There are certain parts in all green plants which are essential and play a critical role in different life processes. Answer: During inhalation, diaphragm moves down and ribs move up and outwards this movement increases space in our chest cavity and air rushes into the lungs. Study the diagram … the two functions of stomata are: exchange of gases. Image from NCERT. Diagrammatically show the difference between the three types of muscle fibres. The outer walls of guard cells (away from the stomatal pore) are thin and the inner walls (towards the … It helps in transpiration and removal of excess water in the form of water vapour. Write chemical equation for photosynthesis. The stomata are surrounded by a pair of subsidiary cells that are perpendicular to the guard cell. Most of these are found on the lower side of the leaves. (iv) Define the phenomenon. A.DIAGRAM OF OPEN AND CLOSED STOMATAL POREB. Summer 3. Answered Draw a labelled diagram of the leaf peel showing stomata. C.when water flows into the guard cells it swells causing the the stomatal pore to open and when water oozes out of the guard cell it shrinks causing the stomatal pore to close. It is the only known method by which oxygen is added to the atmosphere to compensate for oxygen being used in the respiration of organisms and burning of organic fuels. We can conclude that dicots have more stomata on the lower surface, whereas monocots have stomata distributed equally on both the surfaces of leaves. Also, they release excess water released in the process of respiration during the night along with carbon dioxide. The stomatal opening has specialized guard cells surrounding them. The stomata can open and close to: I thank my teacher, Mrs. S***** M*****, for the meticulous examination. (b) What are the basic materials used during photosynthesis. The stomata may occur on any part of a plant except the roots. Join now. Answer: NCERT Solutions of Class 7 Science Chapter 11 – Transportation in Animals and Plants – ended (a) Draw the diagram of cross section of a leaf and label the following parts (i) chloroplast (ii) cuticle (b) A gas is released during photosynthesis. in the diagram of human body the parts like head neck lim bs are labelled Draw a neat and labeled diagram of computer Also explain the functioning of each Unit?Labeled Diagram Showing Plant Stoma Open Stock Vector (Royalty Free) - ShutterstockImage Gallery stomata labeled. Each stoma possesses two guard cells, which are shaped like dumbbells. Ans. 1. Answer: Question 7. Definition of Stomata 2. a well label diagram of stomata. Need assistance? They open during the day and close during night. All over the plant body epidermis is present. Lenticels 4. Xylem. (a) Diagram of stomata : Functions of stomata: (i) Exchange of gases (ii) Transpiration (b) The conditions in which photosynthesis takes place are: carbon dioxide, water, chlorophyll and sunlight. Contact us on below numbers. Question 7: Study the diagram given below and answer the questions that follows: (i) Name the process being studied in the above experiment. What is the role of epidermis in plants? Also, refer to Distribution of Stomata in the Lower and Upper Surfaces of the Leaves. Q56. Stomata are enclosed by two kidney-shaped cells called guard cells. Ans. Image from NCERT. The average number of stomata is about 300 per square mm of the leaf surface. Ans. Draw labelled diagram of the structure of stomata as seen under the microscope. BNAT; Classes. Give two functions of stomata. Draw a labeled diagram of the stomatal apparatus and label the following in it: Stoma, Guard cells, Chloroplast, Epidermal cells and Cell wall. control gas exchange in the leaf. 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