Multiple Choice Questions

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In which part of mitochondria does ATP synthesis occur?

  • F1

  • F0

  • Cristae

  • Inner membrane of mitochondria


A.

F1

During the oxidation process (occurs in inner mitochondrial membrane during electron transport system), enormous amount of free energy is released, some of which is utilised by inner membrane sub units or F1 particles containing three coupling factors and ATP enzyme, in the synthesis of ATP molecules.


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Phospholipids are

  • amphipathic

  • hydrophobic

  • amphibolic

  • none of these


In bacteria respiration occurs in

  • cytoplasmic membrane

  • mitochondria

  • nuclear membrane

  • endoplasmic reticulum


All tissues consist of cells sentence was said by
  • Wallace

  • Virchow

  • Schleiden

  • None of these


Maximum absorption of light occurs in the region of

  • 400 - 700 nm

  • 700 - 900 nm

  • 1000 - 1200 nm

  • 1500 - 2000 nm


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Assertion : Pili are tubular structures present in bacteria which help in conjugation.

Reason : Formation of pili is controlled by F+  or fertility factor.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false

  • If both assertion and reason are false


Assertion : In opposite phyllotaxy two leaves are borne on the opposite sides of a single node.

Reason : Opposite phyllotaxy is seen in China rose and Oleander.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false


Which of the following organelles contain DNA?

(i) Mitochondria (ii) Chloroplasts (iii) Golgi bodies (iv) Ribosomes

  • (i) and (ii)

  • (ii) and (iii)

  • (i) only

  • (iv) only


Assertion: Mitochondria and chloroplasts have their own genome.

Reason: Endoplasmic reticulum and Golgi body are the cell organelles which have their own DNA.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


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Who invented electron microscope?

  • Janssen

  • Edison

  • Knoll and Ruska

  • Landsteiner


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