Anatomy of Flowering Plants
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Anatomy and functions of different tissues
SubtopicAnatomy and functions of different tissues under Anatomy of Flowering Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Small, specialized epidermal cells found adjacent to the guard cells in some plants are called:
A.Bulliform cells
B.Subsidiary cells
C.Complementary cells
D.Lenticels
- 2.
Which part of the plant lack a cuticle on its epidermal surface?
A.Stem
B.Leaves
C.Fruits
D.Roots
- 3.
The protoxylem and metaxylem are types of:
A.Primary xylem
B.Secondary xylem
C.Primary phloem
D.Secondary phloem
- 4.
Suberin is a chemical substance found in the cell walls of which tissue in the root?
A.Epidermis
B.Endodermis
C.Xylem
D.Phloem
- 5.
Which layer of the ground tissue in dicot stems consists of thin-walled parenchymatous cells with conspicuous intercellular spaces, occupying the inner layer of the cortex?
A.Hypodermis
B.Cortical layers
C.Endodermis
D.Pericycle
- 6.
In a dicot leaf, the size of the vascular bundles is dependent on:
A.The size of the leaf
B.The size of the veins
C.The thickness of the cuticle
D.The number of stomata
- 7.
Identify the characteristic of sclereids, which are a type of sclerenchyma.
A.Highly elongated cells with pointed ends
B.Spherical, oval or cylindrical, highly thickened dead cells with very narrow cavities (lumen)
C.Living cells with thin cellulosic walls
D.Cells involved in the conduction of water and minerals
- 8.
A student views a cross-section of a root and identifies a large number of xylem bundles (more than 6) and a very prominent pith. Which plant did this section likely come from?
A.Sunflower
B.Maize
C.Pea
D.Gram
- 9.
During the secondary growth of a dicot stem, the vascular cambium is more active on the:
A.Outer side, producing more secondary phloem.
B.Inner side, producing more secondary xylem.
C.Both sides equally, maintaining a balance between xylem and phloem.
D.Lower side only, due to gravitational influence.
- 10.
Which of the following statements about xylem parenchyma is correct?
A.They are dead cells with lignified walls.
B.They store food materials in the form of starch or fat.
C.They are responsible for the axial conduction of water.
D.They are found only in the secondary xylem.
Download the worksheet for Anatomy of Flowering Plants - Anatomy and functions of different tissues to practice offline. It includes additional chapter-level practice questions.
Tissue systems in dicots and monocots
SubtopicTissue systems in dicots and monocots under Anatomy of Flowering Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
In a vascular bundle, if xylem and phloem are arranged in a conjoint manner and cambium is present between them, it is called:
A.Closed
B.Radial
C.Open
D.Exarch
- 2.
Which part of the plant lack a cuticle on its epidermal surface?
A.Dicot stem
B.Monocot stem
C.Root
D.Dicot leaf
- 3.
In monocot leaves, the stomata are distributed:
A.Only on the upper surface
B.Only on the lower surface
C.On both the surfaces
D.Only on the leaf margins
- 4.
The inner walls of guard cells (towards the stomatal pore) are:
A.Very thin
B.Highly thickened
C.Non-existent
D.Always suberized
- 5.
During the maturation of a dicot root, the cambium ring is formed from:
A.Endodermis only
B.Pericycle and tissue located below phloem bundles
C.Epiblema and cortex
D.Pith and medullary rays
- 6.
Which component of the epidermal tissue system helps in reducing the rate of transpiration by covering the outer surface of the epidermis?
A.Stomata
B.Cuticle
C.Trichomes
D.Guard cells
- 7.
The large, thin-walled, colorless cells present on the adaxial epidermis of grass leaves are:
A.Guard cells
B.Subsidiary cells
C.Bulliform cells
D.Passage cells
- 8.
How does the 'epiblema' of a root differ from the 'epidermis' of a stem?
A.Epiblema lacks a cuticle and contains unicellular root hairs; stem epidermis has a cuticle and may have multicellular trichomes.
B.Epiblema has a thick cuticle; stem epidermis lacks it.
C.Epiblema contains stomata; stem epidermis does not.
D.Epiblema is multicellular; stem epidermis is unicellular.
- 9.
Which of the following statements about the 'mesophyll' of a dorsiventral leaf is correct?
A.Palisade parenchyma is placed abaxially and made of spherical cells.
B.Spongy parenchyma is placed adaxially and consists of elongated cells.
C.Palisade parenchyma is placed adaxially and made of vertically arranged, elongated cells.
D.Spongy parenchyma is placed abaxially and lacks intercellular spaces.
- 10.
Identify the correct anatomical description for a 'conjoint, collateral, and closed' vascular bundle.
A.Xylem and phloem are on the same radius, and cambium is present.
B.Xylem and phloem are on different radii, and cambium is absent.
C.Xylem and phloem are on the same radius, and cambium is absent.
D.Xylem surrounds the phloem, and cambium is present.
Download the worksheet for Anatomy of Flowering Plants - Tissue systems in dicots and monocots to practice offline. It includes additional chapter-level practice questions.
Secondary growth
SubtopicSecondary growth under Anatomy of Flowering Plants for Grade 11 CBSE.
Preview questions (no answers)
- 1.
As the stem continues to increase in girth due to the activity of vascular cambium, the outer cortical and epidermis layers:
A.Continue to grow indefinitely
B.Get broken down and need to be replaced
C.Turn into secondary xylem
D.Become part of the pith
- 2.
Which tissue in the periderm is commonly used as a commercial bottle stopper?
A.Phelloderm
B.Phellem
C.Phellogen
D.Secondary phloem
- 3.
The formation of the cambial ring in a dicot stem involves:
A.Only intrafascicular cambium
B.Only interfascicular cambium
C.Both intrafascicular and interfascicular cambium
D.Apical meristem and phellogen
- 4.
In autumn wood, the xylem vessels are:
A.Wider
B.Narrower
C.Absent
D.Very few in number but very large
- 5.
Which of the following layers is responsible for the formation of the periderm in roots?
A.Epidermis
B.Endodermis
C.Pericycle
D.Hypodermis
- 6.
Identify the tissue that is NOT found in a primary dicot stem but appears after secondary growth starts.
A.Protoxylem
B.Metaphloem
C.Interfascicular cambium
D.Sclerenchyma fibres
- 7.
Why does the epidermis in a woody stem eventually peel off or break?
A.Due to loss of water
B.Due to the pressure exerted by the increasing volume of secondary tissues
C.Due to the action of wind
D.Because the cells become lignified
- 8.
Which of the following tissues constitutes the 'Inner Bark'?
A.Phellem
B.Phelloderm
C.Functional secondary phloem
D.Non-functional secondary xylem
- 9.
In roots, secondary growth leads to the increase in girth, similar to stems. However, which of the following is absent in most dicot roots even after secondary growth?
A.Secondary xylem
B.Pith (or very small pith)
C.Phellogen
D.Annual rings
- 10.
The secondary medullary rays serve the purpose of:
A.Vertical conduction of water
B.Radial conduction of food and water
C.Mechanical support only
D.Protection against pathogens
Download the worksheet for Anatomy of Flowering Plants - Secondary growth to practice offline. It includes additional chapter-level practice questions.