Mechanical properties of sclerenchyma are due to ____.

Correct! Wrong!

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Sclerenchyma is mechanical in function and is a dead cell. It is characterized by the presence of lignin which provides mechanical strength to it.

____ is a mechanical tissue.

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Collenchyma is a mechanical tissue. It provides tensile strength and flexibility. It provides mechanical support and elasticity. Thus known as mechanical tissue.

Parenchyma cell having large air cavities is known as ____.

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Parenchyma cells that have large air cavities are known as aerenchyma. Aquatic plants have the air cavities in parenchyma.

Which of the following are living cells and possess the power for division?

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Parenchyma cells are living and possess the power for division.

Collenchyma mainly forms the ____.

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Collenchyma mainly forms the hypodermis. The cells of collenchyma, located below the epidermis, providing support are known as the hypodermis.

Sclerenchyma provides ____ to the plants.

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Sclerenchyma, the type of permanent tissue is made of dead cells gives strength to the plant parts.

Tracheids, vessels, fibres and parenchyma cells are present in ____.

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Tracheids, vessels, fibres and parenchyma cells are present in xylem.

Tissue is a group of ____.

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Tissue is a group of cells alike in form and functions

____ acts as cement and make the sclerenchyma tissue hard.

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Lignin acts as cement and makes the sclerenchyma tissue hard. The walls of the cells of sclerenchyma are thickened with the deposition of lignin and are called lignified.

____ is the nature of ligament.

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Ligament is a connective tissue. It has considerable strength due to its elastic nature.

____ type of tissue forms glands.

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Epithelial type of tissue forms glands.

Which of the following statements is false?

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Typically, one surface of an epithelial tissue layer consists of loosely packed cells with several intermediate spaces is false.

Areolar tissue is type of ____.

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Areolar is a type of connective tissue that fills the spaces inside the organs.

____ is composed of mainly dead cells.

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Xylem is composed of mainly dead cells.

The intracellular space in collenchyma is very little.

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The intracellular space in collenchyma is very little.

____ tissue is responsible for length of a plant.

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Apical meristem is responsible for length of a plant. It is present at the growing tip of the plants

Which of the following makes the plant hard and stiff?

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Sclerenchyma makes the plant hard and stiff. The type of permanent tissues called, sclerenchyma cells are dead cells.

Intercalary meristems are present in ____.

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Length of internodes is increases by rapid division of intercalary meristems.

Thickening of collenchyma is due to a chemical called ____.

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Collenchyma provides mechanical strength. It is a living and is characterized by the deposition of pectin in cell wall.

Epidermis of a leaf is not continuous because, ____.

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Stomata are the small pores present in the epidermis. Hence epidermis in leaf is not continuous.

In ____, large air cavities are present in parenchyma.

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In aquatic plants large air cavities are present in parenchyma. In aquatic plants parenchyma cells have lot of air cavities between them where air is stored.

Ciliated epithelium is found in ____.

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Ciliated epithelium is found in trachea.

Myosin and Actin are ____.

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Myosin and Actin are proteins.

Tendons and ligaments are formed of ____ tissue.

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Tendons and ligaments are formed of connective tissue. Ligament tissue is very elastic and tendons are fibrous tissue with great strength but limited flexibility.

The neuron is a ____.

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The neuron is a nerve cell.

Meristematic cells are ____.

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Meristematic cells are thin walled, densely protoplasmic, isodiametric and nucleated

Which of the following are actively dividing cells?

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Cambium divides actively.

Cell wall thickening is not uniform in the cells of sclerenchyma.

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The cells of sclerenchyma are closely packed without intercellular space. Thus, these cells are fitted like tiles in the mosaic floor. Hence, the cell wall thickening is uniform.

____ muscle tissue is present in all internal organs except the heart.

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Smooth muscle tissue is present in all internal organs except the heart.

Strongest muscles in human body are found in ____.

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Strongest muscles in human body are found in jaws.

ICSE Class 9th Biology - Tissues MCQs
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