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

Define effect on human placental lactogen in pregnancy, Define effect on Hu...

Define effect on Human placental lactogen in pregnancy? Human placental lactogen, with a structure similar to the growth hormone, increases throughout pregnancy. Its rate of pr

How cholera is generally spread in humans, How cholera is generally spread ...

How cholera is generally spread in humans Associated Foods: Cholera is generally a disease spread by poor sanitation, resulting in contaminated water supplies. Sporadic cases o

Zoology, living and non living

living and non living

How to investigate mitral regurgitation by electrocardiogram, Q. How to Inv...

Q. How to Investigate mitral regurgitation by Electrocardiogram? Patients with severe mitral regurgitation often have atrial fibrillation. Left atrial enlargement is a common f

Thymus, THYMU S - It is derived from the endoderm of the embryo. S...

THYMU S - It is derived from the endoderm of the embryo. Structur e . The thymus gland is located in the upper part of the thorax near the heart. It is a soft, pinkish, b

Main factors for the growth of a population, Q. What are the main limiting ...

Q. What are the main limiting factors for the growth of a population? The factors that bound the growth of a population can be divided into abiotic factors and biotic factors.

Determine the amount of vasopressin, Consider the case of a rare mutant in ...

Consider the case of a rare mutant in which the concentration of solutes in the kidney medulla interstitial spaces is equal to the concentration of solutes in the liquid in the lum

Uses of microbes in industry-antibiotics, Normal 0 false fals...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

How are gametes formed in the pteridophyte life cycle, How are gametes form...

How are gametes formed in the pteridophyte life cycle, by mitosis or meiosis? What is the type of meiosis that occurs in pteridophytes? In pteridophytes gametes are made by mit

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