Class 9 Practice Level 3 – Set 2 – Tissues

Total questions: 15

Discuss how the basement membrane supports the structure and function of epithelial tissues.

Topic: Animal Tissues

The basement membrane provides a surface for epithelial cells to migrate during wound healing.

The basement membrane acts as a barrier to prevent nutrient exchange.

The basement membrane stores fat for the epithelial cells.

The basement membrane conducts electrical impulses.

None

How do gap junctions facilitate communication between cardiac muscle cells?

Topic: Animal Tissues

By preventing the passage of ions between cells

By allowing the direct transfer of electrical signals and small molecules between adjacent cells

By anchoring cells to the extracellular matrix

By forming a waterproof barrier

None

Explain the process of endochondral ossification in the development of long bones.

Topic: Animal Tissues

Bone tissue forms directly from mesenchymal tissue.

Bone tissue replaces a hyaline cartilage model.

Bone tissue forms through the deposition of calcium in fibrous tissue.

Bone tissue forms from epithelial cells.

None

How do Schwann cells contribute to the functioning of the peripheral nervous system?

Topic: Animal Tissues

By forming myelin sheaths around axons, increasing the speed of nerve impulse conduction

By producing neurotransmitters

By connecting neurons to blood vessels

By forming the blood-brain barrier

None

Describe the role of the extracellular matrix in cartilage tissue.

Topic: Animal Tissues

It stores fat for energy.

It provides tensile strength and elasticity, allowing cartilage to withstand pressure and return to its original shape.

It conducts nerve impulses.

It prevents the diffusion of nutrients to cartilage cells.

None

Explain the role of the pericycle in the development of lateral roots.

Topic: plant Tissues

The pericycle stores nutrients for the root.

The pericycle initiates the formation of lateral roots by dividing and differentiating.

The pericycle transports water and minerals.

The pericycle forms the protective outer layer of the root.

None

How does the structure of the palisade mesophyll contribute to its function in photosynthesis?

Topic: plant Tissues

Palisade mesophyll cells are loosely packed, maximizing light absorption.

Palisade mesophyll cells are tightly packed with chloroplasts, optimizing light absorption for photosynthesis.

Palisade mesophyll cells are devoid of chloroplasts, reflecting light.

Palisade mesophyll cells store water for the plant.

None

Discuss the functional significance of the arrangement of vascular bundles in monocot and dicot stems.

Topic: plant Tissues

Monocot stems have scattered vascular bundles for flexibility; dicot stems have a ring arrangement for strength.

Monocot stems have a ring arrangement for strength; dicot stems have scattered vascular bundles for flexibility.

Both monocot and dicot stems have scattered vascular bundles.

Both monocot and dicot stems have a ring arrangement of vascular bundles.

None

How do lignified cell walls in sclerenchyma contribute to their function in plants?

Topic: plant Tissues

They increase the flexibility of plant tissues.

They provide rigidity and structural support to plant tissues.

They aid in photosynthesis.

They enhance water transport efficiency.

None

10.

Explain the role of the cork cambium in secondary growth.

Topic: plant Tissues

It transports nutrients to the leaves.

It produces cork cells that form the outer protective layer of stems and roots.

It stores starch in roots.

It produces primary xylem and phloem.

None

11.

How does the structure of the phloem sieve tubes facilitate their function?

Topic: plant Tissues

Sieve tubes have thick cell walls for strength.

Sieve tubes lack organelles to allow free flow of phloem sap.

Sieve tubes have lignified walls for rigidity.

Sieve tubes are dead cells, aiding in nutrient storage.

None

12.

Describe the process by which lateral meristems contribute to the thickening of stems and roots.

Topic: plant Tissues

Lateral meristems produce new leaves.

Lateral meristems produce secondary xylem and phloem.

Lateral meristems transport water and nutrients.

Lateral meristems form the primary growth of plants.

None

13.

How do intercellular spaces in spongy mesophyll tissue facilitate gas exchange in leaves?

Topic: plant Tissues

By reducing the surface area for gas exchange.

By increasing the surface area for gas exchange.

By storing water for photosynthesis.

By preventing the diffusion of gases.

None

14.

Explain the significance of tracheary elements (tracheids and vessel elements) having thickened cell walls.

Topic: plant Tissues

They provide flexibility to the plant.

They enhance the plant's photosynthetic capacity.

They provide structural support and facilitate efficient water transport.

They store nutrients for the plant.

None

15.

How does the differentiation of cells in the root apical meristem contribute to root development?

Topic: plant Tissues

It only produces root hairs.

It leads to the formation of all root tissues, including epidermis, cortex, and vascular tissues.

It forms the leaves of the plant.

It prevents the root from growing longer.

None

1 out of 15

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Class 9 Practice Level 3 – Set 2 – Tissues

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