Question

The food material taken in during the process of nutrition is used in cells to provide energy.        

    Some organisms use oxygen to breakdown glucose completely into carbondioxide and water

    And somedonot involve oxygen .Do any four from the following.

(a) Name the end products of glucose breakdown in aerobic respiration.

(b) When we breathe out,the air passage does not collapse. Why?

(c) Why are cramps caused in our muscles during sudden activity?

(d)  Name the stored food of  animals

(e) Any two common features of respiratory organs.​

Answer 1

Answer:

a) carbon dioxide (co2) + water(h20) + energy ( in form of ATP)

Answer 2

Answer:

(a) Every cell in your body needs oxygen to function. You get the oxygen your cells need from the air you breathe. The air you breathe is made up of 20 percent oxygen. The rest of the air is mostly nitrogen (79%). Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.