Anatomy of flowering plants practice · Mixed difficulty

‘Exarch’ is the condition of vascular bundles in which

I. Sunflower seed
II. A wheat leaf
III. Pea plant
IV. Leaf blade of grass
Bulliform cells are present in which of the above plants?

The cells without nuclei are present in

In monocot roots, which type of vascular bundles are found?

A common structural feature of vessel elements and sieve tube elements is

Which of the following statements are true?
I.Uneven thickening of cell well is characteristic of sclerenchyma.
II.Periblem forms the cortex of the stem and the root.
III.Tracheids are the chief water transporting elements in gymnosperms.
IV.Companion cell is devoid of nucleus at maturity.
V.The commercial cork is obtained from Quercus suber.

Read the following statements and select the correct option.
A. Vascular cambium is completely secondary in origin in dicot roots
B. Casparian strips are seen in monocot root and stem.

Statement I: Companion cells help in maintaing the pressure gradient in Sieve tubes.

Statement II: In gymnosperm companion cells absent and albuminous cells present.

Choose the correct answer from the option given below:

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

Apical meristem and intercalary meristem are called primary meristem because?

Apical meristems are present at the

Which one of the following is not a lateral meristem?

In dicot stem, vascular bundles are

In the following, how the sapwood is converted into heartwood?

Characteristic feature of parenchyma is-

The dead component of phloem is

Primary growth is caused by :

Meristamatic tissue helps in the

Abaxial surface of the leaf generally bears

The living mechanical tissue of plants is

Intercellular spaces are found in …A… region. Intercellular spaces are absent in …B… region. Choose the correct option for A and B

Passage cells are thin walled cells found in

Statement (I): Xylem conducts water and minerals from leaves to roots.

Statement (II): Xylem also provides mechanical strength

Specialised regions of plants having active cell division are called

A student while cutting transverse section of plant part observed scattered vascular bundles of various sizes, covered by bundle sheath cells. He also observed water containing cavities inside vascular bundle. This indicates that it is a transverse section of

Roots have all except

The chief water conducting elements of xylem in gymnosperms are

Which of the following is true?

Identify the living plant tissues, whose main function is to provide buoyancy to the plant.

On the basis of variation in form, structure, origin and development, sclerenchyma may be