#1
Which of the following is a fat-soluble vitamin?
Vitamin A
ExplanationFat-soluble vitamins dissolve in fat and are stored in the body's fatty tissues.
#2
Which nutrient is primarily responsible for providing energy to the body?
Carbohydrate
ExplanationCarbohydrates are the body's main source of energy, providing fuel for physical activity and organ function.
#3
Which mineral is essential for maintaining healthy bones and teeth?
Calcium
ExplanationCalcium is vital for building and maintaining strong bones and teeth, as well as for muscle function, nerve transmission, and hormone secretion.
#4
What is the function of vitamin D in the body?
Aids in calcium absorption
ExplanationVitamin D helps the body absorb calcium and phosphorus, essential minerals for maintaining strong bones and teeth.
#5
Which of the following vitamins is primarily found in citrus fruits and is essential for collagen synthesis?
Vitamin C
ExplanationVitamin C, also known as ascorbic acid, is necessary for collagen synthesis, wound healing, and the repair and maintenance of cartilage, bones, and teeth.
#6
What is the main function of potassium in the body?
Supporting muscle function
ExplanationPotassium is crucial for maintaining proper muscle function, including regulating heartbeat and muscle contractions.
#7
What is the primary function of folate (vitamin B9) in the body?
Prevention of neural tube defects during pregnancy
ExplanationFolate, or vitamin B9, is vital for preventing neural tube defects in developing fetuses during pregnancy, as well as for DNA synthesis and repair.
#8
Which of the following nutrients is an essential component of cell membranes and is used in the production of hormones?
Fat
ExplanationFats play a crucial role in the structure of cell membranes and are essential for the synthesis of hormones, including steroid hormones.
#9
Which mineral is a crucial component of thyroid hormones, playing a key role in regulating metabolism?
Iodine
ExplanationIodine is essential for the production of thyroid hormones, which regulate metabolism, growth, and development.
#10
Which of the following is a trace mineral important for antioxidant function and thyroid hormone synthesis?
Selenium
ExplanationSelenium acts as a powerful antioxidant, protecting cells from damage, and is essential for the synthesis of thyroid hormones.
#11
Which mineral is necessary for the synthesis of thyroid hormones and is also important for metabolism regulation?
Selenium
ExplanationSelenium is essential for the synthesis of thyroid hormones and acts as an antioxidant, protecting cells from damage caused by free radicals.
#12
Which of the following nutrients is important for the proper functioning of the nervous system and is involved in the synthesis of neurotransmitters?
Vitamin B6
ExplanationVitamin B6, also known as pyridoxine, is crucial for the proper functioning of the nervous system, as well as for the synthesis of neurotransmitters like serotonin and dopamine.