Life Processes ...

The splitting of $$H_2 $$O to form $$O_2$$ and carbon compounds occur during:

Which of the following has highest pH?

The acid present in the stomach:

(i) Sunlight, carbon dioxide, chlorophyll and water are necessary.
(ii) Oxygen is absorbed.
(iii) Leaves carry out photosynthesis.
(iv) Proteins are made during photosynthesis. 

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as 

Which of the following statements is/are correct?
i) All green plants can prepare their own food.
ii) Most animals are autotrophs.
iii) Carbon dioxide is not required for photosynthesis.
iv) Oxygen is liberated during photosynthesis.
Choose the correct answer from the options below

The enzymes present in the saliva convert 

Select the correct statement(s).

Which of the following causes red colour of the blood?

 What is a higher side blood pressure of the normal body-