In plants and animals groups of cells called tissues carry out specific functions. What are Tissues? tissues 1. 1. Complex tissues consist of parenchyma and sclerenchyma cells. 2. State its function. Permanent tissues are derived from meristematic tissue once they lose the ability to divide. For example, groups of bone cells form bone tissues and muscle cells form muscle tissue. Plants and animals are made up of many different kinds of tissues. They are generally found below epidermis of dicot stem and petiole. Home » Class 9 » Tissues » Permanent tissue. Question 1 Write down the functions of Sclerenchyma? 1) Tissues :- Tissue is a group of cells having similar structure and function. SCLERENCHYMA. The sclerenchymatous cells do not have such thickenings. The collenchyma cells have thickening of cellulose and pectin at the corner of its cells. There are four types of collenchyma cells: tangential, annular, lacunar, and angular. Complex tissues are made of more than one type of cells that work together as a unit. A group of cells having common origin, similar structure and performing a definite function is called a tissue. Collenchyma cells are elongated cells with thickened cell walls that provide structure and support for plants. Get CBSE Class 9 Chapter 6 Tissues. 2. Mention the most abundant muscular tissue found in our body. The cells are dead. The cells of collenchyma are living and have the cytoplasm and the nucleus. ... Collenchyma You must have seen that some plant parts can bend without breaking. Answer. Collenchyma Sclerenchyma 1. CBSE Class 9 Science Chapter 5 Tissues Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. Chapter-wise NCERT Solutions For Class 9 Science Chapter 6 Tissues (Biology) solved by Expert Teachers as per NCERT (CBSE) Book guidelines. Common examples are xylem and phloem. Aerenchyma: A spongy or soft plant tissue with large air spaces found between the cells of the stems and leaves of many aquatic plants, which allows exchange of gases between the shoot and the root Chlorenchyma: In some cases the parenchyma cells contain chloroplasts and are called as chlorenchyma.These cells are meant for photosynthesis. Parenchyma, collenchyma and sclerenchyma are three types of simple tissues. They do not have the cytoplasm and the nucleus. Permanent tissue. Meristematic tissue is the dividing tissue present in the growing regions of the plant. NCERT Exemplar solution for class 9 science Chapter 6 Tissues is a premier study material that will help the students in understanding the concepts of the chapter “Tissue”. The “tissue” is very crucial in order to understand Biology topics in Class 10 and in higher secondary classes. They are classified as simple and complex tissues. The tissues are dead which makes the plant hard and stiff (eg. 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