Cell Wall (Class XI/XII)

Structure, composition, and functions of cell walls in plants and bacteria including cell wall types, components, and related phenomena.

15 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

The structure through which the cells coordinate with each other is called

  1. plasmodesmata
  2. endoplasmic reticulum
  3. cell membrane
  4. pili
Question 2 Multiple Choice (Single Answer)

The deposition of ____________ in cell wall reduces the rate of surface transpiration.

  1. lignin
  2. cutin
  3. pectin
  4. suberin
Question 3 Multiple Choice (Single Answer)

The impermeability of cork cell wall is due to

  1. lignin
  2. suberin
  3. cutin
  4. pectin
Question 4 Multiple Choice (Single Answer)

Which of the following types of cell walls provides mechanical support to gymnosperms?

  1. Primary
  2. Secondary
  3. Tertiary
  4. Cell coat
Question 5 Multiple Choice (Single Answer)

Which of the following phenomena is exhibited by cells having cell wall?

  1. Active transport
  2. Crenation
  3. Plasmolysis
  4. Diffusion
Question 6 Multiple Choice (Single Answer)

Which organelle gives shape to a cell and protects it from mechanical injury and infection?

  1. Cell coat
  2. Cell membrane
  3. Cell wall
  4. Cytoplasm
Question 7 Multiple Choice (Single Answer)

Which of the following cell wall layers develops in young growing cells?

  1. Secondary cell wall
  2. Primary cell wall
  3. Tertiary cell wall
  4. Middle lamella
Question 8 Multiple Choice (Single Answer)

Which of the following is true about the permeability of cell wall?

  1. Cell wall is impermeable.
  2. Cell wall is selectively permeable.
  3. Cell wall is semi-permeable.
  4. Cell wall is permeable.
Question 9 Multiple Choice (Single Answer)

Which of the following polymers constitute(s) bacterial cell wall?

  1. Cellulose
  2. Peptidoglycans
  3. Phospholipids
  4. N-acetyl glucosamine
Question 10 Multiple Choice (Single Answer)

Which of the following cell wall layers constitutes of Ca, Mg pectate, lignin and proteins?

  1. Primary
  2. Middle lamella
  3. Secondary
  4. Tertiary
Question 11 Multiple Choice (Single Answer)

The absence of _______ causes loosening of cells.

  1. primary cell wall
  2. secondary cell wall
  3. middle lamella
  4. tertiary cell wall
Question 12 Multiple Choice (Single Answer)

Which of the following cells have cell wall made up of cellulose?

  1. Animal cells
  2. Plant cells
  3. Bacterial cells
  4. Fungal cells
Question 13 Multiple Choice (Single Answer)

Which layer of cell wall is common between two adjacent cells?

  1. Primary cell wall
  2. Middle lamella
  3. Secondary cell wall
  4. Tertiary cell wall
Question 14 Multiple Choice (Single Answer)

Which of the following cell membrane extensions help in the synthesis of cell wall?

  1. Peroxisomes
  2. Lysosomes
  3. Mesosomes
  4. Ribosomes
Question 15 Multiple Choice (Single Answer)

Which of the following is a thick and tough structure made up of mucopolysaccharide?

  1. Capsule
  2. Slime
  3. Plant cell wall
  4. Fimbriae