Which of the following tissues is not present in monocotyledons?
Important Questions on Anatomy of Flowering Plants
Which of the following are the characteristic features of phloem?
i) Gymnosperms have albuminous cells and sieve cells
ii) Presence of tracheids
iii) They store food materials in the form of starch or fat
iv) They have sieve tube elements that are long, tube-like structures
v) Their end walls are perforated in a sieve like manner
The correct combination is
Which of the following is an incorrect statement?
Match List - I with List - II.
| List-I | List-II | ||
| (a) | Cells with active cell division capacity | (i) | Vascular tissues |
| (b) | Tissue having all cells similar in structure and function | (ii) | Meristematic tissue |
| (c) | Tissue having different types of cells | (iii) | Sclereids |
| (d) | Dead cells with highly thickened walls and narrow lumen | (iv) | Simple tissue |
Select the correct answer from the options given below.
A) Epidermal cells are parenchymatous and have small amount of cytoplasm
B) Gymnosperms have vessels in their xylem
C) In bicollateral vascular bundle, phloem is present on either side of cortex
D) Root endodermal cells have deposition of water impermeable, suberin as casparian strips
Given below are two statements:
Statement I: Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.
Statement II: Exarch condition is the most common feature of the root system.
In the light of the above statements, choose the correct answer from the options given below:
Identify the tissues based upon the following characters respectively:
| I) Large, colourless, empty cells along with leaf veins are used for absorption of water | A) Axillary bud |
| II) Cells much elongated, unbranched with pointed needle like apices and thick cell wall are dead at maturity | B) Phloem fibre |
| III) The cells are longitudinally arranged with perforated end walls | C) Bulliform cells |
| IV) Cells left behind from shoot apical meristem | D) Sieve tube elements |
(A) Ring arrangement of the vascular bundle is a character of the dicot system.
(B) The root hairs are branched and sometimes secretory.
(C) The storage cells in the xylem are thin-walled, made up of cellulose, and store tannin-like substances.
(D) Parenchyma cells are generally present in medullary rays.
