Anatomy of flowering plants practice · Medium

The cells without nuclei are present in plant:

Grass elongates after cutting (moving) due to

Assertion: Vascular bundle of monocot stem is
conjoint.

Reason: Vascular bundle of monocot stem are
open and phloem parenchyma is absent.

A tree grows at the rate of 0.5m per year. What will be the height of board fixed at 1.5m above the ground level five years age?

Hardness of seed coats is due to the presence of

Identify the type of plant tissue being represented by the set of statements given below I. Their cells are isodiametric (they may be spherical, oval, round, etc.) II. Their cell walls are thin and made up of cellulose III. They may either be closely packed or have small intercellular spaces IV. They perform functions like photosynthesis, storage, secretion, etc.

In a vascular bundle, if xylem vessels develop in a centripetal fashion, the xylem is likely to be

Which of the following cells are studied during translocation of solutes?

Collenchyma is

Tracheids

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is

Cambium is present in between

Identify the simple tissue from among the followin

Epidermis is often covered with a waxy thick layer called

A nail is driven into the trunk of a 30 years old tree at a point 1 m above the soil level. The tree grows in height at the rate of 0.5m a years. After three years, nail will be

Most primitive type of simple tissue is

Assertion : In angiosperms, the conduction of
water is more efficient because their xylem has
vessels.

Reason : Conduction of water by vessel elements
is an active process with energy supplied by
xylem parenchyma rich in mitochondria.

Assertion : Open vascular bundles are found
in dicot stem & gymnosperm.

Reason : Cambium is absent in between xylem
& phloem.

I. The 1° and 2° phloem get gradually crushed due to the continued formation and accumulation of 2° xylem
II. 1° xylem remains more or less intact in or near the centre
III. Secondary growth results in an increase in the length of the axis
Select the correct statements

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by

Meristematic tissue are

I. It is resistant to microorganisms II. It comprises dead elements III. It comprises highly lignified cell wall IV. It is the peripheral part V. It is dark and tough Which of the above property doesn’t belongs to heart wood?

Which of the following is not a function of parenchyma tissue?

Statement-(I): Anatomically, all the tissues present on the inner side of endodermis such as pericycle, vascular bundles and pith constitute the stele.

Statement-(II): Eustele is the stele in which vascular bundles are arranged in the form of a ring as present in dicot stems.

As compared to the dicot root, monocotyledon root have

All of the given characteristics are related to parenchyma tissue except

A tree grows at the rate of 0.5 m per year. What will be the height of the board fixed at 1.5 m above the base five years ago?

Various functions like photosynthesis, storage, excretion performed by _______.

Vascular bundle in the laves of dicots are surrounded by

A plant tissue when stained showed the presence of hemicellulose and pectin in cells wall of its cells. The tissue is called