Essential for photosynthesis, Biology

Assignment Help:

Aim : To prove that light is essential for photosynthesis.
Apparatus : A potted plant, a light screen, beaker, iodine solution.
Procedure : Keep a potted plant in darkness for two days to make us sure that the leaves are free from starch. Attach a light screen to one of the leaves. The light screen holds the leaf by a lid. The lid has a cut design like a star water the plant and keep it in sunlight for 4 or 5 hours keep in mind that the leaf with light screen receives sunlight on the leaf through the cut design in the lid.
Then detach the leaf from the plant and remove light screen. Test the leaf for starch using iodine solution.
Observation : You will see blue colour only in the area which received the sunlight. This area resembles the cut design on the lid of the light screen. Rest of leaf is colourless.
Inference : In blue coloured portion only carbohydrates are present. That means the part of the leaf which received sunlight performed photosynthesis. Rest of the leaf remained colourless due to non-performance of photosynthesis. 

Conclusion : From the above experiment, it is clear that light is essential for photosynthesis.
Precautions : The potted plant should be kept in darkness for two days or three days.

595_essential for photosynthesis.png


Related Discussions:- Essential for photosynthesis

Determine the accession number for the related gene-locus, Please answer th...

Please answer the following two questions on Sequence X: 1) DNA sequence databases 1. What is the EMBL-Bank accession number for this sequence (use BLAST)? 2. Which gen

What is parasitism, Q. What is parasitism? The Parasitism is the ecolog...

Q. What is parasitism? The Parasitism is the ecological interaction in which a being lives at the expense of another. The parasite often doesn't cause immediate death of the ho

What is the typical localization of the tropical forests, What is the typic...

What is the typical localization of the tropical forests regarding latitude? Tropical rain forests, as the Amazon forest and the Congo forest, are typically located in low lati

Psychology, Psychology : This is the study of human mind. On other words Ps...

Psychology : This is the study of human mind. On other words Psychology is the science of behavior or mental processes. Its immediate aim is to understand the individuals or groups

Main cytoplasmic structures present in animal cells, What are the main cyto...

What are the main cytoplasmic structures present in animal cells? Ans) The major cytoplasmic structures of the cell are the centrioles, the cytoskeleton, lysosomes, mitochondria

Determine the functional structures of the leaf veins, What are the plant t...

What are the plant tissues that constitute the functional structures of the leaf veins? Leaf veins are made of vascular tissues. They are constitute by xylem and phloem that re

Acid rain, what are the two main pollutants that contribute to acid rain

what are the two main pollutants that contribute to acid rain

Carbohydrate required for underweight - nutritional care, Explain the Carbo...

Explain the Carbohydrate required for underweight - Nutritional Care? Liberal amounts of easy to digest carbohydrates should be included in the diet. The intake of dietary fibr

Explain the alternaria - fungi, Explain the Alternaria - Fungi? Classif...

Explain the Alternaria - Fungi? Classification Kingdom - Mycetae Division - Amastigomycota Form Class - Deuteromycetes Form Subclass - Hyphomycetidae Form Order

Advantage & disadvantage of using fungi as source of protein, Define Advant...

Define Advantage & disadvantage of using fungi as source of protein? Advantages 1. Easy to harvest from culture medium. 2. Texture of the fungi improves the functional

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