Question

1.  Give four differences between bone and cartilage.

2.  Give the functions of cartilage.

3.  Give difference between xylem and pholem.

4.  What is stomata?

5.  Why does epidermal tissue have no intercellular space?

6.  Name and give the function of each cell of xylem.

7.  Why is blood called connective tissue?

8.  State the difference between simple tissues of plants.

9.  Explain the structure, function and location of nervous tissue.

10.  Describe ‘epidermis’ in plants.

​

Answer 1

Answer:

1. Bones Cartilage

Bones are the hard, inelastic and a tough organ that forms part of the vertebral skeleton.

Cartilage is a soft, elastic and flexible connective tissue that protects the bone from rubbing against each other.

Bones are of two types: compact or spongy.

Cartilage is of three types: Hyaline cartilage, fibrocartilage, and elastic cartilage.

Bone cells are known as osteocytes.

Cartilage cells are known as chondrocytes.

Presence of blood vessels. Absence of blood vessels (nutrients are obtained through diffusion)

The matrix is both organic and inorganic. The matrix is completely organic.

Has deposits of calcium salts. May or may not have deposition of calcium salts.

2.

Cartilage

It is a thin, fibrous, flexible connective tissue, which is mainly found in the external ear, larynx, respiratory tract, and the articulating surface of the joints. These cartilages lack blood vessels; therefore, the growth and development of these tissues are slower compared to that of other tissues. Altogether, there are three different types of cartilages, namely:

• Hyaline cartilage: It serves as a shock absorber and allows the smooth movement of the bones at joints. They are mainly found in the nose, respiratory tract, and joints
• Fibrocartilage is found in the knee, and it is tough and inflexible.
• Elastic cartilage is found in-ear, epiglottis, and larynx. It is the most flexible cartilage.

3.

Xylem Phloem

Definition

Xylem tissues are the tubular-shaped structure, with the absence of cross walls.

This tissue resembles the shape of a star.

Phloem tissues are tubular-shaped, elongated, structures with the presence of walls with thin sieve tubes.

Location

It is located in the centre of the vascular bundle

. It is located on the outer side of the vascular bundle.

Fibres

Xylem fibres are smaller.

Phloem fibres are larger.

4.

botany, a stoma, also called a stomate is a pore, found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange. The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the stomatal opening.

5.

As it has to prevent water loss, as well as inhibit invasion of pathogenic microbes. The epidermal tissues serve as the barrier between the external environment and the body. Hence, epidermal tissues have no intercellular spaces.

6.

The main function of xylem is to transport water, and some soluble nutrients including minerals and inorganic ions, upwards from the roots to the rest of the plant. Xylem cells form long tubes that transport materials, and the mixture of water and nutrients that flows through the xylem cells is called xylem sap.

7.

Blood is considered a connective tissue for two basic reasons: (1) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes

8.

Difference Between Simple And Complex Tissue.

Simple Tissues Complex Tissues

Nature of the Tissue

Homogenous Heterogenous

Example

Parenchyma, Collenchyma, Sclerenchyma Xylem, phloem

9.

Nervous tissue is the term for groups of organized cells in the nervous system, which is the organ system that controls the body's movements, sends and carries signals to and from the different parts of the body, and has a role in controlling bodily functions such as digestion.

10.

Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.

hope it helped you friend if it helps you mark it as brainliest

Happy learning

Answer 2

Answer:

1. Cartilage cells are known as chondrocytes. Bones are hard as a result of the deposition of phosphates and carbonates of calcium in the matrix. Cartilage is soft except for calcified cartilage. The matrix which forms the bones consist of a protein called ossein and can be both organic or inorganic
2. Cartilage is a flexible connective tissue that keeps joint motion fluid by coating the surfaces of the bones in our joints and by cushioning bones against impact. It is not as rigid as bone, but is stiffer and less flexible than muscle tissue.Aug
3. Xylem and phloem facilitate the transportation of water, minerals and food throughout the plant. Xylem carries water and minerals from the roots to the leaves. Whereas, phloem carries the food prepared by the leaves to different parts of the plant.
4. In botany, a stoma, also called a stomate is a pore, found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange. The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the stomatal opening
5. As it has to prevent water loss, as well as inhibit invasion of pathogenic microbes. The epidermal tissues serve as the barrier between the external environment and the body. Hence, epidermal tissues have no intercellular spaces.
6. The main function of xylem is to transport water, and some soluble nutrients including minerals and inorganic ions, upwards from the roots to the rest of the plant. Xylem cells form long tubes that transport materials, and the mixture of water and nutrients that flows through the xylem cells is called xylem sap.
7. Blood is considered a connective tissue because it has a matrix. The living cell types are red blood cells, also called erythrocytes, and white blood cells, also called leukocytes. ... The cell found in greatest abundance in blood is the erythrocyte, responsible for transporting oxygen to body tissues
8. Simple plant tissue are made up of one type of cells and they work together to perform a common function ex sclerenchyma, parencyma tissue. Where as complex tissues areade up of more than one type of cells ex, xylem and phloem. Xylem is water conducting whereas phloem is food conducting.
9. Nervous tissue is made up of different types of nerve cells, all of which have an axon. An axon is the long stem-like part of the cell that sends action potential signals to the next cell. ... Functions of the nervous system are sensory input, integration, control of muscles and glands, homeostasis, and mental activity.
10. Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.