ENERGY FOR PHYSICAL ACTIVITIES AND DIGESTION OF CARBOHYDRATE

SUMMARY OF NOTE ON ENERGY FOR PHYSICAL ACTIVITIES

• Energy is the capacity to do work

• Physical activity refers to any bodily movement produced by skeletal muscles that requires energy expenditure

• The body needs energy to perform any movement or physical activities.

• The unit of energy needed for muscle contractions in human body is ATP(Adenosine Triphosphate)

• Energy is derived from the breakdown of nutrients.

• A balanced diet is one that provides all the essential nutrients (carbohydrates, proteins, fats, vitamins, minerals, and water) in the correct proportions to maintain health, support growth, and provide adequate energy.

• The main classes of food (nutrients) are: carbohydrates, proteins, fats, vitamins, minerals, and water.

• Carbohydrates, fats, and proteins are the primary sources of energy.

• Food eaten must be digested before they can yield energy.

• Digestion is the process of breaking down large, complex, and insoluble food molecules into smaller, simpler, and soluble molecules that can be absorbed by the body.

SUMMARY OF DIGESTION OF CARBOHYDRATE

• Carbohydrate digestion starts in the mouth with the enzyme salivary amylase/ptyalin, which begins breaking down starches into smaller sugars.

• This action stops in the acidic environment of the stomach due to the presence of HCL

• In the small intestine, pancreatic amylase further breaks down starches into disaccharides, and then specific enzymes (like maltase, sucrase, and lactase) on the intestinal lining break these down into monosaccharides (glucose, fructose, galactose) for absorption.

 (Complement this note with the detailed explanation done in the class)


Comments

  1. AnonymousMay 20, 2025 at 7:58 PM

    Sir this summary is too small compared to the explanation in the class

    ReplyDelete

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