Contents

Photosynthesis:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.


Why leaves and some other parts of the plants are green? It because……
a) they have cell walls 

b) they have chlorophyll
c) they have green cytoplasm
d) they have plasma membrane

b

Which of the following absorbs sunlight?
a) protein                                              

b) fats
c) chlorophyll                     

d) vitamin A

c

Where the chlorophyll is present in the plant cell?
a) mitochondria                  

b) chloroplast
c) ribosomes                        

d) nucleus

b

Which of the following energy is/are used by plants to prepare food?
a) light                                  

b) heat
c) chemical energy                             

d) all of these

a

Which of the following gas is used during photosynthesis?
a) oxygen                                             

b) carbon dioxide
c) nitrogen                                            

d) methane

b