💡Calories are a unit of energy and are obtained from the macronutrients in food.
⚙️The body converts macronutrients into ATP, the body's energy currency.
🔥ATP production occurs through metabolic pathways such as glycolysis, the Krebs cycle, beta oxidation, and oxidative respiration.
⚖️Weight loss or gain is determined by the balance between energy intake and expenditure.
🔄Energy balance can be influenced by factors such as genetics, hormones, and physical activity.
How is energy obtained from food?
—Energy is obtained from the macronutrients in food, namely carbohydrates, proteins, and fats. These macronutrients are broken down and converted into ATP, which is used as energy by the body.
What are some metabolic pathways involved in energy production?
—Metabolic pathways involved in energy production include glycolysis, the Krebs cycle, beta oxidation, and oxidative respiration. These pathways convert macronutrients into ATP, the body's energy currency.
What factors influence weight loss or gain?
—Weight loss or gain is determined by the balance between energy intake and expenditure. Other factors that can influence weight include genetics, hormones, and physical activity levels.
Can metabolism vary between individuals?
—Yes, metabolism can vary between individuals due to factors such as genetics, age, body composition, and hormonal differences. Some individuals may have a faster or slower metabolism than others.
How can I achieve weight loss?
—To achieve weight loss, you need to create a calorie deficit by consuming fewer calories than you expend. This can be achieved through a combination of a balanced diet and regular physical activity.
00:08A calorie is a unit of energy obtained from macronutrients in food.
00:30The body converts macronutrients into ATP, the body's energy currency.
01:20Metabolic pathways like glycolysis, the Krebs cycle, beta oxidation, and oxidative respiration produce ATP.
02:45Weight loss or gain is determined by the balance between energy intake and expenditure.
03:25Factors such as genetics, hormones, and physical activity can influence energy balance.
