Home
Class 12
BIOLOGY
What are pit field? Where are they prese...

What are pit field? Where are they present?

Text Solution

Verified by Experts

Pit fields are the areas of greatly reduced thickness in the walls of plant cells. They appear like pits and enable the relatively easy transfer of materials between cells. Companion cells and sieve tube elements are connected by pit fields present between their common longuitudinal walls.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ANATOMY OF FLOWERING PLANTS

    AAKASH INSTITUTE|Exercise Try Yourself|38 Videos

  • ANATOMY OF FLOWERING PLANTS

    AAKASH INSTITUTE|Exercise Exercise|30 Videos

  • ANIMAL KINGDOM (CHORDATES)

    AAKASH INSTITUTE|Exercise Assignment (Section-D)|10 Videos

Similar Questions

Explore conceptually related problems

Where is Z-line present ?

What is endarch condition? Where is it present?

Knowledge Check

  • Where is antigen D present ?

    A
    On the Rhesus factor
    B
    On the surface of red blood cells
    C
    On the A-antigen
    D
    On the AB-antigen

  • Where is the presently living?

    A
    Pond
    B
    River
    C
    Lake
    D
    Well.

  • A charge particle travels along a straight line with a speed v in region where both electric field E and magnetic field b are present.It follows that

    A
    `|E|=|B|` and the two field are perpendicular
    B
    `|E|=v|B|` and the two field are perpendicular
    C
    `|B|=v|E|` and the two field are parallel
    D
    `|B|=v|E|` and the two fields are perpendicular

    • Similar Questions

    Explore conceptually related problems

    Which is the initiation codon? Where is it present ?

    Consider a charged particle moving with constant velocity inside a region of space where electric and magnetic field both are present. How can the fields and velocity be directed to achieve this state?

    Where is vesicular cell present ?

    What is the bond between sugar and nitrogen base known as? Where is it present ?

    In equation, r=m^(2)sin pit , where t represent time if the unit of m is N, then the unit of r is

    Home
    Profile