Practice Corner MCQs

Meristematic tissues are composed of

In endarch condition of xylem, protoxylem lies ______ of metaxylem.

In (i), protoxylem lies towards periphery and metaxylem lies towards centre. Such an arrangement of primary xylem is called as (ii).

Which of the following conditions of xylem is present in both monocot and dicot stems?

Read the following statements and select the correct ones.
(i) Phloem parenchyma is absent in most monocots.
(ii) Gymnosperms lack tracheids and vessels.
(iii) Gymnosperms lack companion cells.

Select the incorrect pair out of the following.

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

Identify the types of vascular bundle in the given figures (i) and (ii) and select the correct option.

Select the mismatched pair.

Given figures ( P and Q ) represent the stomatal apparatus of dicot and monocot leaves, respectively. Select the option which correctly labels A, B and C.

Identify the plants (from the list i – vi) which possess the given type of guard cells (as shown in the diagram) in their leaves.

(i) Grass
(ii) Tomato
(iii) Banana
(iv) Brinjal
(v) Soybean
(vi) Lily

Epidermal tissue system is derived from

Three types of tissue system have been recognised in plants on the basis of their functions. Select the correct option regarding this.

Read the given paragraph where few words are underlined. Select the option that correctly replaces the underlined words (if necessary).
The epidermal tissue system forms the innermost covering of whole plant body. Epidermis is usually multilayered and consists of pores called stomata. Each stoma is composed of two subsidiary cells which lack chloroplast and regulate opening and closing of stomata. Few cells in the vicinity of subsidiary cells get specialised to form guard cells.

Which of the following tissue systems constitutes bulk of the plant body?

In ____ vascular bundle, a strip of vascular cambium is present in between the xylem and phloem.

Radial vascular bundles characteristically occur in

Identify the type of vascular bundle as shown in the figure and select the incorrect statement regarding it.

Which of the following is an incorrect pair?

Casparian strips are the bands of thickenings present on ____ walls of endodermis.

A diagram of T.S. of dicot root is given. Select the option which correctly labels A, B, C, D, and E.

Stele includes

Transverse section of a part of a typical monocotyledonous root has been shown in the given figure. Identify the different parts (from A to l) and select the correct option.

Polyarch vascular bundles generally occur in

A typical monocotyledonous root is characterised by

Following table summarises the differences between a monocot root and a dicot root.

\(
\begin{array}{|c|l|l|l|}
\hline & \text { Characters } & \text { Monocot root } & {\text { Dicot root }} \\
\hline \text { (i) } & \begin{array}{l}
\text { Vascular } \\
\text { bundle }
\end{array} & \begin{array}{l}
\text { Polyarch, i.e., } \\
\text { more than } 6 \\
\text { vascular bundles }
\end{array} & \begin{array}{l}
\text { Diarch to } \\
\text { hexarch, i.e., } \\
2-6 \text { vascular } \\
\text { bundles }
\end{array} \\
\hline \text { (ii) } & \text { Cambium } & \text { Absent } & \begin{array}{l}
\text { Present, so } \\
\text { secondary } \\
\text { growth occurs }
\end{array} \\
\hline \text { (iii) } & \text { Pith } & \begin{array}{l}
\text { Poorly } \\
\text { developed }
\end{array} & \begin{array}{l}
\text { Well } \\
\text { developed } \\
\text { large pith }
\end{array} \\
\hline \text { (iv) } & \begin{array}{l}
\text { Activity of } \\
\text { pericycle }
\end{array} & \begin{array}{l}
\text { Gives rise to } \\
\text { secondary } \\
\text { roots and cork } \\
\text { cambium }
\end{array} & \begin{array}{l}
\text { Gives rise to } \\
\text { lateral roots } \\
\text { only }
\end{array} \\
\hline
\end{array}
\)

Identify the incorrect differences and select the correct option.

Read the following statements.
(i) Multicellular epidermal hair
(ii) Collenchymatous hypodermis
(iii) Pith present
(iv) Vascular bundles present in a ring i.e., eustele Above given features describe which of the following plant parts?

Read the following statements and select the correct option.
Statement 1 : Anatomically, all the tissues present on the inner side of endodermis such as pericycle, vascular bundles and pith constitute the stele.
Statement 2 : Eustele is the stele in which vascular bundles are arranged in the form of a ring as present in dicot stems.

Read the following statements with 1-2 blanks in each one of them.
(i) In monocot root, a large number of vascular bundles are arranged in the form of a ____ around the central ____.
(ii) Due to the presence of ____, the endodermal cells do not allow wall to wall movement of substances between cortex and pericycle, in a primary dicot root.
(iii) The epidermis of stem of sunflower bears several unbranched _____ hair.
(iv) The central portion of a dicot stem is usually occupied by _____ parenchymatous cells. comprising of thin-walled
Select the option that correctly fills the blanks in any two of them.

Vascular bundle is enclosed within a well developed sclerenchymatous sheath in

Hypodermis is ____ in sunflower stem and ____ in maize stem.

Well developed pith is found in

Select the incorrect statement regarding the anatomy of a typical monocotyledonous stem.

Figures X and Y represent the transverse sections of ____ and _____ respectively.

Select the mismatched pair.

Bicollateral vascular bundles are found in

Y- shaped arrangement of xylem vessels is found in

Which plant part possesses polyarch condition of vascular bundles with a well developed pith?

Refer to the given figure which represents a section of vascular bundle as seen in.T.S. of a monocot stem and select the option that correctly labels A, B, C and D.

In a dorsiventral leaf, location of palisade tissue and phloem is respectively on the ____ surfaces.

The given figure shows T.S. of Helianthus leaf with various parts labelled as A, B, C, D, E and F. Identify the parts and select the correct option.

Identify A, B, C and D in the given transverse section of leaf of Zea mays.

In a dorsiventral leaf, what is true regarding the position of xylem?

Bundle sheath extensions in a dicot leaf and in a monocot leaf are and

Select the correct pair out of the following.

Study the following statements regarding the anatomy of isobilateral leaf.
(i) Stomata are equally distributed on both the surfaces.
(ii) Certain adaxial epidermal cells are modified into bulliform cells in grasses.
(iii) The vascular bundles are radial.
(iv) Phloem is adaxially placed.
Which of the above statements are correct?

Increase in girth of the plant as a result of the activities of primary and secondary lateral meristems is called

In dicot stems, cambium present between primary xylem and primary phloem is

In a mature dicot stem which has undergone secondary growth, youngest layer of secondary xylem is situated

Which of the following statements is incorrect?

Match column I with column II and select the correct option from the given codes.

\(
\begin{array}{|c|l|c|l|}
\hline & \text { Column I } & & \text { Column II } \\
\hline \text { A. } & \text { Bulliform cells } & \text { (i) } & \begin{array}{l}
\text { Regulate opening and } \\
\text { closing of stomata }
\end{array} \\
\hline \text { B. } & \text { Guard cells } & \text { (ii) } & \begin{array}{l}
\text { Aerating pores in the bark } \\
\text { of plant }
\end{array} \\
\hline \text { C. } & \text { Lenticels } & \text { (iii) } & \begin{array}{l}
\text { Rolling in and out of } \\
\text { leaves }
\end{array} \\
\hline \text { D. } & \text { Subsidiary cells } & \text { (iv) } & \text { Accessory cells } \\
\hline
\end{array}
\)

Consider the following statements regarding the given figure and select the correct one.

Given are a few peculiar parts/structures found in plants. Cucurbita stem, potato tuber, walnut shell, jute fibres. Identify the tissue responsible for the distinguishing feature in each part respectively and select the correct option.