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All Physics Chemistry Botany Zoology

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Which of the following is true about secondary metabolites of plants?

It’s restricted to a particular kingdom of plants

It’s absence does not lead to immediate death of plants

No direct function in growth and development of plants

All of the above

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Explanation

Refer NCERT, Heading 9.2, page-146, para 2

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Which of the following is polymeric secondary metabolites?

Rubber

Gums

Abrin

Both 1 and 2

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Explanation

Refer NCERT, Heading 9.2, page-146, para

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Which of the following is not true about secondary metabolites?

They have direct role in photosynthesis, respiration and reproduction

They act as toxins or pigments or drugs or lectins

Distribution is limited and restricted to special taxonomic group

Organic compound of diverse nature

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Explanation

Refer NCERT, Heading 9.1, page-143, para 2

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Which of the following is not a secondary metabolite?

Rubber

Ricin

Morphine

Oxaloacetic acid

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Explanation

Refer NCERT, Heading 9.2, page-146, para 2, OAA is obtained from Krebs’ cycle so it’s a primary metabolite

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Which of the following is true about compounds present in acid soluble pool?

They have molecular weight ranging from 18 to 800 Daltons

They are called as micromolecules

They are called as Biomolecules

All of the above

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Explanation

Refer NCERT, Heading 9.3 page-146, para 1 and 2

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Which of the following is true about compounds present in acid insoluble pool?

They have molecular weight ranging from 10,000 Daltons and above except lipids

They are called as Macromolecules

They are called as Biomacromolecules

All of the above

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Explanation

Refer NCERT, Heading 9.3 page-146, para 1 and 2

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Which of the following is not a polymeric substance?

Carbohydrates

Lipids

Nucleic Acids

Proteins

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Explanation

Refer NCERT, Heading 9.3 page-146, para 2

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Which of the following is true about lipids?

Small molecular weight compounds

Molecular do not exceed above 800 Da

It comes under acid insoluble fraction

All of these

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Explanation

Refer NCERT, Heading 9.3 page-147, para 2

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Find the correct statement

)Macromolecules have molecular weight ranging from 10,000 Daltons and above except lipids

Macromolecules have molecular weight ranging from 1000 Daltons and above except lipids

Lipids comes under soluble fraction

Fatty acid is the monomer of lipids

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Explanation

Refer NCERT, Heading 9.3 page 146 &147

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Lipids were found to be present in the acid insoluble pool because

It forms vesicles on disruption

Vesicles are water insoluble

Vesicles are hydrophobic in nature

All of these

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Explanation

Refer NCERT, Heading 9.3 page-147, para 1

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