Parenchyma tissue is of further two types – Aerenchyma and Chlorenchyma. In many species, root aerenchyma is a component of a pathway of gas conducting tissue extending to the shoot. Class 9 Science Chapter 6 Extra Questions and Answers Tissues. Ans. Chapter-wise NCERT Solutions For Class 9 Science Chapter 6 Tissues (Biology) solved by Expert Teachers as per NCERT (CBSE) Book guidelines. chlorenchyma. 69. Aquatic plants have the air cavities in parenchyma. Page No. Class 9 Science Chapter 6 Extra Questions Answers are important for the preparation of school tests as well as final exams. It also serves the functions of storage of food reserves, absorption, buoyancy, secretion etc. Q1. This topic provides a basic framework for the next level, including the anatomy and physiology of the human body. Define tissue. Gas transport in the pathway may be simple diffusion or may be due to pressure flow (see Raven, 1996 and Jackson & Armstrong, 1999 for reviews). →Function: • Aerenchyma provides buoyancy and allows the circulation of gases. • Transportation of Oxygen. Parenchyma (Structure, Classification and Function of Parenchyma) What is simple tissue? Q3. Their main function is to initiate growth in new cells of seedlings, at the tip of roots, and shoots. Which tissue makes up the husk of coconut? What is the function of phloem? state its functions. ... aerenchyma. ... 1.1 Name the muscular tissue that functions throughout life without fatigue. Simple permanent tissues are Parenchyma, Chlorenchyma, Aerenchyma, Collenchyma and Sclerenchyma, on the other … Functions: Parenchyma may store water in many succulent and xerophytic plants. Aerenchyma →Structure: • Aerenchyma is an parenchymatous spongy tissue that forms spaces, gaps and air channels in the stem, roots and leaves. Q2. Solution: Apical meristem is present at the growing tips of stems and roots. Where is apical meristem found? Parenchyma (2). When exposed to light, parenchyma cells may develop chloroplasts and are known as Chlorenchyma. Class-9 » Science. Aerenchyma has large cavities to provide buoyancy to the parts of aquatic plants. 1.2 In desert plants, ... Other cells have large air cavities called aerenchyma which provide buoyancy to the hydrophytic plants. Share with your friends. Question 9. Ø Three types of simple tissue system in plants: (1). what is aerenchyma ? Question 4. Formation of aerenchyma decreases oxygen demand effected by the removal of some cells of the cortex, but its importance extends … NCERT Solutions Class 9 Science Tissues . It is characterized by the presence of lignin which provides mechanical strength to it. In the chapter tissues class 9 notes, majorly, we will discuss two types of permanent tissues, i.e, Simple and Complex. Cortical cells in herbaceous stems, young woody stems, and stems of succulents (cacti and other fleshy plants) contain chloroplasts and can therefore convert carbon dioxide and water to simple… CBSE Class 9 Science Chapter 5 Tissues Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. Sclerenchyma What are the […] Continue reading … Parenchyma cells that have large air cavities are known as aerenchyma. →Location: • It is present in the root, stem and leaves of mostly aquatic plants. Ø The tissue (a group of cells with particular function) composed of single type of cells. Tissues. Collenchyma (3). Other articles where Aerenchyma is discussed: cortex: …a type of tissue called aerenchyma, which contains air spaces produced by separation, tearing, or dissolution of the cortex cell walls. Parenchyma possesses intercellular air spaces and is named as Aerenchyma. 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