Important Question paper 1mark

11th Standard

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Biology

Time : 00:25:00 Hrs
Total Marks : 50

    Part A

    Choose the  Best answers

    50 x 1 = 50
  1. The growing tip of the root _____.

    (a)

    Root cap

    (b)

    Meristematic zone

    (c)

    Zone of elongation

    (d)

    Zone of maturation

  2. _____ is an example for Lianas.

    (a)

    Bauhinia vahlii

    (b)

    Mango

    (c)

    Vanda

    (d)

    Nepenthes

  3. ______ is a submerged aquatic plant.

    (a)

    Suaeda

    (b)

    Rhizophora

    (c)

    Vallisneria

    (d)

    Eicchornia

  4. The root in Dahlia is described as ___

    (a)

    Annulated

    (b)

    Fasciculated

    (c)

    Nodulose

    (d)

    Beaded

  5. Stilt roots are also called _____

    (a)

    Pillar roots

    (b)

    Buttress root

    (c)

    Clasping root

    (d)

    Brace roots

  6. The leaf of Coriandrum is described as _____

    (a)

    bipinnate

    (b)

    unipinnate

    (c)

    decompound

    (d)

    tripinnate

  7. The terminal leaflets are modified into --- in Bignonia

    (a)

    tendril

    (b)

    hooks

    (c)

    spines

    (d)

    foliar roots

  8. Stem modified into a flattened photosynthetic structure _____

    (a)

    Phylloclade

    (b)

    Bulbil

    (c)

    Phyllode

    (d)

    Tendril

  9. Which one of the following is not a characteristic of root?

    (a)

    Presence of root cap

    (b)

    Presence of unicellular hair

    (c)

    Presence of chlorophyll

    (d)

    Absence of buds

  10. Match

    1 Radical buds i Agave
    2 Foliar bud ii Millingtonia
    3 Cauline bud iii Begonia
        iv Solanum
    (a)

    1 - iii, 2 - iv, 3 - i

    (b)

    1 - iii, 2 - i, 3 - ii

    (c)

    1 - ii, 2 - i, 3 - iv

    (d)

    1 - ii, 2 - iii, 3 - i

  11. Phyllanthus amarus belongs to the group:

    (a)

    Shrubs

    (b)

    Herbs

    (c)

    Climbers

    (d)

    Trees

  12. The root system of the plant is generally:

    (a)

    positively geotropic and negatively phototrophic in nature

    (b)

    negatively geotrophic and positively phototrophic in nature

    (c)

    negatively geotrophic and positively phototrophic in nature

    (d)

    negatively geotrophic and negatively phototrophic in nature

  13. Match the following:

    (i) Pothos (a) Stem climber
    (ii) Ipomoea (b) Thorn climber
    (iii) Bignonia (c) Root climber
    (iv) Carissa (d) Hook climber
    (a)

    (i)-(d), (ii)-(b), (iii)-(a), (iv)-(c)

    (b)

    (i)-(d), (ii)-(c), (iii)-(b), (iv)-(a)

    (c)

    (i)-(b), (ii)-(a), (iii)-(d), (iv)-(c)

    (d)

    (i)-(c), (ii)-(a), (iii)-(d), (iv)-(b)

  14. Venation is a term used to describe the pattern of arrangement of:

    (a)

    floral organs

    (b)

    veins and veinlets in a lamina

    (c)

    flower in inflorescence

    (d)

    all of them

  15. Epiphytic roots are found in

    (a)

    Indian rubber

    (b)

    Orchid

    (c)

    Tinospora

    (d)

    Cuscuta

  16. Potatoes are borne on:

    (a)

    Primary roots

    (b)

    lateral roots

    (c)

    Adventitious roots

    (d)

    axil of scaly leaves

  17. Winged petiole is found in:

    (a)

    citrus

    (b)

    radish

    (c)

    acacia

    (d)

    peepal

  18. Which of them has Haustorial roots?

    (a)

    Cuscuta

    (b)

    Trapa

    (c)

    Tinospora

    (d)

    Avecinia

  19. Photosynthetic roots are present in _________.

    (a)

    Viscum

    (b)

    Tinospora

    (c)

    Cassytha

    (d)

    Orabanche

  20. Give an example for foliar buds _________.

    (a)

    Agave

    (b)

    Bryophyllum

    (c)

    Citrus

    (d)

    Duranta

  21. Stem is changed into fleshy green structure is called as _________.

    (a)

    Phyllode

    (b)

    Corm

    (c)

    Bulbil

    (d)

    Phylloclade

  22. In Opuntia, the spines represent the modification of __________.

    (a)

    Stem

    (b)

    Leaves

    (c)

    Root

    (d)

    None of the above

  23. The large flattened structure in Ruscus is ________.

    (a)

    Cladode

    (b)

    Cladophyll

    (c)

    Leaf scale

    (d)

    Petiole

  24. Lawn grass is stem modification of __________.

    (a)

    Runner

    (b)

    Stolon

    (c)

    Offset

    (d)

    Sucker

  25. Match.the following.

    A) Unifoliolate 1. Aegle Marmelos
    B) Bifoliolate 2. Paris quadrifoliate
    C) Trifoliate 3. Bombax
    D) Quadrifoliate 4. Citrus
    E) Multifoliate 5. Zornia
    (a)

    A - 4, B - 5, C - 1, D - 2, E - 3

    (b)

    A - 3, B - 4,C - 5,D - 1,E - 2

    (c)

    A-1, B-2, C-3, D-4, E-5

    (d)

    A - 4, B - 5, C - 3, D - 2, E - 1

  26. ___________ plant leaf is modified as Pitcher.

