Question 1:

The correct answer is A. A variety of different foods that provide adequate amounts of nutrients.

A balanced diet refers to eating a wide range of foods in the right proportions so that your body gets all the essential nutrients it needs to function properly — including carbohydrates, proteins, fats, vitamins, minerals, and water. The other options are overly narrow or incorrect interpretations.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 2:

The correct answer is D. roughage.

Leafy green vegetables, nuts, and fruits are all excellent sources of dietary fiber (also known as roughage). While nuts do contain protein and fat, and fruits contain carbohydrates, the common nutritional benefit shared by all three groups listed is their high roughage content, which aids digestion.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 3:

The correct answer is A. Rice.

Rice is a staple food that is rich in carbohydrates, which provide the body with energy.

• Fish and cheese are primarily sources of protein and fat.

• Milk contains carbohydrates (lactose), but it is not as concentrated a source as rice, and is more known for protein, fat, and calcium.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 4:

The correct answer is C. An active teenager who plays sport.

Here's why:

• Active teenagers have high energy requirements due to a combination of rapid growth, development, and high levels of physical activity (such as playing sports).

• An 80-year-old man generally has a lower metabolic rate and lower physical activity, so energy needs are lower.

• A newborn baby has high energy needs relative to body size, but in absolute terms, far less total daily energy than a teenager.

• A person working in an office has a sedentary lifestyle, so energy requirements are much lower than someone who is physically active.

So, among the options, the active teenager has the greatest total daily energy need.

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 5:

Explanation:
Anaemia (specifically iron-deficiency anaemia, the most common type) occurs when there is a lack of healthy red blood cells due to insufficient iron in the diet. Iron is essential for making haemoglobin, which carries oxygen in the blood. Among the options:

• Fish contains some iron but is not the richest source.

• Fruit provides vitamins (like vitamin C, which aids iron absorption) but is not a significant direct source of iron.

• Dairy produce contains very little iron.

• Red meat is one of the best sources of haem iron, which is easily absorbed by the body.

Therefore, increasing red meat intake is the most effective dietary change to combat anaemia.

Final answer: D. Red meat

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 6:

• Scurvy is caused by a deficiency of vitamin C, not by eating too many fatty foods.

• Constipation is more commonly linked to a lack of dietary fibre (roughage) and insufficient water intake, not directly to high fat intake.

• Starvation results from a severe lack of food or nutrients overall, not from an excess of fatty foods.

• Coronary heart disease is strongly associated with a diet high in saturated and trans fats, which can raise cholesterol levels, lead to atherosclerosis (narrowing of the arteries), and increase the risk of heart attacks and other cardiovascular problems.

Final answer: D. Coronary Heart disease

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 7:

During pregnancy, especially at 6 months, a mother needs extra protein for the baby's growth and iron to prevent anaemia and support increased blood volume. Comparing the four foods per 100 g:

• Food A: Protein = 6 g, Iron = 2.1 mg

• Food B: Protein = 0.8 g, Iron = 0.5 mg

• Food C: Protein = 0.7 g, Iron = 0.6 mg

• Food D: Protein = 3.8 g, Iron = 1.4 mg

Food A provides the highest protein (6 g) and the highest iron (2.1 mg). Both are crucial for the pregnant mother and the developing baby. The other foods are significantly lower in these key nutrients.

Final answer: A

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 8:

Anaemia is most commonly caused by iron deficiency. To prevent anaemia, the food with the highest iron content per 100 g is the most helpful. Looking at the iron values in the table:

• Food A: 2.1 mg iron

• Food B: 0.5 mg iron

• Food C: 0.6 mg iron

• Food D: 1.4 mg iron

Food A contains the most iron (2.1 mg), making it the best choice to help prevent anaemia. While protein is not directly relevant to preventing anaemia, food A is also highest in protein, but the key factor here is iron.

Final answer: A

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 9:

We calculate the protein from each food based on the given amounts:

• Food A: 6 g protein per 100 g. Student eats 50 g → (6 ÷ 100) × 50 = 3.0 g

• Food B: 0.8 g protein per 100 g. Student eats 100 g → 0.8 g

• Food D: 3.8 g protein per 100 g. Student eats 100 g → 3.8 g

Now sum them:
3.0 + 0.8 + 3.8 = 7.6 g

Final answer: C. 7.6 grams

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.

Question 10:

Explanation:
Vitamin D plays a crucial role in helping the body absorb calcium and phosphorus, which are essential for building and maintaining strong bones.

• Scurvy is caused by a lack of vitamin C.

• Anaemia is most often caused by iron deficiency (or deficiencies in vitamin B12 or folate).

• Rickets is a disease in children caused by vitamin D deficiency, leading to soft, weak bones and skeletal deformities.

• Night blindness is caused by a deficiency of vitamin A.

Therefore, vitamin D is specifically needed to prevent rickets.

Final answer: C. Rickets

*These A.I. responses have been individually checked to ensure they match the accepted answer, but explanations may still be incorrect. Responses may give guidance but the A.I. might not be able to answer the question! This is particularly the case for questions based on diagrams, which the A.I. typically cannot interpret.
Grade Gorilla uses Gemini, Deepseek and a range of other A.I. chatbots to generate the saved responses. Some answers have had human intervention for clarity or where the A.I. has not been able to answer the question.