Answer:
Digestive system breakdown small proteins into amino acids by chemical digestion using enzymes (option B).
Explanation:
One of the main functions of the digestive system is to degrade food to facilitate its absorption at the intestinal level. This degradation has a mechanical phase, which includes chewing and contracting the stomach, and an enzymatic phase.
The enzymes that allow the breakdown of proteins into amino acids are called proteases, or peptidases. They are enzymes capable of breaking peptide bonds, obtaining at the end amino acids that can be more easily assimilated by the organism.
<em>The other options are not correct because </em><u><em>mechanical digestion</em></u><em> reduces the size of the digested food and mixes it with the gastric juices, but does not break the peptide bonds.</em>
D. Making up the rules for the game.
<span>After the first year of life, adolescence is the most important period of growth of the whole life of a person. <span>The nutritional needs of adolescents are soaring.
</span>The recommended energy intake depends on the stage of growth, genetic factors, and physical activity level. <span>It varies between 2 100 and 2 900 kcal per day in girls, and 2400 and 3500 kcal in boys.
</span><span>Indeed, nutritional needs are especially increased, related to the pubertal growth (skeletal and muscular development).
</span><span>The nutritional needs of adolescents
</span>The nutritional needs of teenagers are higher than all other ages. <span>Note, however, that children of the same age and sex may be at very different stages of development.
</span><span>It is therefore difficult to provide quantified nutritional recommendations.
</span><span>However, adolescents, whatever their stage of development, have higher nutritional needs in protein, calcium and iron.</span></span>
Always weigh out the cons rather than the pros,to make you think twice on the situation you're in and what you're about to do...and think to yourself is it really worth it?If the pros weigh out the cons...You should have fun...but in a safe way.Always have a conscience to help you decide on these decisions.<span />
