Enzymes are made of strings of amino acids chemically bonded to one another. These bonds give each enzyme a unique structure, which determines its function. They mostly break down carbohydrates and fats. Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids. Amino acids are joined together by peptides, which are broken by proteases.
Answer:
The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
Explanation:
Homeostasis, my friend.
Homeostasis is the process of maintaining a constant internal environment (temperature, water content, available energy, available oxygen & concentration of wastes in the blood.) Some animals are able to do this and are called endothermic or 'warm-blooded' (like humans). However, not all animals are able to do all of this - and they are referred to as ectothermic or 'cold-blooded.'
Animals need to be able to maintain a stable internal environment because if they do not, they will most likely die. Animals need warmth to survive, so they need to be able to have a constant body temperature whether it be by using their body to create warmth or having to sit in the sun to keep warm,
Hope this helps.
