Photosynthesis, Biology

Assignment Help:

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.

488_Photosynthesis.png


Related Discussions:- Photosynthesis

Agro industrial-selenium, Selenium Glutathione peroxidase (GSH-Px) was...

Selenium Glutathione peroxidase (GSH-Px) was the first selenium metalloenzyme identified.Glutathione peroxidase catalyzes the reduction of hydrogen peroxide and lipid h yp r o

What is nadp and nadph, What is NADP and NADPH? NADP is the abbreviatio...

What is NADP and NADPH? NADP is the abbreviation of the nicotinamide adenine dinucleotide phosphate cation, a hydrogen acceptor. NADPH is made when NADP binds to one hydrogen a

Ascus, what is ascus ?

what is ascus ?

Explain high fibre diets, High fibre diets High fibre  diets: The pat...

High fibre diets High fibre  diets: The patients  are advised  to  eat  high  fibre cereals as whole grain flour and bread, whole grain bread cereals, whole wheat pasta and b

Liquid fuels, Petroleum Liquid fuels are widely used for industrial and...

Petroleum Liquid fuels are widely used for industrial and domestic purposes. Almost all internal combustion engines run on liquid fuels. Liquid fuels are also used in heat gene

Enzymes of endoplasmic reticulum, ENZYMES OF E.R. Numerous enzymes have...

ENZYMES OF E.R. Numerous enzymes have been found associated with its membranes, Glucose-6-phosphatase is the marker enzyme of E.R. The chief being those required for the synt

Hepatic portal system and the pulmonary circuit, Trace the flow of blood th...

Trace the flow of blood through the systemic circuit (hepatic portal system) and the pulmonary circuit, beginning and ending in the left ventricle .  You will be using named chamb

Explain the alanine cycle, The Alanine  cycle Follow the alanine link ...

The Alanine  cycle Follow the alanine link in the alanine cycle. The process goes as under: 1)  Pyruvate formed from glycolysis in  the muscle  is converted to  alanine by t

Nutrition - different feeding habits, Different Feeding Habits Feeding ...

Different Feeding Habits Feeding habits of animals depend on the nature of the food consumed. Herbivorous : When plants are eaten. Examples - Horse, cow, rabbit, apes.

Explain an important strategy of group meetings, Explain An important strat...

Explain An important strategy of group meetings An important strategy could be to conduct small group meetings for behavioural change encouraging full participation. The group

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd