All life forms contain "molecules of life". These are from Gener

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 Multiple Choice QuestionsMultiple Choice Questions

61.

A person is unable to read a newspaper without his glasses. He is most probably suffering from:

  • myopia

  • presbyopia

  • astigmatism

  • hypermetropia


62.

Examine these two statements carefully and select the correct answer using the code given below:

  • Statement I : Too much salt content in diet could be one of the reasons for kidney failure.
  • Statement II : High salt may cause high blood pressure.

  • Both the statements are individually true and Statement II is the correct explanation of Statement I

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true, but Statement II is false

  • Statement I is false, but Statement II is true


63.

Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below :

Statement I: Growth of plants is smooth with a complete fertilizer.

Statement II: A complete fertilizer always contains N, P,K.

 

  • Both the statements are individually true and Statement II is the correct explanation of Statement I.

  • Both the statements are individually true but Statement II is not the correct explanation of Statement I

  • Statement I is true but Statement II is false

  • Statement I is false but Statement II is true


64.

Energy is required for maintenance of life. It is obtained by a process called

  • Metabolism

  • Phagocytosis

  • Photorespiration

  • Decomposition


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65.

All life forms contain "molecules of life". These are

  • Carbohydrates

  • Proteins

  • Nucleic acids

  • All of the above


D.

All of the above

Crucial to the carbon-based life on the Earth are several types of biologically essential molecules. The basic types of molecules are carbohydrates, lipids, proteins and nucleic acids. The chemistry of these carbon-based molecules is included in the field of organic chemistry with specific life-related processes forming the field of chemistry.


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66.

Which one ofthe following is the smallest unit showing the properties of life such as capacity for metabolism, response to the environment, growth and reproduction?

  • Gene

  • Chromosome

  • Nucleus

  • Cell


67.

In plants, which one of the following gases is released during Photosynthesis?

  • Carbon dioxide

  • Oxygen

  • Hydrogen

  • Methane


68.

Gametophytes of sexually reproducing flowering plants are

  • Haploid

  • Diploid

  • Tetraploid

  • Polyploid


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69.

The seeds of flowering plants are made up of

  • Ovary and ovary wall

  • Embryo, food reserves and coat

  • Cotyledons

  • Zygotes


70.

Which endocrine gland requires iodine to synthesize a particular hormone whose deficiency may cause goitre disease?

  • Hypothalamus

  • Pancreas

  • Thymus

  • Thyroid gland


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