TISSUE: CLASS 9: CBSE

 

Title: Cellular Organization in Living Organisms

1. Introduction
• All living organisms consist of cells as their fundamental structural and functional units.
• Cellular organization varies between unicellular and multicellular organisms.
2. Unicellular Organisms
• In unicellular organisms, a single cell performs all essential functions.
• Example: Amoeba carries out movement, food intake, gaseous exchange, and excretion within a single cell.
3. Multicellular Organisms
• Multicellular organisms consist of millions of cells.
• Most of these cells are specialized to perform specific functions efficiently.
4. Division of Labour
• Multicellular organisms exhibit a division of labour among specialized cells.
• Different groups of cells are responsible for distinct functions.
5. Specialized Cells in Humans
• In humans, muscle cells contract and relax for movement, nerve cells transmit messages, and blood transports oxygen, nutrients, hormones, and waste materials.
6. Specialized Cells in Plants
• Plants have vascular tissues that conduct food and water throughout the plant.
• This specialization optimizes the efficiency of function.
7. Formation of Tissues
• Cells with similar structure and function group together to form tissues.
• A tissue is a cluster of cells organized for efficient performance.
• Examples include blood tissue, phloem tissue, and muscle tissue.

Title: Comparative Analysis of Plant and Animal Tissues

Introduction

• Plants and animals differ in their structural organization and functions.
• This comparison explores the distinctions between plant and animal tissues.

Structural Differences

1. Plants are Stationary; Animals Move
• Plants are fixed in one place and do not exhibit movement.
• Animals are mobile and actively move in search of food, mates, and shelter.
2. Supportive Tissues
• Plants require substantial supportive tissue to remain upright.
• Supportive plant tissues often consist of dead cells.
• Animals do not require extensive supportive tissues as they can move to maintain their position.
3. Living vs. Dead Cells
• Most of the tissues in animals are composed of living cells.
• In contrast, many plant tissues contain dead cells, especially in supportive structures.

Growth Patterns

1. Plant Growth
• Growth in plants is primarily localized to specific regions.
• Some plant tissues continue to divide throughout their life, but this growth is confined to certain areas.
• Plant tissues can be categorized as meristematic (dividing) and permanent (non-dividing) based on their growth capacity.
2. Animal Growth
• Cell growth in animals is more uniform throughout their bodies.
• Unlike plants, there is no clear demarcation between dividing and non-dividing regions in animals.

Specialization in Organ Structure

1. Complexity in Animals
• Complex animals exhibit highly specialized and localized structural organization of organs and organ systems.
• This specialization reflects their diverse feeding methods and active locomotion.
2. Comparatively Simpler Plants
• Even very complex plants have a less specialized organ structure than complex animals.
• This difference arises from the sedentary nature of plants and their mode of obtaining nutrients.

Adaptations for Lifestyle

1. Sedentary Existence in Plants
• Plants are adapted for a sedentary lifestyle, with structures like roots anchoring them in place and leaves for photosynthesis.
2. Active Locomotion in Animals
• Animals are adapted for active locomotion, with structures like limbs or fins for movement.

Conclusion

• The contrasting structural organization and functions of plant and animal tissues are influenced by their distinct modes of life and nutritional strategies. Understanding these differences is essential in studying the concept of tissues in greater detail.

 

Title: Meristematic Tissue in Plants

Introduction

• In plants, growth is limited to specific regions due to the presence of meristematic tissue.
• Meristematic tissue is classified into apical, lateral, and intercalary meristems, depending on their locations.
• New cells produced by meristems initially resemble meristematic cells but gradually differentiate into other types of tissues.

Types of Meristematic Tissues

1. Apical Meristem
• Located at the growing tips of stems and roots.
• Responsible for increasing the length of stems and roots.
2. Lateral Meristem (Cambium)
• Responsible for increasing the girth (thickness) of stems and roots.
• Promotes secondary growth.
3. Intercalary Meristem
• Found near the nodes in some plants.

Characteristics of Meristematic Cells

• Meristematic cells are highly active and play a crucial role in plant growth.
• They exhibit several distinctive characteristics:
• Dense cytoplasm.
• Thin cellulose cell walls.
• Prominent nuclei.
• Lack of vacuoles.

