Question

Lacunar collenchyma is specifically present in hypodermis of

• A. Cucurbita stem
• B. Sunflower stem
• C. Brinjal stem
• D. Maize stem

Answer 1

Answer: (A)

Cucurbita stem

Sunflower stem has lamellar or plate collenchyma which is characterized by cell wall thickening on the tangential walls giving the cell lamellar or plates like appearance. Brinjal stem has angular collenchyma which is characterized by deposition of pectocellulose are at the angles of the cell. Cucurbita stem has lacunar collenchyma or tubular collenchyma which is characterized by the presence of distinct intercellular spaces and deposition of pectocellulose is on the wall of intercellular spaces. Maize stem has sclerenchymatous hypodermis.
Therefore, the correct answer is option A.