    (a)

    Acacia

    (b)

    Aloe

    (c)

    Nepenthes

    (d)

    Pisum

  27. Two different kinds of leaf in the same plants is called ___________.

    (a)

    Isobilateral

    (b)

    Homophylly

    (c)

    Heterophylly

    (d)

    Centric

  28. Gynoecium with united carpels is termed as

    (a)

    Apocarpous

    (b)

    Multicarpellary

    (c)

    Syncarpous

    (d)

    None of the above

  29. Aggregate fruit develops from

    (a)

    Multicarpellary, apocarpous ovary

    (b)

    Multicarpellary, syncarpous ovary

    (c)

    Multicarpellary ovary

    (d)

    Whole inflorescence

  30. In an inflorescence where flowers are borne laterally in an acropetal succession the position of the youngest floral bud shall be

    (a)

    Proximal

    (b)

    Distal

    (c)

    Intercalary

    (d)

    Anywhere

  31. In which of the following organisms, self fertilization is seen.

    (a)

    Fish

    (b)

    Round worm

    (c)

    Earthworm

    (d)

    Liver fluke

  32. Nephridia of Earthworms are performing the same functions as

    (a)

    Gills of prawn

    (b)

    Flame cells of Planaria

    (c)

    Trachea of insects

    (d)

    Nematoblasts of Hydra

  33. Which of the following is a crustacean

    (a)

    Prawn

    (b)

    Snail

    (c)

    Sea anemone

    (d)

    Hydra

  34. The respiratory pigment in cockroach is

    (a)

    Haemoglobin

    (b)

    Haemocyanin

    (c)

    Oxyhaemoglobin

    (d)

    Haemoerythrin

  35. Which of the following is an egg-laying mammal

    (a)

    Delphinus

    (b)

    Macropus

    (c)

    Ornithorhynchus

    (d)

    Equus

  36. Pneumatic bones are seen in

    (a)

    Mammalia

    (b)

    Aves

    (c)

    Reptilia

    (d)

    Sponges

  37. Classification of sponges is primarily based on the

    (a)

    body organization

    (b)

    body plan

    (c)

    skeleton

    (d)

    canal system

  38. Cavity of coelenterates is called

    (a)

    coelenteron

    (b)

    coelom

    (c)

    cavity

    (d)

    none of these

  39. Medusa is the Reproductive organs of

    (a)

    Hydra

    (b)

    Aurelia

    (c)

    obelia

    (d)

    sea anemone

  40. Mollusca is

    (a)

    Triploblastic, acoelomate

    (b)

    Triploblastic, coelomate

    (c)

    Diploblastic, acoelomate

    (d)

    Diploblastic, coelomate

  41. Tube feet are the locomotory organs of

    (a)

    Platyhelminthes

    (b)

    Echinodermata

    (c)

    Mollusca

    (d)

    Arthropoda

  42. Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

    (a)

    aschelminthes (round worms)

    (b)

    ctenophores

    (c)

    sponges

    (d)

    coelenterates (cnidarians)

  43. Malpighian tubules are

    (a)

    excretory organs of insects

    (b)

    excretory organs of frog

    (c)

    respiratory organs of insects

    (d)

    endocrine glands of insects

  44. Caterpiller and maggot are

    (a)

    larvae

    (b)

    nymphs

    (c)

    adults

    (d)

    pupa

  45. Animals devoid of respiratory, excretory and circulatory organs are belongs to phylum

    (a)

    echinodermata

    (b)

    platyhelminthes

    (c)

    porifera

    (d)

    mollusca

  46. Cilia of gills of bivalve molluscs help in

    (a)

    protection

    (b)

    respiration

    (c)

    excretion

    (d)

    feeding

  47. The development of adult characteristics in a moulting insect is promoted by

    (a)

    pheromone

    (b)

    thyroxine

    (c)

    juvenile hormone

    (d)

    ecdysone

  48. If a plant is provided with all mineral nutrients but, Mn concentration is increased, what will be the deficiency?

    (a)

    Mn prevent the uptake of Fe, Mg but not Ca

    (b)

    Mn increase the uptake of Fe, Mg and Ca

    (c)

    Only increase the uptake of Ca

    (d)

    Prevent the uptake Fe, Mg, and Ca

  49. The element which is not remobilized?

    (a)

    Phosphorous

    (b)

    Potassium

    (c)

    Calcium

    (d)

    Nitrogen

  50. Match the correct combination

      Minerals   Role
    A Molybdenum 1 Chlorophyll
    B Zinc 2 Methionine
    C Magnesium 3 Auxin
    D Sulphur 4 Nitrogenase
    (a)
    A B C D
    1 3 4 2
    (b)
    A B C D
    2 1 3 4
    (c)
    A B C D
    4 3 1 2
    (d)
    A B C D
    4 2 1 3

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