Discussion: Lack of Vacuoles in Meristematic Cells

• Vacuoles are membrane-bound organelles found in plant cells, often filled with water, enzymes, and other substances.
• Meristematic cells lack vacuoles for several reasons:
1. Space for Expansion: Vacuoles occupy a significant amount of space within a plant cell. In meristematic cells, where rapid cell division and growth occur, space is needed for the cytoplasm and organelles to expand as the cell enlarges.
2. Cell Wall Rigidity: The absence of vacuoles helps maintain the rigidity of the cell wall, which is essential for supporting the actively growing regions of the plant, such as the tips of stems and roots.
3. High Metabolic Activity: Meristematic cells are metabolically active and require a higher concentration of cytoplasmic materials to support rapid growth and differentiation. The absence of large vacuoles allows for more cytoplasmic space for these essential processes.
4. Differentiation: As meristematic cells differentiate into specialized cell types, they develop vacuoles, which serve various functions depending on the type of cell. Vacuoles can store water, nutrients, pigments, and waste products in mature plant cells.

In summary, the lack of vacuoles in meristematic cells is a structural adaptation that supports their high metabolic activity, rapid growth, and maintenance of cell wall integrity during the initial stages of plant development.

 

Permanent Tissue: Transition from Meristematic Cells

1. Cell Fate Determination
• Cells produced by meristematic tissue undergo a crucial transformation.
• They acquire specific roles and lose their ability to divide further.
2. Formation of Permanent Tissue
• The transition from meristematic cells to specialized, non-dividing cells results in the formation of permanent tissue.
3. Differentiation
• The process through which cells take on a permanent shape, size, and function is known as differentiation.
• Differentiation leads to the development of various types of permanent tissues in the plant.

In summary, the transition from actively dividing meristematic cells to non-dividing specialized cells marks the formation of permanent tissues, with each type of permanent tissue serving distinct functions within the plant.

 

Simple Permanent Tissues in Plants

1. Parenchyma Tissue

• Located a few cell layers beneath the epidermis.
• Composed of relatively unspecialized cells with thin cell walls.
• These cells are living and usually loosely arranged, creating large intercellular spaces.
• Functions primarily in storing food.
• In some cases, contains chlorophyll for photosynthesis, referred to as chlorenchyma.
• In aquatic plants, parenchyma contains large air cavities, known as aerenchyma, aiding in flotation.

2. Collenchyma Tissue

• Found in leaf stalks below the epidermis.
• Provides flexibility to plant parts such as tendrils and climbing stems.
• Offers mechanical support.
• Cells are living, elongated, and irregularly thickened at the corners.
• Intercellular spaces are minimal.

3. Sclerenchyma Tissue

• Imparts hardness and rigidity to plant structures.
• Commonly seen in the husk of a coconut.
• Composed of dead cells with thickened walls containing lignin.
• Walls may be so thick that there is no internal space within the cell.
• Found in stems, around vascular bundles, in leaf veins, and in the hard coverings of seeds and nuts.

4. Epidermis

• The outermost layer of cells covering the entire plant surface.
• Typically consists of a single layer of cells.
• Epidermal cells on aerial plant parts often secrete a waxy layer on their outer surface.
• This waxy layer aids in protection against water loss, mechanical injury, and fungal invasion.
• Epidermal cells form a continuous layer without intercellular spaces.
• Most epidermal cells have relatively flat shapes, with outer and side walls thicker than the inner wall.
• Small openings called stomata are present in the epidermis, enclosed by two kidney-shaped guard cells, allowing gas exchange and transpiration.

5. Root Epidermis

• Epidermal cells of roots bear long, hair-like structures that increase the absorptive surface area for water absorption.

6. Specialized Epidermis in Desert Plants

• Some desert plants have a thick waxy cutin coating on the outer surface of the epidermis, providing waterproofing.

7. Cork Tissue

• Developed in older plant tissues as a secondary meristem located in the cortex.
• Forms layers of compactly arranged dead cells without intercellular spaces.
• Contains suberin in cell walls, making it impervious to gases and water.

In summary, plants have various types of simple permanent tissues, each with specific functions and structural characteristics, contributing to their growth, support, protection, and adaptability to different environments.

 

Simple Permanent Tissues in Plants: Structure and Function

1. Parenchyma Tissue

• Structure: Located just beneath the epidermis, parenchyma tissue consists of cells with thin cell walls. These cells are relatively unspecialized, living, and loosely arranged, creating ample intercellular spaces.
• Function: Parenchyma primarily serves as a storage tissue for food and nutrients. In some cases, it contains chlorophyll and carries out photosynthesis, referred to as chlorenchyma. In aquatic plants, parenchyma forms aerenchyma, which contains large air cavities, aiding in flotation.

