Published By-

Param Publication

Photosynthesis
The process by which green plant prepare their food in the presence of sunlight, (Carbondioxide)CO2 , water, chlorophyll.

          There are four requirement for photosynthesis.
(A)    Sunlight:- It comes from sun & provide energy for photosynthesis.
(B)    Carbon dioxide (CO2):- It is obtained from air and taken through tiny pores called stomata present on the under surface of leaves.
(C)    Chlorophyll:- The chlorophyll is present in the chloroplast. Chloroplast regarded as Kitchen of cell and present in Green leaves.
•    Besides chlorophyll cetain other pigments are also present in plants like :
    (a) Carotenes : Organe in colour e.g. Carrot.   
    (b) Xanthophylls : Orange yellow in colour e.g. Maize.
    (c) Phycobilins : Different colours like red, violet e.g., Blue-green algae, brown algae etc.
    (D) Water (H2O):- They are obtained from the soil by the roots of plants and are transported to the leaves.
    Plants have Vascular tissues called Xylem & Phloem.
    (i) Xylem transport water and minerals to the leaves.
    (ii) Phloem transport food (Sucrose) to various part of plant.

 

 

 

 

 



 

Smart classes
Shalini's Biology classes

Course : CBSE Class 7

Start Date : 18.01.2022

End Date : 28.02.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Science(9 hours) 7:00 PM 7:00 PM 7:00 PM 7:00 PM 7:00 PM 7:00 PM 7:00 PM
Hindi(9 hours) 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM 5:00 PM
Class 7 - ALL Subjects
veda skill training academy

Course : CBSE Class 7

Start Date : 19.01.2022

End Date : 31.03.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Mathematics(30 hours) 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 12:45 PM 12:45 PM
Science(30 hours) 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 6:00 AM 12:45 PM