Which of these organelles produces h2o2 as a by-product?

The parts constituting a single cell are called its organelles. Examples are ribosomes, mitochondria, endoplasmic reticulum, Golgi bodies and many more. You might confuse the answer to this question because there is an organelle named Peroxisome. It is called such because it synthesizes Hydrogen Peroxide or H₂O₂. It breaks the compound into its individual components, water and oxygen. So, it uses up H₂O₂, not produce it. The organelle that actually produces H₂O₂ as a by-product is the mitochondria through the process of respiration.

Answer : option a) 84explanation :

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.