2. Collenchyma Tissue

• Structure: Collenchyma tissue is typically found in leaf stalks below the epidermis. Its cells are elongated and have irregularly thickened corners. The cells are living, and intercellular spaces are minimal.
• Function: Collenchyma provides flexibility to plant parts, allowing them to bend without breaking. It also offers mechanical support to the plant.

3. Sclerenchyma Tissue

• Structure: Sclerenchyma tissue imparts hardness and rigidity to plant structures. Its cells are dead and have thick walls containing lignin. In some cases, these walls are so thick that there is no internal space within the cell.
• Function: Sclerenchyma tissue provides strength to plant parts, such as stems, vascular bundles, leaf veins, and the hard coverings of seeds and nuts.

4. Epidermis

• Structure: The epidermis is the outermost layer of cells that covers the entire plant surface. It usually consists of a single layer of cells. Epidermal cells on aerial plant parts often secrete a waxy layer on their outer surface. These cells form a continuous layer without intercellular spaces, and their outer and side walls are thicker than the inner wall.
• Function: The epidermis serves a protective role, safeguarding plant parts against water loss, mechanical injury, and fungal invasion. Small openings called stomata are present in the epidermis, allowing for gas exchange and transpiration.

5. Root Epidermis

• Structure: The epidermal cells of roots bear long, hair-like structures, increasing the surface area for water absorption.
• Function: Root epidermis plays a crucial role in the absorption of water and minerals from the soil.

6. Specialized Epidermis in Desert Plants

• Structure: Some desert plants have an epidermis with a thick waxy cutin coating on its outer surface.
• Function: This specialized epidermis provides waterproofing, helping the plant conserve water in arid environments.

7. Cork Tissue

• Structure: Cork tissue develops in older plant tissues as a secondary meristem located in the cortex. It comprises layers of compactly arranged dead cells without intercellular spaces and contains suberin in cell walls.
• Function: Cork tissue makes plant parts impervious to gases and water, serving as a protective layer in woody stems and roots.

In summary, plants have several types of simple permanent tissues, each with distinct structures and functions. These tissues contribute to the plant's growth, support, protection, and adaptation to various environmental conditions.

 

Complex Permanent Tissues in Plants: Xylem and Phloem

1. Introduction

• Complex permanent tissues are composed of more than one type of cell that work together to perform a common function.
• Xylem and phloem are examples of complex tissues, and they constitute vascular bundles.
• Vascular tissue, a characteristic of complex plants, enables their survival in terrestrial environments.

2. Xylem Tissue

• Composition: Xylem consists of several cell types, including tracheids, vessels, xylem parenchyma, and xylem fibers.
• Structural Characteristics:
• Tracheids and vessels have thick walls, and many become dead cells when mature.
• Tracheids and vessels are tubular structures, allowing them to transport water and minerals vertically.
• Xylem parenchyma stores food.
• Xylem fibers primarily provide support.

3. Phloem Tissue

• Composition: Phloem is composed of five types of cells: sieve cells, sieve tubes, companion cells, phloem fibers, and phloem parenchyma.
• Structural Characteristics:
• Sieve tubes are tubular cells with perforated walls.
• Phloem transports food, primarily from leaves to other plant parts.
• Except for phloem fibers, other phloem cells are living cells.

In summary, complex permanent tissues like xylem and phloem are composed of multiple cell types that collaborate to perform essential functions in plants. Xylem is responsible for water and mineral transport, while phloem transports food materials throughout the plant. The coordination of various cell types within these complex tissues is a vital aspect of plant physiology, enabling their adaptation to terrestrial environments.

 

 

1. Name types of simple tissues.

2. Where is apical meristem found?

3. Which tissue makes up the husk of coconut?

4. What are the constituents of phloem?

1. Types of Simple Tissues:
• Parenchyma
• Collenchyma
• Sclerenchyma
• Epidermis
2. Apical Meristem Location:
• Apical meristem is typically found at the growing tips of stems and roots. It is responsible for increasing the length of the stem and the root.
3. Tissue in the Husk of Coconut:
• The husk of a coconut is primarily made up of sclerenchymatous tissue. Sclerenchyma tissue provides hardness and stiffness to plant structures and is characterized by its thick-walled, lignified cells.
4. Constituents of Phloem:
• Phloem is composed of several cell types, including:
• Sieve tubes: Tubular cells with perforated walls, responsible for transporting food materials.
• Sieve cells: Specialized cells that function in food transport.
• Companion cells: Adjacent cells that support sieve tube function.
• Phloem fibers: Fibrous cells that provide structural support.
• Phloem parenchyma: Cells responsible for storing food and providing metabolic support to other phloem elements.

