Question 1: Name three vitamins that are important for maintaining good vision and explain their functions.

Answer: Vitamin A (essential for good vision and preventing night blindness), Vitamin C (supports tissue health and immune function), Vitamin E (acts as an antioxidant protecting cells).

Question 2: Identify two minerals that are vital for strong bones and teeth. Describe their sources in everyday foods.

Answer: Calcium (found in dairy products, leafy green vegetables, and fortified foods), Phosphorus (present in meat, fish, dairy, and nuts).

Question 3: Explain why iron is an important mineral and name two foods that are good sources of iron.

Answer: Iron is important for making haemoglobin, which carries oxygen in the blood. Good sources include red meat and spinach.

Question 4: Describe the role of vitamin D in the body and mention one way to obtain it naturally.

Answer: Vitamin D helps the body absorb calcium, supporting healthy bones and teeth. It can be obtained through exposure to sunlight.

Question 5: What is a deficiency of vitamin C called, and what are some symptoms?

Answer: A deficiency of vitamin C is called scurvy. Symptoms include fatigue, swollen gums, and bleeding gums.

Question 6: Draw a labelled diagram of a human hand indicating where you might find a high concentration of a specific mineral or vitamin. Specify which mineral or vitamin in your answer.

Answer: A sketch of a hand with labels pointing to the fingertips or nails indicating sources of vitamin A or iron (e.g., nails for iron deficiency, fingertips for vitamin A).

Question 7: List two foods rich in magnesium and explain why magnesium is important for the body.

Answer: Foods: Nuts and whole grains. Magnesium is important for muscle and nerve function, energy production, and maintaining healthy bones.

Question 8: Why is it important to have a balanced intake of all micronutrients? Provide two reasons.

Answer: To prevent deficiencies that can cause health problems, and to support overall growth, development, and immune function.

Question 9: Describe how excessive intake of certain vitamins can be harmful. Provide an example of a vitamin and its potential risk when consumed in excess.

Answer: Excessive intake of vitamin A can lead to toxicity, causing symptoms such as dizziness, nausea, and even liver damage.

Question 10: Identify the main function of iodine in the body and mention a common food source.

Answer: Iodine is essential for proper thyroid function and hormone production. A common source is iodised salt.