Stomata are tiny pores or opening on the surface of a leaf. Q No 5: What are the functions of the stomata? Those tissues which transport water, minerals and food to different parts of a plant, are called vascular tissues. Stomata: Some minute pores which are usually, found in leaf for the exchange of gas and transpiration are known as stomata (singular stoma). Stomata are found on the leaves of plants. (ii) It allows gaseous exchange between atmosphere and tissues of plants. The main functions of stomata includes (i) Helps in transpiration and photosynthesis. (b) Evaporation of water from the leaf surface occurs through stomata. The arrangement of cells in a tissue depends on the function to be performed by the tissue. Animals also have stomata. Definition of Stomata 2. 3) It helps in ascent of sap {This point is not for class 7} 4) It helps in transpiration ..{This point is not for class 7… The two main functions of stomata are to allow for the uptake of carbon dioxide and to limit the loss of water due to evaporation. Ans: Functions of the stomata: The exchange of gases (CO 2 and O 2) with the atmosphere. Functions of stomata Top function of Stomata. Stomata are open during the day because this is when photosynthesis typically occurs. Functions of stomata: (a) Stomata help in the exchange of gases. What are stomata? Functions of stomata-Transpiration(loss of water in the form of water vapours) and; exchange of gases (carbon dioxide and oxygen) are the main functions of stomata. Transport in Plants Tissue. It's functions are :- 1) It helps in the gaseous exchange . The animal stoma is an opening that connects the internal portion of an animal body out to meet the external portion. Science Class 7- Chapter 11- Transportation in Animals and Plants- NCERT Exercise Solution (Question-Answer) ... Give two function of stomata. What is the Function of Stomata? (ii) Exchange of gases (oxygen and carbon dioxide) also takes place through stomata. Each stoma remains surrounded by two kidneys or bean shaped epidermal cells the guard cells. Functions: (i) It helps in the exchange of gases. ; The loss of excess water in the form of water vapour. In many plants, stomata remain open during the day and closed at night. ... NCERT Solutions for Class 7 Science. Functions of stomata: (i) Evaporation of water in plants in the form of vapour takes place through stomata during transpiration. Stomata are tiny pores present on the surface of a leaf. The primary stomata function is to take in carbon dioxide and release oxygen, this is done with the assistance of guard cells which voluntarily open and close the pore for the exchange of gases; the process involving gas and water exchange is called transpiration. The stomata may occur on any part of a plant except the roots. * 80 to 90 percent of transpiration occurs through the stomata. This process is known as transpiration. 2) It helps in temperature regulation . Types of Stomata 3. Definition of Stomata: The stomata are minute pores which occur in the epidermis of the plants. Animal Stoma. A tissue is a group of similar cells which work together to perform a particular function. Cyclocytic - Here, a minimum of four subsidiary cells surround the guard cell. Definition :-Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Answer: The numerous pores under the surface of leaf are called stomata. 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