Anatomy of Flowering Plants
Test 4

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which vascular tissue transports food in plants?

Xylem
Phloem
Parenchyma
Collenchyma
2

Phloem is responsible for the transport of organic nutrients, particularly sucrose, from the leaves to different parts of the plant.

Which of the following statements about sclerenchyma is correct?

Sclerenchyma cells have thick lignified walls and provide mechanical support.
Sclerenchyma cells remain alive at maturity.
Sclerenchyma is mainly responsible for photosynthesis.
Sclerenchyma has thin primary walls with intercellular spaces.
1

Sclerenchyma consists of dead cells with thick lignified walls, providing mechanical support to the plant.

Which part of a dicot stem contains the starch sheath?

Pericycle
Endodermis
Pith
Vascular bundle
2

In dicot stems, the endodermis is rich in starch grains and is known as the starch sheath.

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 cells are responsible for opening and closing of stomata?

Parenchyma cells
Collenchyma cells
Guard cells
Bulliform cells
3

Guard cells control the opening and closing of stomata by regulating turgor pressure.

Which of the following statements about trichomes is correct?

Trichomes are found on roots and help in absorption.
Trichomes help in reducing water loss from aerial parts.
Trichomes are present in xylem and help in conduction.
Trichomes are involved in transport of organic nutrients.
2

Trichomes are epidermal outgrowths that help in reducing transpiration and protecting the plant from herbivores.

Which type of vascular bundle is found in monocot roots?

Radial, polyarch
Conjoint, open
Collateral, closed
Bicollateral
1

Monocot roots have radial, polyarch vascular bundles, meaning they have multiple xylem bundles arranged radially.

Which type of simple permanent tissue stores food and is involved in photosynthesis?

Collenchyma
Parenchyma
Sclerenchyma
Xylem
2

Parenchyma is responsible for food storage and, when containing chloroplasts, participates in photosynthesis.

Which type of plant tissue is present in the pericycle and contributes to lateral root formation?

Collenchyma
Parenchyma
Sclerenchyma
Phloem
2

Parenchyma in the pericycle contributes to the formation of lateral roots in dicot plants.

Which of the following statements about the cortex in roots is correct?

The cortex is composed of lignified dead cells.
The cortex helps in water and nutrient storage.
The cortex contains vascular bundles.
The cortex is the innermost layer of the root.
2

The cortex consists of parenchymatous cells and stores water, nutrients, and starch in roots.

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