Epidermis and cork are the plant’s exterior protecting tissues. The epidermis is a protoderm-derived layer of cells that covers a plant’s stem, root, leaf, flower, fruit, and seed components.
Which are the two external protective tissues of the plant?
So the correct answer is ‘Epidermis and Cork’
Which are the protective tissues in plants?
The protective tissues in plants consist of epidermis and cork (phellem).
Which are the external protective tissues of the plant Mcq?
Pericycle and cork. Hint: The protective tissues, such as leaves, stems and roots, are typically found in the outermost layer of the plant body and provide protection to the plant body.
Is cortex external protective tissue of a plant?
Thus, the two types of external protective tissues are cork and epidermis. The correct option is (D) Cork and epidermis. Note:- Cortex is a layer of cells present below the epidermis.
What are the types of protective tissue?
There are two kinds of protective tissues: the epidermis and the suber or cork. This chapter is devoted to the study of epidermis. The cytological structure of epidermal cells is quite variable, but this fact does not alter the histological and histochemical uniformity of the epidermal tissue.
What is a protective tissue?
The epidermis (outer most layer) is the first layer of the plant body that acts as the first line of defense against various types of harmful objects. It protects the other parts of the body from injuries, bacterial attacks etc. Therefore epidermis is known as a protective tissue.
Is stomata a protective tissue?
1. Stomata is enclosed by two kidney-shaped guarding cells that are necessary for gaseous exchange in the leaf.
Which of the following is a protective tissue * parenchyma cork collenchyma Chlorenchyma?
Explanation: A protective tissue is present in the outermost layer of the body such as leaves , stem, and roots.
Which tissue is not involved in mechanical protection Mcq?
Plant Tissues MCQ Question 11 Detailed Solution
The correct answer is Meristem.
What is the other name of cork cambium?
Synonyms for cork cambium are bark cambium, pericambium and phellogen. Phellogen is defined as the meristematic cell layer responsible for the development of the periderm.
What type of cell is a cork cell?
Mature cork cells are plant cells that form the protective water-resistant tissue in the outer covering of stems or trunks. Cork cells are genetically programmed not to divide, but instead to remain as they are, and are considered dead cells.
Why is the epidermis called as a protective covering of plants?
epidermis is called protective tissue because it forms the outermost covering of a plant whic protects the plants from different harmful causes.
What are the two main plant tissues?
The two basic types of plant tissues are: Meristematic tissue. Permanent tissue.
What are 4 types of tissues and their functions?
Overview. There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue. Connective tissue supports other tissues and binds them together (bone, blood, and lymph tissues). Epithelial tissue provides a covering (skin, the linings of the various passages inside the body).
What are the 3 types of plant tissue systems?
tissues are dermal, vascular, and ground tissues. Primary dermal tissues, called epidermis, make up the outer layer of all plant organs (e.g., stems, roots, leaves, flowers).
How many types of tissues are there in plants?
Apical meristem gets differentiated into three types of plant tissues, they are dermal tissues, ground tissues and vascular tissue.
What is parenchyma tissue in plants?
Parenchyma is a type of simple permanent tissue that makes a major part of ground tissues in plants, where other tissues like vascular tissues are embedded. They are non-vascular and composed of simple, living and undifferentiated cells, which are modified to perform various functions.
What are the 4 types of parenchyma?
Functionally, parenchymal cells in plants can be categorized into the following types:
- Chlorenchyma. Chlorenchyma is present in the mesophyll part of the leaves.
- Aerenchyma.
- Prosenchyma.
- Medullary parenchyma.
- Armed parenchyma.
Which tissue is known as mechanical tissue?
The tissue which provides support and mechanical strength to a plant or a growing organ in a plant is known as a mechanical tissue. Both the ground tissues- collenchyma (living) and sclerenchyma (dead) provide maximum mechanical strength to a plant.
Which of the following is connective tissue class 9 Mcq?
(c) Apical and intercalary meristems are permanent tissues. (d) Meristematic tissues, in its early stage, lack vacuoles. Answer: (c) Apical and intercalary meristems are permanent tissues.
Tissues Class 9 MCQs Questions with Answers.
| Column A | Column B |
|---|---|
| (g) Fluid connective tissue | (vii) Stratified squamous epithelium |
What is the secondary xylem?
