Protein and Muscles Quiz: Test Your Knowledge (Grade 8).

📚 Quick Study Guide

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• What are Proteins? Proteins are essential nutrients that help build and repair tissues in your body. Think of them as the building blocks!
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• Why are Proteins Important for Muscles? They provide amino acids, which are needed to repair muscle fibers after exercise and help them grow stronger.
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• Food Sources of Protein: Great sources include meat, poultry, fish, eggs, dairy products, beans, lentils, nuts, and seeds.
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• How Much Protein Do You Need? The amount of protein needed varies, but a general guideline for teens is around 0.8-1 gram of protein per kilogram of body weight per day. A simple calculation is: Your weight in kg * 0.8 (or 1) = grams of protein needed daily.
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• Amino Acids: Proteins are made up of amino acids. There are essential and non-essential amino acids. Essential ones must come from your diet!
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• Protein Synthesis: This is the process where your body uses amino acids to build new proteins. Exercise stimulates protein synthesis.
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• Tips: Try to include a source of protein with each meal and snack!

🏋️ Practice Quiz

1. Which of the following is the main function of protein in the body?
   1. A. Providing quick energy
   2. B. Building and repairing tissues
   3. C. Storing vitamins
   4. D. Helping with digestion
2. What are the building blocks of proteins called?
   1. A. Glucose
   2. B. Fatty acids
   3. C. Amino acids
   4. D. Vitamins
3. Which food is an excellent source of protein?
   1. A. Apple
   2. B. Bread
   3. C. Chicken
   4. D. Salad
4. What happens to muscle fibers when you consume protein after exercise?
   1. A. They shrink
   2. B. They are repaired and grow stronger
   3. C. They turn into fat
   4. D. They disappear
5. Which of the following is a dairy source of protein?
   1. A. Orange juice
   2. B. Milk
   3. C. Soda
   4. D. Water
6. Why are essential amino acids important?
   1. A. The body can produce them on its own.
   2. B. They are only needed in small amounts.
   3. C. They must be obtained from the diet.
   4. D. They are not important for muscle growth.
7. What process does exercise stimulate in relation to protein?
   1. A. Protein breakdown
   2. B. Protein storage
   3. C. Protein synthesis
   4. D. Protein excretion