Quiz on Basic Food Science and Nutrition - Protein

What percentage of body weight is approximately constituted by proteins?

• 10%

• 16%

• 25%

• 30%

Which of the following is NOT a basic element of amino acids?

• Calcium

• Oxygen

• Hydrogen

• Carbon

What type of amino acids cannot be synthesized by the body?

• Essential amino acids

• Non-essential amino acids

• Conditional amino acids

• Transitional amino acids

Which structure of protein is described as the three-dimensional shape?

• Primary structure

• Secondary structure

• Tertiary structure

• Quaternary structure

What type of protein is characterized by being rounded in shape and soluble in water?

• Globular proteins

• Fibrous proteins

• Transport proteins

• Structural proteins

Which of the following is an example of a fibrous protein?

• Ovalbumin

• Keratin

• Haemoglobin

• Myoglobin

What is the primary role of proteins in the body?

• Hormone production

• Fat metabolism

• Structural support

• Energy storage

Which method is used to estimate protein requirements based on nitrogen balance?

• Biological value

• Factorial method

• Chemical score

• Protein efficiency ratio

What is the maximum value of Protein Digestibility Corrected Amino Acid Score (PDCAAS)?

• 3.0

• 2.0

• 1.0

• 0.5

Which condition is characterized by a shortage of protein quality and quantity?

• Anemia

• Obesity

• Kwashiorkor

• Marasmus