Anatomy of Flowering Plants Chapter-Wise Test 8

Correct answer Carries: 4.

Wrong Answer Carries: -1.

What type of vascular bundle is found in leaves?

Radial
Conjoint
Closed
Collateral
2

Leaves have conjoint vascular bundles where xylem and phloem are together on the same radius.

Which simple tissue in plants is responsible for photosynthesis in leaves?

Collenchyma
Sclerenchyma
Parenchyma
Xylem
3

Parenchyma in leaves contains chloroplasts and is called mesophyll, which carries out photosynthesis.

Which type of mesophyll tissue is responsible for maximum photosynthesis in dicot leaves?

Palisade parenchyma
Spongy parenchyma
Collenchyma
Epidermal cells
1

Palisade parenchyma cells contain abundant chloroplasts and carry out most of the photosynthesis in dicot leaves.

Which of the following statements about the endodermis in dicot roots is correct?

It is the outermost layer of the root.
It consists of loosely arranged cells with intercellular spaces.
It contains Casparian strips, which regulate water movement.
It is made up of dead cells.
3

The endodermis has Casparian strips, which prevent passive water flow and regulate selective absorption.

Which of the following statements about sclerenchyma is incorrect?

Sclerenchyma provides mechanical support to plants.
Sclerenchyma cells are dead at maturity.
Sclerenchyma cells have thin cellulose walls.
Sclerenchyma includes fibers and sclereids.
3

Sclerenchyma cells have thick, lignified walls that provide strength and rigidity to plant structures.

Which of the following statements about the epidermal tissue system is correct?

The epidermis is usually single-layered and protects the plant.
Epidermal cells are dead at maturity and have thick walls.
Stomata are present in roots for gaseous exchange.
The cuticle is present in all plant organs, including roots.
1

The epidermis is a single-layered protective layer in plants. It is made up of living cells, and the cuticle is absent in roots.

Which part of the dicot stem lies between the vascular bundles and functions in lateral conduction?

Pith
Medullary rays
Pericycle
Endodermis
2

Medullary rays are parenchymatous cells between vascular bundles that aid in lateral conduction.

Which of the following statements about casparian strips in endodermis is incorrect?

Casparian strips prevent passive water flow.
Casparian strips regulate water movement into the vascular bundle.
Casparian strips are made up of suberin.
Casparian strips are found in phloem.
4

Casparian strips are found in the endodermis, not in phloem, and they regulate the entry of water and solutes into vascular tissue.

Which cells in the leaves help in minimizing water loss by curling under dry conditions?

Guard cells
Mesophyll cells
Bulliform cells
Bundle sheath cells
3

Bulliform cells help in minimizing water loss by causing the leaf to curl inward under water stress conditions.

Which of the following statements about companion cells in phloem is correct?

Companion cells are dead at maturity.
Companion cells help in the functioning of sieve tube elements.
Companion cells transport water and minerals.
Companion cells have thick, lignified walls.
2

Companion cells are living cells that help regulate the function of sieve tube elements in transporting organic nutrients.

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