EASY
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In the stem of a typical dicot plant, pericycle exists in the form of patches. These patches are formed by

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Important Questions on Morphology and Modifications

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

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

Identify the labelled parts 1, 2, 3, 4 in the below figure.

Question Image

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
Helianthus distinguished from maize based on this anatomical character
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?
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.

HARD
Differentiate between structure of vascular bundle of a dicot stem and a monocot stem.
MEDIUM
Draw illustrations to bring out the anatomical difference between Monocot stem and Dicot stem.
EASY
Meaningful girdling (Ringing) experiments cannot be done on sugarcane because
HARD

Read the following statements with respect to dicot stem and select the right choice.

i. The epidermis is covered with a thick layer of cuticle.
ii. The cells of endodermis are rich in starch grains.
iii. The pericycle is present on the inner side of endodermis and above the phloem in the form of semilunar patches of sclerenchyma.
iv. The vascular bundles are arranged in a ring.

MEDIUM
The vascular bundles in the stem of monocots are typically
HARD
Mention differences in the vascular bundles of sunflower and maize stems.
MEDIUM

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

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MEDIUM
Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or a dicot stem? Give reasons.
HARD
Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is monocot stem or dicot stem. Give reasons.
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?