Question

Read the paragraph and answer the following questions.

Students of 10 A were divided into 3 different groups called

A, B,& C.They were asked to do the 3 different experiments

related to photosynthesis. Group A were given the topic –

chlorophyll is necessary for photosynthesis, Group B, CO2 is

necessary for photosynthesis and Group C, sunlight is

necessary for photosynthesis.They completed the

experiments and submitted the reports.

1)What is the first step to be done for all the three

experiments? (1)

2)Why do we need to use a water bath to boil leaf in alcohol?

(1)

3)In which of the 3 experiments, did they use KOH ?

What is the role of KOH ?

(1)

4)What is the observation made by the students of Group

B? (1)​

Answer 1

Answer:

Each cell runs on the chemical energy found mainly in carbohydrate molecules (food), and the majority of these molecules are produced by one process: ...