Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

What is cell lumen? Explain the different types of sclerenchyma.
Asked by ANUPAMA TIGHARE | 24 Aug, 2010, 05:27: PM
answered-by-expert Expert Answer
The inner open space or cavity of a cell is referred to as cell lumen.
Types of sclerenchyma-
1. Sclereids
2. Fibres
  • Sclereids: The cells are irregular in shape. The cell walls are thick, hard and lignified which makes the lumen very small. Simple pits (canals) are found in the thickened cell walls and link adjacent cells. Sclereids are commonly found in fruit and seeds.
  • Fibres: The cells are needle-shaped with pointed tips, thick walls and rather small lumen. Secondary cell walls, impregnated with, are formed. Simple pits are also present. Fibres are abundant in the vascular tissue of angiosperms, i.e. flowering plants.
    • Answered by | 24 Aug, 2010, 08:09: PM

    Application Videos

    Concept Videos

    Multiple Choice Questions Practice Test
    Answered Unanswered My Questions My Answers
    CBSE 9 - Biology
    Name the tissue responsible for movement in our body
    Asked by thangjamz.kabita | 31 Mar, 2024, 06:32: PM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    Aquatic plants have the ability to float in water. how
    Asked by rehansindagi00 | 23 Jan, 2024, 07:03: PM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    what is the work of tissue
    Asked by shantabaibaile | 21 Nov, 2023, 02:34: PM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    define permanent tissue
    Asked by divyasisode15 | 27 Aug, 2023, 08:08: PM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    Does lymph contain both WBC and RBC?  
    Asked by negimahak2 | 24 Feb, 2023, 09:00: AM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    tabulate the various types of simple epithelium tissues based on its structure location and functions
    Asked by febievangeline612 | 11 Jan, 2023, 02:44: AM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    6 differences between xylem and phloem?  
    Asked by priyanshdhiman2008 | 31 Oct, 2022, 07:20: PM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    is chlorenchyma present in desert plants? if yes, then where?
    Asked by shivamasheeshpurohit2012 | 07 Sep, 2022, 10:22: PM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    explain about complex tissue  
    Asked by Ravi | 28 Aug, 2022, 08:23: AM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    CBSE 9 - Biology
    what is tissue
    Asked by ysania393 | 20 Jul, 2022, 04:07: PM
    ANSWERED BY EXPERT ANSWERED BY EXPERT
    My Class Videos Tests ₹ Plans Ask a Doubt
    Get Latest Study Material for Academic year 24-25 Click here
    ×