#1
Which of the following is a primary source of vitamin D?
Salmon
ExplanationSalmon is a primary source of vitamin D due to its high content.
#2
What is the recommended daily water intake for adults?
2 liters
ExplanationAdults are recommended to drink 2 liters of water per day for optimal hydration.
#3
What is the main function of the respiratory system?
Oxygenation of blood
ExplanationThe respiratory system's primary function is to oxygenate the blood for cellular respiration.
#4
Which of the following is not a symptom of dehydration?
Increased urination
ExplanationIncreased urination is not a symptom of dehydration; it is a sign of adequate hydration.
#5
Which of the following is a characteristic of a balanced diet?
Varied nutrients from different food groups
ExplanationA balanced diet includes a variety of nutrients from different food groups for overall health and well-being.
#6
What is the main benefit of regular stretching exercises?
Improved flexibility
ExplanationRegular stretching exercises improve flexibility, range of motion, and reduce the risk of injury.
#7
What is the recommended frequency for strength training exercises?
Twice a week
ExplanationStrength training exercises are recommended to be performed twice a week to build and maintain muscle mass.
#8
Which of the following exercises primarily targets the abdominal muscles?
Crunches
ExplanationCrunches primarily target the abdominal muscles for strength and definition.
#9
What does BMI stand for?
Body Mass Index
ExplanationBMI stands for Body Mass Index, a measure of body fat based on height and weight.
#10
What is the recommended duration for cardiovascular exercise per week?
60 minutes
ExplanationThe recommended duration for cardiovascular exercise per week is 60 minutes for optimal heart health.
#11
Which of the following is a symptom of a heart attack?
Chest pain or discomfort
ExplanationChest pain or discomfort is a common symptom of a heart attack and requires immediate medical attention.
#12
Which of the following is a symptom of anemia?
Pale skin
ExplanationPale skin is a common symptom of anemia due to decreased red blood cell production or low hemoglobin levels.
#13
What is the primary function of the hypothalamus in the brain?
Controlling hunger and thirst
ExplanationThe hypothalamus in the brain controls hunger and thirst, regulating appetite and fluid balance.
#14
What is the main function of the pancreas in the digestive system?
Regulation of blood sugar
ExplanationThe pancreas regulates blood sugar levels by secreting insulin and glucagon in response to glucose levels in the blood.
#15
Which of the following nutrients is primarily responsible for muscle repair and growth?
Protein
ExplanationProtein is essential for muscle repair and growth due to its amino acid content.
#16
What is the primary function of antioxidants in the body?
Neutralizing free radicals
ExplanationAntioxidants primarily function to neutralize free radicals, reducing oxidative stress and cellular damage.
#17
Which of the following is a benefit of adequate sleep?
Improved memory consolidation
ExplanationAdequate sleep improves memory consolidation, cognitive function, and overall brain health.
#18
What is the primary function of the cerebellum in the brain?
Controlling balance and coordination
ExplanationThe cerebellum in the brain primarily controls balance and coordination of movement.
#19
Which of the following is a benefit of regular meditation?
Improved mental clarity and focus
ExplanationRegular meditation can lead to improved mental clarity and focus, reduced stress, and enhanced overall well-being.