These answers provide an overview of the types of simple tissues, the location of apical meristem, the tissue in the coconut husk, and the constituents of phloem tissue in plants.

Animal Tissues and Their Functions

1. Muscle Cells for Movement
• Muscle cells are specialized cells responsible for the movement of various body parts.
• Contraction and relaxation of muscle cells result in bodily movements, such as those observed during breathing.
2. Oxygen Transport via Blood
• Oxygen taken in during breathing is absorbed in the lungs and then transported to all body cells through the bloodstream.
• Cells require oxygen for various metabolic processes, as indicated by the function of mitochondria.
3. Blood's Circulatory Functions
• Blood acts as a carrier, flowing throughout the body and facilitating the transportation of various substances.
• It carries oxygen and nutrients to all cells, ensuring their proper functioning.
• Blood also collects waste products from different body parts and transports them to the liver and kidneys for disposal.
4. Types of Animal Tissues
• Based on the functions they perform, animal tissues can be categorized into different types:
• Epithelial Tissue: Tissue responsible for lining body surfaces and forming protective barriers.
• Connective Tissue: Tissue that connects and supports various body structures, including blood.
• Muscular Tissue: Tissue involved in movement and contraction, as seen in muscles.
• Nervous Tissue: Tissue responsible for transmitting nerve impulses and enabling communication within the nervous system.
5. Blood as Connective Tissue
• Blood is a type of connective tissue that plays a crucial role in transporting oxygen, nutrients, and waste products throughout the body.
• It acts as a vital connector, ensuring the proper functioning of various body cells and organs.

In summary, the human body contains different types of tissues, each with its specific functions. Muscle cells enable movement, blood transports essential substances, and there are various types of animal tissues, including epithelial, connective, muscular, and nervous tissues, each contributing to the body's overall functionality.

 

Epithelial Tissue in Animals

1. Introduction
• Epithelial tissues serve as the covering or protective tissues in the animal body.
• These tissues are found covering most organs and cavities within the body.
• Epithelium forms a barrier that separates various body systems.
2. Locations of Epithelial Tissues
• Epithelial tissue is found in various parts of the body, including:
• Skin
• Lining of the mouth
• Lining of blood vessels
• Lung alveoli
• Kidney tubules
3. Characteristics of Epithelial Tissue
• Cells in epithelial tissue are tightly packed, forming a continuous sheet.
• They have minimal cementing material between them and very few intercellular spaces.
• Epithelium plays a crucial role in regulating the exchange of materials between the body and the external environment and between different body parts.
• An extracellular fibrous basement membrane separates epithelium from the underlying tissue.
4. Types of Epithelial Tissues
• Different types of epithelia exhibit varying structures based on their unique functions:
• Simple Squamous Epithelium: Found in blood vessels and lung alveoli, it is extremely thin and flat, facilitating the transport of substances.
• Stratified Squamous Epithelium: Forms the skin and the lining of the mouth, arranged in multiple layers to provide protection.
• Ciliated Columnar Epithelium: Present in the respiratory tract, it has cilia on the cell surfaces that help move mucus to clear the airways.
• Columnar Epithelium: Found in the inner lining of the intestine, facilitating absorption and secretion.
• Cuboidal Epithelium: Lines kidney tubules and salivary gland ducts, providing mechanical support.
• Glandular Epithelium: Some epithelial tissues fold inward, forming multicellular glands specialized for secretion.

In summary, epithelial tissue serves as the body's protective covering and is found in various structures. The type and structure of epithelial tissue correlate with its function, which can include protection, absorption, secretion, and transportation of substances.

