Cell Division

Question 1

Charac. of Cell Wall

Answer 1

Thick, Rigid, Non living, Protective

Question 2

Parts of Cell Wall

Answer 2

Middle Lamella, Primary Cell Wall, Secondary Cell Wall

Question 3

Characteristics of Middle Lamella[5]

Answer 3

• Layer between two adjacent cells.
• Made up of Calcium and Magnesium pectate.
• Formed soon after cell division.
• Can be dissolved by string acids.
• Holds 2 cells together

Question 4

Primary cell wall grows by —-

Answer 4

Intussusception

Question 5

Characs. of Primary Cell Wall

Answer 5

• Grows by Intussusception

- Formed of loose network of cellulose microfibrils embedded in amorphous gel like matrix.