Marine Corps Physical Fitness Test. Fitness is essential to the day-to-day effectiveness and combat readiness of the Marine Corps. The Marine Corps considers physical fitness an indispensable aspect of leadership.
A: Chemical energy is for producing heat in the human body to sustain vital functions, converting solar energy in plants through photosynthesis, producing electrical energy in batteries to power devices and burning fossil fuels in combustion engines to produce heat or motion.
Chemical Digestion of Carbohydrates, Proteins & Fats. Your body has specific ways of digesting carbs, proteins and fats. You probably know that a mix of carbs, protein and fat is essential for proper body function and sufficient energy. However, your body canât use these macronutrients without chemically breaking them down into usable molecules, which are used for generating energy, making enzymes and producing hormones.