Which of the following is always absent in prokaryotic cells? fr

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

One molecule of triglyceride is produced using

  • one fatty acid and one glycerol

  • one fatty acid and three glycerols

  • three fatty acids and three glycerols

  • three fatty acids and one glycerol


2.

Glutenin is an important protein in

  • potato

  • wheat

  • soyabean

  • spinach


3.

Which one of the following is enriched with a non-reducing sugar?

  • Grapes

  • Germinating barley grains

  • Table sugar

  • Mother's milk


4.

Select the correct statement related to mitosis.

  • Amount of DNA in the parent cell is first halved and then distributed into two daughter cells

  • Amount of DNA in the parent cell is first doubled and then distributed into two daughter cells

  • Amount of DNA in the parent cell is first halved and then distributed into four daughter cells

  • Amount of DNA in the parent cell is first doubled and then distributed into four daughter cells


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5.

Chlorophyll molecules are located in the

  • thylakoid membrane

  • thylakoid lumen

  • stroma

  • inner chloroplast membrane


6.

The primary cell wall is mainly made up of

  • lignin

  • pectin

  • cellulose

  • protein


7.

Which of the following statements is wrong for sucrose?

  • It is a disaccharide

  • It is a non-reducing sugar

  • It accumulates in the cytoplasm

  • It is comprised of maltose and fructose


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8.

Which of the following is always absent in prokaryotic cells?

  • Ribosome

  • Mitochondria

  • DNA

  • Cell wall


B.

Mitochondria

A typical prokaryotic cell i.e. bacterial cell has cell wall just below the glycocalyx composed of peptidoglycan. They also have ribosomes and DNA just like eukaryotes. Prokaryotic cell does not have mitochondria to generate energy. They, instead generate few energy or ATP via glycolysis (when oxygen is available) and lactic acid fermentation (when oxygen is unavailable).


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9.

Which of the following tissues provide maximum mechanical support to plant organs?

  • Sclerenchyma

  • Collenchyma

  • Parenchyma

  • Aerenchyma


10.

The Respiratory Quotient (RQ) of glucose is

  • 0.5

  • 0.7

  • 1.0

  • 1.5


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