Connective Tissue in Animals

1. Introduction to Connective Tissue
• Connective tissue, like blood, earns its name because it connects various body parts.
• These tissues have loosely spaced cells embedded in an intercellular matrix with varying characteristics.
2. Blood as Connective Tissue
• Function of Blood: Blood has a fluid matrix called plasma that contains red blood corpuscles (RBCs), white blood corpuscles (WBCs), platelets, proteins, salts, and hormones.
• Role in Transport: Blood flows throughout the body, transporting gases, digested food, hormones, and waste materials to different body parts.
3. Bone as Connective Tissue
• Function of Bone: Bone serves as the body's framework, supporting and anchoring muscles and organs.
• Structural Characteristics: Bone is strong, nonflexible tissue with cells embedded in a hard matrix composed of calcium and phosphorus compounds.
4. Ligaments and Tendons
• Ligaments: These connective tissues are highly elastic and possess considerable strength. Ligaments contain minimal matrix and connect bones to bones.
• Tendons: Tendons are fibrous tissues with great strength but limited flexibility. They connect muscles to bones.
5. Cartilage as Connective Tissue
• Structural Characteristics: Cartilage contains widely spaced cells and a solid matrix composed of proteins and sugars.
• Function: Cartilage smoothes bone surfaces at joints and is present in the nose, ear, trachea, and larynx. It offers flexibility compared to bones.
6. Areolar Connective Tissue
• Locations: Areolar connective tissue is found between the skin and muscles, around blood vessels and nerves, in the bone marrow, and inside organs.
• Functions: It fills spaces inside organs, supports internal organs, and assists in tissue repair.
7. Adipose Tissue
• Location: Fat-storing adipose tissue is found beneath the skin and between internal organs.
• Cell Characteristics: Adipose tissue cells are filled with fat globules.
• Functions: This tissue stores fats and acts as an insulator.

In summary, connective tissue in animals serves various functions, including support, connection, transport, and insulation. Different types of connective tissues have unique structural characteristics that match their specific functions within the body.

 

Muscular Tissue in Animals

1. Introduction to Muscular Tissue
• Muscular tissue is composed of elongated cells known as muscle fibers.
• Its primary function is to facilitate movement in the body.
• Muscles contain contractile proteins that contract and relax, causing movement.
2. Voluntary Muscles (Skeletal Muscles)
• Characteristics: These muscles can be consciously controlled by the will.
• Function: Voluntary muscles, also known as skeletal muscles, are mostly attached to bones and are responsible for body movement.
• Microscopic Appearance: When viewed under a microscope with appropriate staining, they exhibit alternate light and dark bands or striations, hence referred to as striated muscles.
• Cell Characteristics: Skeletal muscle cells are long, cylindrical, unbranched, and multinucleate, meaning they have many nuclei.
3. Involuntary Muscles (Smooth Muscles)
• Characteristics: Involuntary muscles control movements that we cannot consciously initiate or stop.
• Functions: Smooth muscles are responsible for involuntary movements, such as the movement of food in the alimentary canal and the contraction and relaxation of blood vessels.
• Locations: They are found in various parts of the body, including the iris of the eye, ureters, and bronchi of the lungs.
• Microscopic Appearance: These muscles appear unstriated under a microscope.
• Cell Characteristics: Smooth muscle cells are long, spindle-shaped, and uninucleate, with a single nucleus.
4. Cardiac Muscles (Heart Muscles)
• Characteristics: Cardiac muscles exhibit rhythmic contraction and relaxation throughout life.
• Function: These involuntary muscles are found in the heart and are responsible for pumping blood.
• Cell Characteristics: Cardiac muscle cells are cylindrical, branched, and uninucleate.

In summary, muscular tissue in animals is diverse and includes voluntary (skeletal) muscles, involuntary (smooth) muscles, and cardiac muscles. Each type of muscle has distinct characteristics and functions, contributing to various aspects of movement and physiological processes in the body.

Nervous Tissue in Animals

1. Introduction to Nervous Tissue
• Nervous tissue is highly specialized for responding to stimuli and rapidly transmitting signals within the body.
• It constitutes the brain, spinal cord, and nerves.
2. Nerve Cells (Neurons)
• Cell Structure: Neurons, the cells of nervous tissue, consist of a cell body with a nucleus and cytoplasm. They possess long, thin, hair-like structures.
• Axon and Dendrites: Neurons typically have a single long process called the axon and many short, branched processes called dendrites.
• Length: Individual neurons can be quite long, with some reaching up to a meter in length.
• Nerves: Nerve fibers, which are bundles of many nerve cells, are held together by connective tissue, forming nerves.
3. Nerve Impulses
• Definition: The signal that travels along a nerve fiber is known as a nerve impulse.
• Function: Nerve impulses play a crucial role in muscle movement, allowing us to control our muscles voluntarily.
• Fundamental Role: The combination of nervous tissue and muscle tissue is fundamental for most animals, enabling rapid responses to stimuli.

