Question

name the dead cells present in our body which give mainly energy to our body​

Answer 1

Answer:

mitchocondria .................

Answer 2

Answer:

(a) Carbohydrates are one of the main types of nutrients found in food. They are the most important source of energy for the body of many organisms, including humans. Carbohydrate provides about 4 kcal per gram and is the energy that is used first to fuel muscles and the brain. Fat is also one of the three main macronutrients, along with carbohydrate and protein. Compared to carbohydrate and protein, each gram of fat provides more than twice the amount of calories (9 kcal per gram).

So, the answer is Carbohydates and Fats.