Human body gets energy by the breakdown of complex organic molecules, such as carbohydrates, proteins, and fat molecules by the process of respiration. During respiration, energy is released in the form of ATP, which is used for the various metabolic functions.
The primary source for the energy is carbohydrate molecules, followed by lipids. When all the available carbohydrates and fats are used in respiration, some amino acids present molecules are used as source of energy.
Thus, the correct option). is 'carbohydrates, lipids, proteins.'
There are 3 sources of energy, which are also known as macronutrients ,carbohydrates, protein, and fat.
Of these three, carbohydrates are the body’s preferred source of energy. Carbohydrates break down into glucose, which is an immediate source of energy especially for the brain and muscles. The macronutrient proportions recommended for general, healthy diet are: 45-65% of energy (or calories) from carbohydrates, 10-20% of energy (or calories) from protein and 20-35% of energy (or calories) from fat.
We see the moon because the sun's light reflects off it. So the phases change depending on how much the sun reflects of it. The moon circles around the Earth so at certain times there will be a full moon and at certain times a new moon and everything in between.
They change conformation/shape when the right molecule bind in their active site.
They enable reactions to proceed ‘downhill’. For enzyme, when the reactants are more than the products, the reaction proceeds to the right of the reaction. Career proteins also carry molecules down their concentration gradient.
Both career proteins and enzymes are not denatured during the process of their biological activity