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11th Standard English Medium Biology (Botany) Subject Creative 1 Mark Questions with Solution Part - I

11th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 25

    1 Marks

    25 x 1 = 25
  1. A plant growth promoter got from fungi is ___________

    (a)

    Rennet

    (b)

    Gibberellin

    (c)

    Ergot

    (d)

    Griseofulvin

  2. ___________ are considered as pollution indicators.

    (a)

    Mycorrhiza

    (b)

    Actinomycete

    (c)

    Lichens

    (d)

    Cyanobacteria

  3. Living thing is otherwise called as ___________

    (a)

    Organ

    (b)

    Organelle

    (c)

    Organism

    (d)

    Cell

  4. Organisms grow by __________

    (a)

    cell division

    (b)

    spore formation

    (c)

    fragmentation

    (d)

    vegetative propagation

  5. Earth was formed _______________ billion years ago.

    (a)

    4.6

    (b)

    5.5

    (c)

    4

    (d)

    3

  6. _________________ are obligate aerobes.

    (a)

    Streptococcus

    (b)

    Clostridium

    (c)

    Micrococcus

    (d)

    E. Coli

  7. Which one of the following is a rod-shaped bacteria?

    (a)

    Coccus

    (b)

    Bacillus

    (c)

    Spirillum

    (d)

    Vibrio

  8. Food poisoning is caused by ______________

    (a)

    Yersinia

    (b)

    Clostridium

    (c)

    Treponema

    (d)

    Vibrio

  9. Nitrogen fixation in non leguminous plants is done by __________________

    (a)

    Rhizobium

    (b)

    Alnus

    (c)

    Frankia

    (d)

    Streptomyces

  10. Which of the following is the diameter of bacteriophage?

    (a)

    10 - 100 nm

    (b)

    20 - 100 nm

    (c)

    10 - 200 nm

    (d)

    20 - 30 nm

  11. Each virus posses only one type of nucleic acid:

    (a)

    Either DNA or RNA

    (b)

    DNA only

    (c)

    Neither DNA nor RNA

    (d)

    RNA only

  12. Definite nucleus and membrane bound organelles are present _________.

    (a)

    Eukaryotes

    (b)

    Prokaryotes

    (c)

    Bacteria 

    (d)

    Virus

  13. Asexual reproduction occurs through budding ___________.

    (a)

    Hydra and Yeast

    (b)

    Bacteria and Amoeba

    (c)

    Mosses

    (d)

    Planaria

  14. The wood formed in spring season in called ____________

    (a)

    Hard wood

    (b)

    Soft wood

    (c)

    Early wood

    (d)

    Non porous wood

  15. Living part of the wood is called __________

    (a)

    Duramen 

    (b)

    Heart wood

    (c)

    Porous wood

    (d)

    Sap wood

  16. Gymnosperm wood is known as _______________

    (a)

    non porous wood

    (b)

    hard wood

    (c)

    porous wood

    (d)

    sap wood

  17. Identify the character which is found in Autumn wood.

    (a)

    produces large number of xylem elements.

    (b)

    vessels have wide lumen

    (c)

    wood is darker in colour

    (d)

    cambium is very active

  18. Canada balsam is obtained from _________

    (a)

    Abies

    (b)

    Haematoxylin

    (c)

    Quercus

    (d)

    Cinchona

  19. Which of the following is a part of Radial system.

    (a)

    sieve tubes

    (b)

    companion cells

    (c)

    phloem rays

    (d)

    phloem parenchyma

  20. According to cytochrome pump theory the anions and cations are transported by _____________

    (a)

    active absorption

    (b)

    passive absorption

    (c)

    active and passive absorption respectively

    (d)

    passive and active absorption respectively

  21. In pure water Osmotic potential is ___________

    (a)

    equal to solute potential

    (b)

    zero

    (c)

    less than solute potential

    (d)

    decreases with increase of solutes

  22. The theory of K+ transport to explain stomatal opening was proposed by ____________

    (a)

    Steward

    (b)

    Levit

    (c)

    Hanes

    (d)

    Lloyd

  23. __________ is not linked to protein - lecithin theory.

    (a)

    phosphatidic acid

    (b)

    ATP4

    (c)

    Choline

    (d)

    Dehydrogenase

  24. ________ is a mineral required  greatest  amount by plants.

    (a)

    P

    (b)

    K

    (c)

    N

    (d)

    Mg

  25. A free living anaerobic Nitrogen fixing bacteria __________

    (a)

    Azolla

    (b)

    Klebsiella

    (c)

    Clostridium

    (d)

    Frankia

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