Given the task definition and input, reply with output. Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

In botany, a stoma (plural stomata), also called a stomate (plural stomates)[1] (from Greek , mouth[2]), is a pore, found in the epidermis of leaves, stems, and other organs, that facilitates gas exchange. Does Leaf Surface Area Affect the Rate of Transpiration in a Plant? Aim: The aim of my investigation is to find out if the leaf surface area affects the rate of transpiration in a plant. Variables: The variables of this experiment are;- * The leaf surface area * Temperature of the surrounding air * The speed and amount of wind * The amount of light Environmental Factors: Temperature of air The temperature of the air affects the rate of transpiration. Where S=the number of stomata, E=total number of epidermal cells in a unit area of the leaf. Oats contain 54,000 per one square inch, but cucumber contains 428,000 per square inch. A study on stomatal index of leaves at different positions and different areas in the same leaf and plant provides very interesting information about the structure, frequency, distribution and ultimately their function. Water is transpired through stomata, but carbon dioxide also must pass through stomata into a leaf for. photosynthesis to occur. There is evidence that the level of carbon dioxide in the atmosphere has not. always been the same over the history of life on Earth. How to Calculate Leaf Surface Area. The rate of transpiration is measured as the amount of water lost/ square meter/ minute. Because water evaporates through the many stomata on the leaf surface, the rate of transpiration is directly related to the surface area. To arrive at the rate of transpiration, therefore, you must calculate the leaf surface area of each plant: Because most stomata are found in the lower epidermis, you will determine that surface area. 1 Lay the leaves to be measured on a 1-cm grid and trace their outlines. 2 Count the number of square centimeters. To investigate the relationship among leaf surface area, number of stomata, and the rate of transpiration learning objective 2: To design and conduct an experiment to explore other factors, including different environmental variables, on the rate of transpiration Perhaps there are the same number of stomata on a small leaf as on a large leaf and the space between the stomata increases as the leaf grows. Perhaps larger leaves have more stomata and more stomata are formed in the spaces as a leaf gets bigger. Each of these hypotheses could lead you to a different prediction of the rate of transpiration per cm2 in large compared with small leaves. We would be interested to know how your experiments go. This is an adaptation to check excessive transpiration in these plants. Number of Stomata (Stomatal Frequency): The number of stomata in a definite area of leaf varies from plant to plant. Xerophytes possess larger number of stomata than mesophytes. Number of stomata/sq cm. is 1000 60,000 in different plant species. The number of stomta per unit area of leaf is called Stomatal Frequency. Stomata frequency of trees and shrubs is higher than herbs. Stomata nearly occupy one to two percent of total leaf area when fully open. Is there any relationship between the number of stomata and the environment in which the plant species evolved? Are leaf surface area and the number of stomata related to the rate of transpiration? What might happen to the rate of transpiration if the number of leaves or the size of leaves is reduced? Do all parts of a plant transpire? Transpiration is a physiological phenomenon in which water is lost from certain surfaces of the plant body in the form of water vapors. This process is essential for the upward movement of water and mineral nutrients. Query: how does the number of stomata in a leaf relate to the rate of transpiration
The rate of transpiration is measured as the amount of water lost/ square meter/ minute. Because water evaporates through the many stomata on the leaf surface, the rate of transpiration is directly related to the surface area.