In woody plants secondary xylem comprises the bulk of the tissue in the stems and roots. It is the most important supporting tissue in arborescent dicotyledons and most gymnosperms, and the major tissue for the transport of water and essential minerals in woody plants.
What is the another name of cork?
Cork tissue is also known as phellem.
What is the common name of wood?
Wood is also called as secondary xylem.
What is the other name of secondary cortex?
(D) Cork cambium, cork and secondary cortex are collectively called phelloderm.
Is water made of cells?
A molecule of pure water is composed of two hydrogen atoms bonded to an oxygen atom. Billions of water molecules are present in a single drop of water. Water is not made up of cells, but cells are composed and made up of water.
What is Lenticels function?
A lenticel is a porous tissue made up of vast intercellular gaps between cells. On stems and roots, lenticels appear as elevated circular, oval, or elongated patches. Lenticels allow gases to pass between the atmosphere and the organs’ interior tissues.
What are the 4 main types of connective tissues?
The extracellular matrix between the cells usually includes fibers of one or more types embedded in an amorphous ground substance. Connective tissues are classified into four classes: BLOOD, BONE, CARTILAGE, CONNECTIVE TISSUE PROPER.
What are the epithelial tissue?
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
Which of the following is not a function of protective tissue in plants?
The epidermis of the leaf and stem of a plant is covered with the pores called stomata which regulates the exchange of gases and water vapors between the outside air and the interior of the leaf. So, the option (C), Conduction of water is not a function of the epidermis.
What are the 3 tissue types of plants and their functions?
Dermal tissue covers and protects the plant, and vascular tissue transports water, minerals, and sugars to different parts of the plant. Ground tissue serves as a site for photosynthesis, provides a supporting matrix for the vascular tissue, and helps to store water and sugars.
What is primary tissue in plants?
Solution. ∙ Primary tissue are the plant tissue which are developed during the primary growth stage of the plants. These primary tissues are are produced from the ground Meristem tissues. ∙ Primary tissues generally includes the epidermis, vascular tissues and the ground tissues.
What type of tissue is bone?
Bone is made up of compact tissue (the hard, outer layer) and cancellous tissue (the spongy, inner layer that contains red marrow).
Is Meristematic a tissue?
The meristem is a type of tissue found in plants. It consists of undifferentiated cells (meristematic cells) capable of cell division. Cells in the meristem can develop into all the other tissues and organs that occur in plants.
Where are the protective tissue found in plant body?
Protective tissues are usually present in the outermost layer of the plant body such as leaves, stem and roots and offer protection to the plant body.
How many types of protective tissue are there?
There are two kinds of protective tissues: the epidermis and the suber or cork. This chapter is devoted to the study of epidermis. The cytological structure of epidermal cells is quite variable, but this fact does not alter the histological and histochemical uniformity of the epidermal tissue.
What are collenchyma parenchyma and sclerenchyma in plants?
Parenchyma – They are living cells and walled, soft in nature due to the presence of thin-walled cells.
The difference between the three simple tissues are tabulated below.
| Parenchyma | Collenchyma | Sclerenchyma |
|---|---|---|
| It consists of thin-walled living cells. | It consists of thin-walled living cells. | It consists of dead cells. |
What is parenchyma and collenchyma?
Parenchyma is one of the three main types of ground, or fundamental, tissue in plants, together with sclerenchyma (dead support tissues with thick walls) and collenchyma (living support tissues with irregular walls).
What kind of tissue is collenchyma?
Collenchyma is a cellular tissue that, along with parenchyma, composes the bulk of plant tissues. Like parenchyma, collenchyma cells are living cells. They have cellulose cell walls and are filled with water – which helps the plants to keep their shape.
What is stroma made of?
The stroma is mostly made up of connective tissue, blood vessels, lymphatic vessels, and nerves. It provides nutrients to the tissue or organ and removes waste and extra fluid. The stroma may also be involved in the body’s immune response and in the growth and spread of cancer cells.
Who is the father of the cell?
The legacy of a founding father of modern cell biology: George Emil Palade (1912-2008)
Who defined cell?
1665: Robert Hooke discovered cells in cork, then in living plant tissue using an early compound microscope. He coined the term cell (from Latin cellula, meaning “small room”) in his book Micrographia (1665).