Which method listed below is considered a biological approach to preserving food?
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(A) Freezing
(B) Fermentation
(C) Dehydration
(D) Canning
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What is the purpose of using food additives?
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(A) Improve the nutritional value of food
(B) Preserve food and extend its shelf life
(C) Enhance the taste and appearance of food
(D) All of the above
What substances are commonly used to preserve foods by lowering their pH levels?
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(A) Acids
(B) Antioxidants
(C) Emulsifiers
(D) Enzymes
Which of the following is considered an essential amino acid?
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(A) Alanine
(B) Glycine
(C) Lysine
(D) Proline
What does the sequence of amino acids in a specific protein determine?
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(A) Shape and function
(B) Color and taste
(C) Size and weight
(D) Smell and texture
Which of the following is definitely not a protein?
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(A) Hemoglobin
(B) Keratin
(C) Glucose
(D) Insulin
Which of the following food items is the richest source of protein?
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(A) Apple
(B) Chicken breast
(C) White bread
(D) Carrot
What is a balanced diet?
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(A) A diet that contains only fruits and vegetables
(B) A diet that includes high amounts of carbohydrates and fats
(C) A diet that provides all essential nutrients in the right proportions
(D) A diet that focuses solely on protein intake
Which of the following is an essential element of a balanced diet?
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(A) Vitamins and minerals
(B) Sugary foods
(C) Fats
(D) Processed foods
Which nutrient serves as the main source of energy in a balanced diet?
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(A) Protein
(B) Carbohydrates
(C) Fats
(D) Vitamins
