having oil glands, is called
    (2) pepo
    (1) pome
    (4) hesperidium
    (3) drupe
  11. The fruit which develops from hypanthodium inflorescence is called
    (2) sorosis
    (1) follicle
    (4) siliqua
    (3) syconus
  12. Aggregate fruits develop from
    (2) apocarpous ovary
    (1) simple ovary
    (3) syncarpous ovary
    (4) unilocular ovary
  13. The fruits are useless if they are without seeds in
    (2) syconus
    (1) hesperidium
    (4) sorosis
    (3) balausta
  14. Which of the following is not a true nut ?
    (2) Walnut
    (1) Cashewnut
    (4) Water chestnut
    (3) Litchi
  15. After ripening, the fruit becomes soft and pulpy due to
    (1) conversion of starch into sugar
    (2) the loss of pectate in the middle lamella
    (3) incorporation of pectate in middle lamella
    (4) acidic pH
  16. Which one of the following has geocarpic fruit?
    (1) Watermelon
    (2) Mango
    (3) Orange
    (4) Groundnut
  17. Edible part of banana is
    (1) epicarp
    (2) mesOcarp and less developed endocarp
    (3) endocarp and less developed mesocarp
    (4) epicarp and mesocarp
  18. The nature of a fruit developing from a flower depends on the type of:
    (1) fertilization
    (2) androecium
    (3) gynoecium
    (4) pollination

38. Juicy hair-like structures observed in the lemon fruit develop from
(1) exocarp
(2) mesocarp
(3) endocarp
(4) mesocarp and endocarp

  1. The micropyle in a seed helps the entry of
    (1) water
    (2) pollen tube
    (3) male gamete
    (4) none
  2. The tegmen of seed develops from
    (1) perisperm
    (2) funicle
    (3) inner integument
    (4) outer integument
  3. Seed may be defined as
    (1) ripened ovule
    (2) fertilised ovary
    (3) the gynoecium
    (4) embryo
  4. The embryonal axis is known as
    (1) plumule
    (2) hypocotyl
    (3) epicotyl
    (4) tigellum
  5. Flowers having only one set of essential organs are
    (1) Monoecious
    (2) Dioecious
    (3) Bisexual
    (4) Unisexual
  6. Arrangement of ovules on the placentae developed from central axis of ovary is
    (1) Parietal placentation
    (2) Basal placentation
    (3) Marginal placentation
    (4) Axile placentation
  7. Epicalyx occurs in
    (2) Jowar
    (1) Cycas
    (4) China Rose
    (3) Nephrolepis
  8. Replum occurs in the ovary of
    (1) Mustard
    (2) Pea
    (4) Lemon
    (3) Sunflower
  9. An example of axile placentation is
    (1) Marigold
    (2) Dianthus
    (4) Papaya
    (3) Lemon
  10. The expression gynoecium is apocarpous implies that
    (1) Gynoecium comprises only one pistil which is fused with the stamens
    (2) Gynoecium comprises more than one carpel, all of which are free
    (3) Gynoecium comprises more than one carpel which are fused
    (4) Gynoecium comprises only one carpel which are free
  11. in drups epicarp is
    (2)stony
    (1)hard
    (4)stony and hard
    (3)normal
  12. Which one of the following statements is correct
    (1) Flower of tulip is a modified shoot
    (2) In tomato fruit is a capsule
    (3) Seeds of orchids have oil-rich endosperm
    (4) Placentation in Primrose is basal
  13. The condition in which stamens are fused by anthers only, whereas the filaments remain free, is termed as
    (1) adelphous
    (2) syngenesious
    (3) synanadrous
    (4) polyandrous
  14. Fruit of grape vine is:
    (2) lomentum
    (1) siliqua
    (4) drupe
    (3) berry
  15. The inflorescence found in grasses and sedges is
    (1) compound spike
    (2) spikeket
    (4) spadix
    (3) catkin
  16. Among bitter gourd, mustard, brinjal. pump china rose, lupin, cucumber, sunnhemp, gra guava, bean, chilli, plum, petunia, tomato, rosc wihania, potato, onion, aloe and tulip, how many plants have hypogynous flower?
    (1) Ten
    (2) Fifteen
    (3) Eighteen
    (4) Six

ANSWER:-

  1. (2)2. (2) 3. (1)4. (3)5. (1)6. (3)7.(2)8. (1)9. (3)10.(4)11. (1)12. (4) 13. (2) 14. (1)15. (2)16. (3)17. (1)18.(3)19. (2)20. (3)21.(2)22. (2)23. (4)24. (1)25. (4)26. (3)27. (2)28.(3)29. (4)30. (3)31. (2) 32. (3)33. (2)34. (2)35. (4)36. (3)37. (33) 38. (3)39.(1)40. (3)41. (1) 42. (4)43. (4) 44. (4)45. (4) 46. (1)47. (3) 48. (2)49. (4)50. (1) 51. (2) 52. (3)53. (2)54. (1).

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