EASY
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What are the roles of the hypodermis layer?

Important Questions on Structural Organisation in Plants

EASY
In which type of vascular bundles are Xylem and Phloem present at the same radius?
MEDIUM

Match the following?

Vascular bundles Arrangement Plants
(a) Open (i) Different radial (p) Leaves
(b) Closed (ii) Same radial (q) Dicots
(c)  Radial (iii) Cambium present (r) Monocots
(d) Conjoint (iv) Cambium absent (s) Root

 

MEDIUM
Helianthus distinguished from maize based on this anatomical character
EASY
Identify the incorrect statements among the following.
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
MEDIUM

The transverse section of a plant shows following anatomical features:

(a) Large number of scattered vascular bundles surrounded by bundle sheath
(b) Large conspicuous parenchymatous ground tissue
(c) Vascular bundles conjoint and closed
(d) Phloem parenchyma absent

Identify the category of plant and its part:

MEDIUM

Identify group of plants based on given anatomical characters in sequence.
A) Bicollateral vascular bundles
B) Bulliform cells
C) Ring arrangement of vascular bundles

Answers respectively

EASY
An old piece of dicot stem and a dicot root is given to a candidate during practical examination. Which of the following anatomical structures can be used to distinguish between the two?
EASY
The transverse section of a plant material shows the following anatomical features - (a) the vascular bundles are conjoint, scattered and surrounded by a sclerenchymatous bundle sheaths. (b) phloem parenchyma is absent. What will you identify it as?
MEDIUM

Read the following statements with respect to the dicot stem and select the correct option.

(a) Epidermis is covered with a thin layer of cuticle, may bear trichomes, and a few stomata.

(b) Ring arrangement of conjoint, collateral, and open vascular bundles. 

(c) Presence of semilunar patches of sclerenchyma above the phloem.

(d) Presence of conjunctive tissue between the xylem and the phloem.

MEDIUM

Select the incorrect option with respect to the given anatomy of the plant part.

Question Image

MEDIUM
Cells or tissues constituting pith of dicot stem possess_____ in their cell wall.
MEDIUM
Draw illustrations to bring out the anatomical difference between Monocot stem and Dicot stem.