In summary, nervous tissue is specialized for responding to stimuli and transmitting signals quickly within the body. Nervous tissue includes neurons, which have a cell body, axon, and dendrites. Nerve impulses are vital for muscle movement and are central to the ability of animals to respond rapidly to various stimuli.

 

1. Tissue Responsible for Movement in Our Body:
• The tissue responsible for movement in our body is muscular tissue.
2. Appearance of a Neuron:
• A neuron typically consists of:
• A cell body with a nucleus and cytoplasm
• A long, thin process called an axon
• Many short, branched processes called dendrites
3. Features of Cardiac Muscles:
• Cardiac muscles exhibit the following features:
• Rhythmic contraction and relaxation.
• Cylindrical and branched cells.
• Uninucleate (having a single nucleus).
4. Functions of Areolar Tissue (areolar tissue):
• Areolar connective tissue serves several functions, including:
• Filling spaces inside organs.
• Supporting internal organs.
• Assisting in tissue repair.
• Connecting skin to muscles, blood vessels, and nerves.
• Providing flexibility and cushioning.

___________________________________________________________________________

 

1. Definition of "Tissue":
• Tissue is a group or collection of similar cells that perform a specific function within an organism.
2. Types of Elements in Xylem Tissue:
• The xylem tissue consists of four types of elements:
• Tracheids
• Vessels
• Xylem parenchyma
• Xylem fibers
3. Difference Between Simple Tissues and Complex Tissues in Plants:
• Simple tissues are composed of a single type of cell that performs a similar function, whereas complex tissues consist of multiple types of cells that work together to perform specialized functions.
4. Differences Between Parenchyma, Collenchyma, and Sclerenchyma Based on Cell Wall:
• Parenchyma: Thin cell walls, living cells with large intercellular spaces.
• Collenchyma: Unevenly thickened cell walls, living cells with limited intercellular spaces.
• Sclerenchyma: Thick and lignified cell walls, often dead cells with no intercellular spaces.
5. Functions of Stomata:
• Stomata are specialized pores found in the epidermis of leaves and stems in plants.
• Their functions include:
• Regulating gas exchange (carbon dioxide uptake and oxygen release) for photosynthesis and respiration.
• Controlling water vapor and transpiration.
• Facilitating the exchange of water and minerals with the surrounding environment.
6. Diagrammatic Representation of Muscle Fibres:
• Unfortunately, I cannot draw diagrams. However, you can easily find diagrams of the three types of muscle fibers (skeletal, smooth, and cardiac) by searching online or referring to biology textbooks.
7. Specific Function of Cardiac Muscle:
• The specific function of cardiac muscle is to contract rhythmically and involuntarily to pump blood throughout the circulatory system, ensuring the circulation of oxygen and nutrients to various body tissues.
8. Differences Between Striated, Unstriated, and Cardiac Muscles:
• Striated Muscles (Skeletal Muscles): Cylindrical, multinucleate, voluntary, and striated appearance under a microscope. Attached to bones for body movement.
• Unstriated Muscles (Smooth Muscles): Spindle-shaped, uninucleate, involuntary, and non-striated appearance. Found in various organs for involuntary movements.
• Cardiac Muscles: Branched, uninucleate, involuntary, and striated appearance. Present in the heart for continuous pumping of blood.
9. Labelled Diagram of a Neuron:
• I cannot create diagrams, but you can easily find labelled neuron diagrams in biology textbooks or online resources.
10. Naming the Following: (a) Tissue that forms the inner lining of our mouth: Epithelial tissue (b) Tissue that connects muscle to bone in humans: Tendon (c) Tissue that transports food in plants: Phloem tissue (d) Tissue that stores fat in our body: Adipose tissue (e) Connective tissue with a fluid matrix: Blood (or blood tissue) (f) Tissue present in the brain: Nervous tissue
11. Types of Tissues in the Given Examples:
• Skin: Epithelial tissue
• Bark of Tree: Cork (Protective tissue)
• Bone: Connective tissue (Osseous tissue)
• Lining of Kidney Tubule: Epithelial tissue
• Vascular Bundle: Contains xylem and phloem tissues

 

Top of Form