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Angular collenchyma occurs in
- a)Datura
- b)Helianthus
- c)Althea
- d)Cucurbita
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Angular collenchyma occurs ina)Daturab)Helianthusc)Althead)CucurbitaCo...
Collenchyma is a type of plant tissue in which cells are elongated in shape with the irregularly thickened primary cell wall. It provides mechanical support to the plant.
Collenchymatous cells are present at the periphery of herbaceous stems, petioles and the ribs of some leaves. They are also present in floral parts, fruits and aerial roots.,
Collenchyma develops from the ground meristem or procambium.
Types of collenchyma are
(a) Angular: The thickening materials deposit at the angles or corners of the cells where several cells meet e.g., petioles of Cucurbita, beta etc.
(b) Lamellar: The thickening material deposits heavily on the tangential walls of the cell than the radial walls e.g. stem of Sambucus.
(c )Lacunar : The thickening material deposits at those places of the cell wall which are in direct contact with the intercellular spaces. e,g, petioles of Salvia, Malva.
(d) Annular: In this type, the cell lumen more or less appears to be circular. This is mature tissue where cell shape changes with heavy deposits of pectin and hemicellulose in walls.
Thus, the correct answer is option D.
Most Upvoted Answer
Angular collenchyma occurs ina)Daturab)Helianthusc)Althead)CucurbitaCo...
Collenchyma is a type of plant tissue in which cells are elongated in shape with the irregularly thickened primary cell wall. It provides mechanical support to the plant.
Collenchymatous cells are present at the periphery of herbaceous stems, petioles and the ribs of some leaves. They are also present in floral parts, fruits and aerial roots.,
Collenchyma develops from the ground meristem or procambium.
Types of collenchyma are
(a) Angular: The thickening materials deposit at the angles or corners of the cells where several cells meet e.g., petioles of Cucurbita, beta etc.
(b) Lamellar: The thickening material deposits heavily on the tangential walls of the cell than the radial walls e.g. stem of Sambucus.
(c )Lacunar : The thickening material deposits at those places of the cell wall which are in direct contact with the intercellular spaces. e,g, petioles of Salvia, Malva.
(d) Annular: In this type, the cell lumen more or less appears to be circular. This is mature tissue where cell shape changes with heavy deposits of pectin and hemicellulose in walls.
Thus, the correct answer is option D.
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Community Answer
Angular collenchyma occurs ina)Daturab)Helianthusc)Althead)CucurbitaCo...
Collencyma cells r elongate cells with irregular thick cell walls that provides support and structure, it is observed at hypodermic position in helianthus only.
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Angular collenchyma occurs ina)Daturab)Helianthusc)Althead)CucurbitaCorrect answer is option 'B'. Can you explain this answer?
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Angular collenchyma occurs ina)Daturab)Helianthusc)Althead)CucurbitaCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Angular collenchyma occurs ina)Daturab)Helianthusc)Althead)CucurbitaCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Angular collenchyma occurs ina)Daturab)Helianthusc)Althead)CucurbitaCorrect answer is option 'B'. Can you explain this answer?.
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