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Cell Wall Structure (MP DMAT)

Description: Proteins
Number of Questions: 16
Created by:
Tags: cell wall Cell: Structure, Functions and Cell Cycle
Attempted 0/16 Correct 0 Score 0

Which organelle acts as a pressure vessel?

  1. Cell membrane

  2. Cell wall

  3. Vacuoles

  4. Protoplasm


Correct Option: B
Explanation:

Cell wall prevents over-expansion when water enters the cell.

The additional stiffness of secondary cell wall of xylem is due to

  1. suberin

  2. lignin

  3. pectin

  4. cellulose


Correct Option: B
Explanation:

The additional stiffness of secondary cell wall of xylem is due to lignin.

Which of the following components is found in a fungal cell wall?

  1. Pectin

  2. Peptidoglycan

  3. Chitin

  4. Cellulose


Correct Option: C
Explanation:

Chitin is found in cell wall of fungus.

The middle lamella of a cell wall is rich in

  1. lignin

  2. pectin

  3. suberin

  4. chitin


Correct Option: B
Explanation:

The middle lamella of the cell wall is rich in pectin.

Which layer of cell wall is laid first during formation of a plant cell?

  1. Primary cell wall

  2. Middle lamella

  3. Secondary cell wall

  4. Tertiary cell wall


Correct Option: B
Explanation:

The first laid layer of cell wall is middle lamella.

The hemicellulose only present in primary cell wall of most plants is

  1. arabinoxylan

  2. glucomannan

  3. xyloglucan

  4. glucuronoxylan


Correct Option: C
Explanation:

The hemocellulose in the primary cell wall of most plants in xyloglucan. 

Hydroxyproline-rich glycoproteins are found in the cell wall of

  1. plants

  2. fungi

  3. bacteria

  4. algae


Correct Option: A
Explanation:

Hydroxyproline-rich glycoproteins are found in the cell wall of plants.

Which of the following polysaccharides is/are present in the cell wall of marine blue-green algae?

  1. Alginic acid

  2. Xylans

  3. Mannans

  4. Agarose


Correct Option: C
Explanation:

Mannans are found in marine green algae.

Cell wall of diatoms is composed of

  1. hemicellulose

  2. biogenic silica

  3. glycocalyx

  4. hyaluronic acid


Correct Option: B
Explanation:

Cell wall of diatoms is composed of biogenic silica.

Cells interact with each other through

  1. cell plate

  2. plasmodesmata

  3. Ca-pectate

  4. cellulose microfibrils


Correct Option: B
Explanation:

Cells interact with each other through plasmodesmata, which are inter-connecting channels of cytoplasm that connect to the protoplasts of adjacent cells across the cell wall.

The rigidity of cell wall is due to

  1. tensile strength

  2. osmotic pressure

  3. hydraulic turgor pressure

  4. stiffness


Correct Option: C
Explanation:

Hydraulic turgor pressure creates rigidity in cell walls.

Mannoproteins are found in the cell wall of

  1. moulds

  2. true fungi

  3. bacteria

  4. gymnosperms


Correct Option: B
Explanation:

Mannoproteins are found in the cell walls of true fungi.

Sulphonated polysaccharides are present in the cell walls of

  1. fungi

  2. plants

  3. algae

  4. mycoplasma


Correct Option: C
Explanation:

Sulphonated polysaccharides are found in algal cell wall.  

Which of the following components is present in water mold cell wall, but absent in fungal cell wall?

  1. Chitin

  2. Cellulose

  3. Glycans

  4. Hydroxyproline


Correct Option: D
Explanation:

Hydroxyproline is present in water mold cell wall, but absent in fungal wall.

Cell wall is not found in

  1. true fungi

  2. gram negative bacteria

  3. mycoplasma

  4. aquatic plants


Correct Option: C
Explanation:

Mycoplasma lacks cell wall.

Glycoprotein S-layers, pseudopeptidoglycan or polysaccharides are found in the cell walls of

  1. bacteria

  2. plant

  3. fungus

  4. archaea


Correct Option: D
Explanation:

Glycoprotein S-layers, pseudopeptidoglycan or polysaccharides are found in the cell walls of archaea.

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