NEET Botany Anatomy Of Flowering Plants Class 11 Questions

Water containing cavities are present with the vascular bundles of :

In dorsiventral leaf, the location of palisade tissue and phloem respectively is :

Statement I: Next to endodermis in dicot root lies a few layers of thick-walled parenchymatous cells referred to as pericycle. Statement II: Initiation of lateral roots and vascular cambium during the secondary growth in monocot roots takes place in pericycle region.

Statement I: In conjoint vascular bundles xylem and phloem are present separately. Statement II: Vascular bundles are arranged in a ring, each bundle in open, conjoint in dicot stem.

Identify the incorrect statement from the following.

Parenchymatous cells with large intercellular spaces which occupy the central portion of the stem constitute :-

In grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells. These cells are called :

Which of the following is a wrong statement? (i) Ground tissue consists of simple tissues such as parenchyma, collenchyma and sclerenchyma. (ii) Parenchymatous cells are usually present in cortex, pericycle, pith and medullary rays in the primary stems and roots. (iii) In leaves, the ground tissue consists of thin-walled chloroplast containing cells and is called mesophyll. (iv) In dicotyledonous stems, closed vascular bundles present. (v) In the monocotyledons open vascular bundles present.

Select true statement from given statement. (i) When xylem and phloem within a vascular bundle are arranged in an alternate manner on different radii, the arrangement is called radial. (ii) In conjoint type of vascular bundles, the xylem and phloem are situated at the same radius of vascular bundles. (iii) Conjoint type of vascular bundles present in stems and leaves. (iv) In the conjoint vascular bundles usually have the phloem located only on the inner side of xylem. (v) The cortex consists of several layers of thin-walled collenchyma cells with intercellular spaces.

In angiosperms, root hairs arise from which one of the following regions of the root?

The main function of bulliform cells in grasses is :

Match List-I with List-II :

Find the statement that is NOT correct with regard to the structure of monocot stem.

In the given figure, which component has thin outer walls and highly thickened inner walls?

Given below are two statements: Statement I: Parenchyma is living but collenchyma is dead tissue. Statement II: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms. In the light of the above statements, choose the correct answer from the options given below:

Bulliform cells are responsible for

In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as :

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 correct statements : A. Lenticels are the lens-shaped openings permitting the exchange of gases. B. Bark formed early in the season is called hard bark. C. Bark is a technical term that refers to all tissues exterior to vascular cambium. D. Bark refers to periderm and secondary phloem. E. Phellogen is single-layered in thickness. Choose the correct answer from the options given below :

In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to:

Read the following statements about the vascular bundles. i. In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii. ii. Conjoint closed vascular bundles do not possess cambium iii. In open vascular bundles, cambium is present in between xylem and phloem iv. The vascular bundles of dicotyledonous stem possess endarch protoxylem v. In monocotyledonous root, usually there are more than six xylem bundles present Choose the correct answer from the options given below:

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood. i. It is also called as the earlywood ii. In spring season cambium produces xylem elements with narrow vessels iii. It is lighter in colour iv. The springwood along with autumnwood shows alternate concentric rings forming annual rings v. It has lower density Choose the correct answer from the options given below:

Match List - I with List - II.

Match List - I with List - II.

Select the correct pair.

Identify the incorrect statement.

Phloem in gymnosperms lacks:

Stomata in grass leaf are

Casparian strips occur in

Which of the following facilitates opening of stomatal aperture?

Root hairs develop from the region of

The vascular cambium normally gives rise to

Identify the WRONG statement in context of heartwood.

Specialised epidermal cells surrounding the guard cells are called

A major characteristic of the monocot root is the presence of

In a ring girdled plant:

Vascular bundles in monocotyledons are considered closed because

Transmission tissue is characteristic feature of

Tracheids differ from other tracheary elements in

You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?

Which of the following statement is not true for stomatal apparatus?