The primary cell wall is mainly made up of from Biology NEET Yea

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


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6.

The primary cell wall is mainly made up of

  • lignin

  • pectin

  • cellulose

  • protein


C.

cellulose

Primary cell wall is the part or layer of cell wall in which cell growth is permitted. It is mainly composed of cellulose.  Secondary cell wall is composed of lignin, while the middle lamella is rich is pectin. 

In the primary cell wall, major carbohydrates are cellulose, hemicellulose and pectin. The cellulose microfibrils are linked via hemicellulosic tethers to form the cellulose- hemicellulose network, which is embedded in the pectin matrix.


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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


8.

Which of the following is always absent in prokaryotic cells?

  • Ribosome

  • Mitochondria

  • DNA

  • Cell wall


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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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