<div style='margin-bottom: 20px;'> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What is guttation and under what conditions does it occur?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Guttation is the exudation of water droplets from the margins of leaves, occurring in warm humid conditions when transpiration is hampered.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">Which type of transpiration is controlled by the plant through the opening and closing of stomata?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Stomatal transpiration is controlled by the plant.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What external factor has the most influence on the rate of transpiration during the day?</h2> <p style="font-weight: normal; font-size: 1.2rem;">The intensity of sunlight influences the rate of transpiration the most during the day.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">How do desert plants adapt to reduce transpiration?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Desert plants have thicker cuticles to reduce transpiration.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">what is transpiration? </h2> <p style="font-weight: normal; font-size: 1.2rem;">transpiration is the process of loss of water in the form of water vapour from the leaves and other airel parts of the plants. </p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">what is the cuticle? and state the function of cuticular transpiration</h2> <p style="font-weight: normal; font-size: 1.2rem;"></p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">define exudation </h2> <p style="font-weight: normal; font-size: 1.2rem;">) Exudation — The process by which plants lose water or other fluids along with dissolved substances directly in liquid form and not as water vapour is called exudation.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">define potometer</h2> <p style="font-weight: normal; font-size: 1.2rem;">Potometer — Potometer is a device that measures the rate of water intake by a plant and this water intake is almost equal to the water lost through transpiration.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">define wilting</h2> <p style="font-weight: normal; font-size: 1.2rem;">Wilting — The drying out, drooping and withering of the leaves of a plant due to inadequate water supply, excessive transpiration, or vascular disease.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">define hydathodes</h2> <p style="font-weight: normal; font-size: 1.2rem;">Hydathodes — Special pore-bearing structures present on the margins of the leaf to allow exudation are called hydathodes</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">define cuticle</h2> <p style="font-weight: normal; font-size: 1.2rem;">Cuticle — Cuticle is a waxy layer secreted by the epidermis on the two surfaces of the leaf which prevents evaporation of water from the leaf surfaces.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">difference between stomata and lenticels</h2> <p style="font-weight: normal; font-size: 1.2rem;">Stomata Lenticels They are minute openings in the epidermal layer of leaves. They are minute openings on the surface of old woody stems. Maximum transpiration occurs through stomata. Lesser transpiration occurs through lenticels.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What mechanism do plants primarily use to prevent water loss through their leaves?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Plants primarily use a waxy layer called the cuticle to prevent water loss through their leaves.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What is the role of lenticels in plants?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Lenticels allow diffusion of gases for respiration and contribute to transpiration by letting water evaporate from cell surfaces facing them.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What experiment demonstrates the unequal rate of transpiration in dorsiventral leaves?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Using cobalt chloride paper to show the difference in transpiration rates between the upper and lower surfaces of a leaf demonstrates the unequal rate of transpiration.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">what is lenticelular transpiration?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Lenticular Transpiration: Lenticels are special openings that develop on the barks of older stems in place of stomata. These allow diffusion of gases for respiration as well as for photosynthesis. Lenticel never close. They remain open at all times. Water from the cell surfaces directly facing the lenticels evaporates and contributes to transpiration. The amount of transpiration from lenticels is certainly more than cuticular transpiration , but less than stomatal transpiration</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">how smis the loss of transpiration ?</h2> <p style="font-weight: normal; font-size: 1.2rem;">water is absorbed by roots- xylem vessels- spongy mesophil-saturates the air in intercellular space-substomatal space-stomata </p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">A group of students is conducting a field study in a botanical garden to investigate how environmental factors affect plant transpiration. They decide to focus on a variety of plants with dorsiventral leaves. They have cobalt chloride paper, a stopwatch, and a light source available. Design an experiment for them that would allow the observation of the unequal rates of transpiration on the upper and lower surfaces of the leaves.</h2> <p style="font-weight: normal; font-size: 1.2rem;">The students can attach cobalt chloride paper to both the upper and lower surfaces of a dorsiventral leaf. They should ensure that environmental conditions such as light intensity, temperature, and humidity are consistent for all plants being tested. After a set period, they can observe the color change in the cobalt chloride paper, which turns from blue to pink as it absorbs moisture. By comparing the color intensity of the cobalt chloride paper from the upper and lower surfaces of the leaves, students can deduce the difference in transpiration rates. This experiment demonstrates the unequal rate of transpiration between the two surfaces.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">How does wind velocity affect transpiration?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Transpiration increases with the velocity of wind as it removes water vapour faster, preventing saturation around the leaf.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What role does the stomatal mechanism play in plant transpiration?</h2> <p style="font-weight: normal; font-size: 1.2rem;">The stomatal mechanism regulates transpiration by adjusting the opening and closing of stomata, which is influenced by the water and solute levels in the guard cells.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">Why is measuring transpiration important in plant physiology studies?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Measuring transpiration helps understand water uptake and loss, the efficiency of water use, and the plant's adaptation to its environment.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">what is stomatal transpiration?</h2> <p style="font-weight: normal; font-size: 1.2rem;"></p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">Name the following: (a) Openings on the stem through which transpiration occurs. (b) The process by which the intact plant loses water in the form of droplets. (c) An instrument used to find the rate of transpiration. (d) A plant in which the stomata are sunken. (e) The apparatus to record the rate of transpiration in a cut shoot. (f) Any two parts of a leaf which allow transpiration. (g) The structure in a leaf that allows guttation. (h) Loss of water as droplets from the margins of certain leaves</h2> <p style="font-weight: normal; font-size: 1.2rem;">(a) Lenticels. (b) Guttation. (c) Potometer. (d) Nerium. (e) Ganong's potometer. (f) Stomata and Cuticle. (g) Hydathodes. (h) Guttation.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">How does the process of transpiration primarily occur in plants?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Transpiration primarily occurs through the stomata of the leaves.</p> </div> <div style="margin-bottom: 10px; background-color: #f2f2f2; border-radius: 1rem; padding: 10px 20px;"> <h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What is the primary purpose of transpiration in plants?</h2> <p style="font-weight: normal; font-size: 1.2rem;">Transpiration serves two main purposes: creating suction force in the stem for water and nutrient absorption from the roots, and cooling the plant in hot weather.</p> </div> </div>