Proteins
Proteins is the most thermogenic of all nutrients and macromolecules we eat. Thermogenesis is the generation of due to digestion and metabolism of food. Studies shows that proteins tend to be more thermogenic that carbohydrates and fats. This means that the calorie given of by proteins is converted and released as heat and less available for storage. This means that the stored energy formed from protein much of it is released as heat and unlike other macromolecules few of it is converted to a energy that can be stored.
Water travels from roots to leaves, where it is used for photosynthesis.
I think it my be a structure to life
<span>The correct answer is A. Photosynthesis. To conduct photosynthesis, you need chloroplasts and these are found in the leaves which is why the leaves are green. Roots don't have them and they aren't exposed to the sun and don't create energy using photosynthesis. They do however absorb nutrients from the soil.</span>
To preserve and keep them fresh