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 Carbon dioxide is essential for photosynthesis.Apparatus: A potted healthy plant with long and narrow leaves, a wide mouthed glass bottle, split cork.Chemicals: Potassium Hydroxide solution (KOH), vaseline, Iodine solution.Procedure :1) Select a healthy potted plant with long and narrow leaves and keep it in darkness for two or three days so that leaves are free from starch. Take a wide mouthed glass bottle, a cork.2) Take 5-10ml of potassium hydroxide solution into the bottle.3) Close the mouth of the bottle with split cork.4) Early in the morning insert one selected half of the leaf without cutting it from the plant, into the bottle through the split cork.5) The other half of the leaf is outside the cork.6) The bottle is kept air tight by applying vaseline around the rim of the mouth of the bottle.7) Keep this apparatus in sun light for 3-4 hours. After the completion of time, detach the leaf from the plant and take it out of the bottle.8) Test the detached leaf for starch test with iodine solution.Observation : The part of the leaf which is inside the bottle does not turn deep blue, while the basal part of the leaf that is exposed to surroundings prepares starch and turns deep blue.Inference : The potassium Hydroxide absorbs the carbon dioxide present inside the bottle hence the leaf inside the bottle does not turn deep blue, while the basal part of the leaf that is exposed to surroundings prepares starch and turns deep blue.
Conclusion : Green leaves can perform photosynthesis only when Carbon dioxide is available. Hence carbon dioxide is essential for photosynthesis.Precautions :1. The bottle should be kept airtight by applying vaseline around the rim of the mouth of the bottle.2. Make sure that potassium hydroxide does not come in contact with leaf inside the bottle.3. The leaf should not be detached from the plant till the experiment is completed.
explane the role of nitrogenase enzyme
What are the benefits of cardiac rehabilitation ? The most substantial benefits include: 1 Improvement in exercise tolerance. 2 Improvement in symptoms. 3 Improvement in blood
Concomitant caroid endarterectomy and CABG : Symptoimatic or asymptomatic carotid artery disease may be present in patients undergoing CABG. It is very important to recognize thi
Treatment of diarrhea Loperamide (Imodium, and others), an over-the-counter synthetic opioid (4-mg loading dose, then 2 mg orally after each loose stool to a maximum of 16 mg/d
Describe Alternation of Generations? Alternation of Generations : In meiosis, four haploid daughter cells are formed from one diploid mother cell. The life cycles of sexuall
why excretory organ of prawn is called green gland?
Guar Gum Guar Gum is derived from seed of legume Cyamopsis tetragonalobus resembling soyabean plant. Guar gum is composed of Galactomannan Galactose: mannose in the ratio 1:2.
What happens to a cell when placed in a salt solution and then into distilled water?
Epidemiology The organism does not appear to be very host or tissue specific and can infect naturally a large number of avian and mammalian species. Chlamydiosis has been reco
Q. Explain about Celiac Disease? Gluten-sensitive enteropathy or, as it is more commonly called, celiac disease, is an autoimmune inflammatory disease of the small intestine. I
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