Answer:
The exogenous pathway occurs when MHC class II molecules present fragments derived from extracellular (exogenous) proteins that are located within the cell. First, pathogens are phagocytized, then endosomes within the cell break down antigens with proteases, which then combine with MHC II.
Explanation:
If you want to gain weight, it’s very important to do it right.
Eat More Calories Than Your Body Burns
The most important thing you can do to gain weight is to create a calorie surplus, meaning you eat more calories than your body needs.
You can determine your calorie needs using this calorie calculator.
If you want to gain weight slowly and steadily, aim for 300–500 calories more than you burn each day according to the calculator.
If you want to gain weight fast, aim for around 700–1,000 calories above your maintenance level.
Fill up on Plenty of Carbs and Fat and Eat at Least 3 Times per Day
Many people try restricting either carbs or fat when trying to lose weight.
This is a bad idea if your goal is to gain weight, as it will make it harder to get in enough calories.
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