Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Aim: To prove that oxygen is evolved during photosynthesis.
Apparatus: Beaker, funnel, test tube, water, Hydrilla plants.Procedure: Take a few pieces of Hydrilla plant. Keep a wide mouthed funnel into a beaker with water. Place the Hydrilla pieces inside the funnel. Carefully invert a test tube filled with water over the narrow end of the funnel. Keep the entire apparatus in sunlight for 2 to 3 hours.Observation: After some time you will observe small gas bubbles coming out of the leaves of Hydrilla. These bubbles collect at the end of the test tube. Collect more gas and then take out of the test tube by closing its mouth with the thumb. Test the gas by introducing glowing splinter. The splinter glows and burns more vigorously.Conclusion: From the above experiment, it is clear that oxygen is evolved during photosynthesis.Precautions:1. See that the twigs of Hydrilla plant are inside the funnel.2. while you are testing for oxygen, see that outside air does not enter test tube.3. For the experiment use only glass funnel and beaker.
Q. How is the excretory system of molluscs characterized? Molluscs have one or two pair of spongelike nephridia, similar to kidneys
Sickling occurs in deoxyhemoglobin S, but not in oxyhemoglobin S. Oxyhemoglobin has a small hydrophobic \"pocket\" in a ß chain region located in the interior of the protein. In de
Q. Major objectives of diarrhoea? The major objectives in the management of diarrhoea include: 1. Fluid and electrolyte replacement 2. Removal of cause (especially if inf
Q. What are the major orders of placental mammals? What are a few representative species and distinguishing features of each of those orders? The orders into which placental ma
Which are the subproducts of the photochemical stage that are essential for the chemical stage of photosynthesis? The chemical stage of photosynthesis depends on NADPH and ATP
What is the optimum temperature for catalyses? For any chemical reaction, the reaction rate enhances with temperature, so the higher the temperature, the faster the rate. For a
Explain lyases These enzymes (code EC 4) cleave C-C, C-O, C-N and other bonds by elimination, forming double bonds or conversely adding groups to double bonds. Common names
Nervous System of Echinoderms Previous to studying the nervous system of echinoderms, you have to bear in mind the peculiar organization of these animals. Here as well, the ne
Ice age is an interval of geologic time between 2 million and 10,000 years ago during that period the northern hemisphere experienced several episodes of continental glacial advan
Continuous suture technique: Monofilament 2'0' prolene sutures, which slide through easily, are used for this technique. three double armed prolene sutures are taken and with val
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd