#1
Which of the following is a macronutrient?
Protein
ExplanationProtein is a macronutrient, along with carbohydrates and fats, that the body requires in large amounts for energy and growth.
#2
What is the body's largest organ?
Skin
ExplanationThe skin is the body's largest organ, serving as a protective barrier against the external environment.
#3
Which of the following is a micronutrient?
Vitamin C
ExplanationVitamin C is a micronutrient, along with vitamins A, D, E, K, and the B vitamins, that the body requires in small amounts for various physiological functions.
#4
What is the recommended daily intake of fruits and vegetables for a healthy diet?
5 servings
ExplanationThe recommended daily intake of fruits and vegetables for a healthy diet is at least 5 servings, or about 2.5 cups.
#5
What is the primary source of vitamin D for the human body?
Sunlight
ExplanationThe primary source of vitamin D for the human body is sunlight, which triggers the synthesis of vitamin D in the skin.
#6
What is the recommended daily water intake for an average adult?
8 liters
ExplanationThe recommended daily water intake for an average adult is 8 cups, or about 2 liters.
#7
Which lifestyle factor is most strongly associated with heart disease?
Smoking
ExplanationSmoking is the lifestyle factor most strongly associated with heart disease, increasing the risk of heart attack and stroke.
#8
Which nutrient is the body's primary source of energy?
Carbohydrates
ExplanationCarbohydrates are the body's primary source of energy, providing fuel for physical activity and organ function.
#9
What is the recommended duration for aerobic exercise per week?
30 minutes
ExplanationThe recommended duration for aerobic exercise per week is at least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity activity.
#10
What is the primary function of the respiratory system?
Breathing and gas exchange
ExplanationThe primary function of the respiratory system is to facilitate breathing and the exchange of oxygen and carbon dioxide in the body.
#11
What is the primary function of the lymphatic system?
Fighting infections
ExplanationThe primary function of the lymphatic system is to fight infections and maintain fluid balance in the body.
#12
Which vitamin is essential for calcium absorption in the body?
Vitamin D
ExplanationVitamin D is essential for calcium absorption in the body, helping to maintain strong bones and teeth.
#13
Which hormone regulates blood sugar levels in the body?
Insulin
ExplanationInsulin is the hormone that regulates blood sugar levels, allowing cells to take in glucose for energy.
#14
What is the main function of antioxidants in the body?
Fight oxidative stress
ExplanationAntioxidants help fight oxidative stress in the body, which can damage cells and lead to various diseases.
#15
What is the role of serotonin in the body?
Regulating sleep and mood
ExplanationSerotonin is a neurotransmitter that plays a role in regulating sleep, mood, and other functions in the body.