Pith

Text Solution

Verified by Experts

A single tracheid is a highly elongated or tube-like cell with hard, thick and lignified walls and a large cavity. They are devoid of protoplast and hence dead. The ends of the tracheids are tapering, blunt or chisel-like. These are constituents of the xylem of primitive plants.
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the following statements (i). Multicellular epidermal hair (ii). Collenchhymatous hypodermis (iii). Pith present (iv). Vascular bundles present in a ring i.e., eustele above given features describe which of the following plant parts?

How many of the following statements are correct? 1. Conjoint vascular bundles are not present in monocot stem. 2. Casparian strips of endodermis are made of cutin. 3. Pith is large and well developed in monocot roots. 4. Trichome helps in water loss due to transpiration.

Given below are two statements A and B, each with one or two blanks. Select the option, which correctly fill up the blanks in two statements. Statements : (A) Cicer root is ………(i)……..and ……….(ii)………. (B) Pith is well developed in the dicotyledonae stem and ......(i).....

pick up the wrong differences between dicot and monocot root {:("Character","Dicot Root","Monocot Root"),("Activity of pericycle",-"Lateral root production",-"Secondary growth and cambium"),("Vascular bundle",-"Diarch to tetrarch",-"Polyarch"),("Cambium",-"Lateral, development",-"Absent"),("Pith",-"Well developed",-"Poorly developed"):}

Read the following characteristics (I - IV) and identify the structure to which these features correspond I. Cortex is made up of several layers of thin walled parenchyma cells without any intercellular spaces. II Endoderm is made up of a single layer of barrel - shaped cells without any intercellular spaces. III . Few layers of thick - walled parenachymatous cell forms pericycle. IV. Pith is small or inconspicuous. V. Conjunctive tissue present , and 2 to 4 xylem and phloem patches.

two pith balls each with mass m are suspended from insulating threads. When the pith balls are given equal positive charge Q, they hang in equilibirum as shown. We now increase the charge on the left pith ball from Q to 2Q while leaving its mass essentially unchanged. Which of he following diagrams best represent the new equilibrium configuration?

List of some of the structural part is given below: Pericycle, pith vascular bundles ad medullary rays Which is not a part of stele in thhe primary Internal structure of dicotyledonae and monocotyledonae roots.

Two identical pith balls are charged by rubbing against each other. They are suspended from a horizontal rod through two strings of length 20 cm each, the separation between the suspension points being 5 cm. in equilibrium, the separation between the balls in 3 cm. Find the mass of each ball and the tension in the strings. the charge on each ball gas a magnitude 2.0 xx 10^(-8) C.

Go through the following matches {:((i),"Primary diocot stem",-"Sclerenchymatous hypodermis"),((ii),"Monocot stem",-"Parenchymatous pit"),((iii),"Dicot leaf",-"Praenchymatous pith"),((iv),"Monocot leaf",-"Bulliform cells"):} Which or the following