Protein

Multiple Choice

What type of nutrient is protein classified as?

• Micronutrient

• Macronutrient

• Mineral

• Vitamin

Multiple Choice

Do all foods contain the same percentage of protein?

• Yes, all foods have the same percentage

• No, it varies enormously

• Yes, but only in animal foods

• No, it is always low

Multiple Choice

What is the primary function of protein in the body?

• Supply of amino acids

• Provide vitamins

• Supply carbohydrates

• Provide minerals

Multiple Choice

How much energy does one gram of protein provide?

• 2 kcal

• 4 kcal

• 6 kcal

• 8 kcal

Multiple Choice

What are examples of rich protein sources mentioned in the text?

• Soya, fish meal, meat meal

• Wheat, corn, rice

• Fruits, vegetables, nuts

• Milk, cheese, yogurt

Multiple Choice

Why are plant-based protein sources generally preferred?

• They are more nutritious

• They are cheaper

• They are more flavorful

• They are easier to digest

Multiple Choice

What happens to the protein in grass when Autumn sets in?

• It becomes more digestible

• It becomes less digestible

• It increases in quantity

• It becomes sweeter

Multiple Choice

What determines the function of a protein?

• Its weight

• Its sequence of amino acids

• Its temperature

• Its pH level

Multiple Choice

Which of the following is NOT a function of muscle?

• Movement

• Supporting the skeleton

• Producing energy

• Protecting organs

Multiple Choice

Which of the following is NOT a structural component mentioned in the text?

• Hair

• Feathers

• Bones

• Cartilage

Multiple Choice

What are hormones?

• Proteins that transmit information

• Carbohydrates that store energy

• Lipids that form cell membranes

• Nucleic acids that store genetic information

Multiple Choice

What is the primary function of hormones?

• Transmit information

• Store energy

• Form cell membranes

• Replicate DNA

Multiple Choice

Hormones are primarily composed of which type of macromolecule?

• Proteins

• Carbohydrates

• Lipids

• Nucleic acids

Multiple Choice

Which of the following is a consequence of too much protein in an animal's diet?

• Anaemia

• Obesity

• Muscle wastage

• Skin disorders

Multiple Choice

Which condition is NOT caused by too little protein?

• Anaemia

• Weight loss

• Improved immunity

• Muscle wastage

Multiple Choice

During which life stage does an animal require an increased amount of protein for growth?

• Hibernation

• Pregnancy

• Growth

• Lactation

Multiple Choice

Which of the following is a reason for increased protein needs due to physical activity?

• Formation of antibodies

• Increased physical activity

• Repair of damaged tissue

• Preparation for hibernation

Multiple Choice

Which of the following is a source of protein?

• Bread

• Fish

• Rice

• Apples

Multiple Choice

What does the primary structure of a protein refer to?

• The sequence of amino acids on a polypeptide chain

• The coiling of an amino acid chain into a helix

• The complex 3D folded polypeptide chain

• The linking of multiple polypeptide chains

Multiple Choice

Which protein structure level involves the coiling of an amino acid chain into a helix or pleated sheets?

• Primary structure

• Secondary structure

• Tertiary structure

• Quaternary structure

Multiple Choice

What is the tertiary structure of a protein?

• The sequence of amino acids

• The coiling into a helix

• The complex 3D, irregular folded polypeptide chain

• The linking of multiple polypeptide chains

Multiple Choice

Which structure level of proteins involves the linking of multiple polypeptide chains?

• Primary structure

• Secondary structure

• Tertiary structure

• Quaternary structure

Multiple Choice

What example is given for a protein with a quaternary structure?

• Insulin

• Hemoglobin

• Collagen

• Keratin

Multiple Choice

What example is given for a protein with a quaternary structure?

• Hemoglobin

• Insulin

• Collagen

• Keratin

Multiple Choice

What are the building blocks of all proteins?

• Carbohydrates

• Lipids

• Amino acids

• Nucleic acids

Multiple Choice

Why is it not advisable to feed a cat a vegetarian or vegan diet?

• Cats dislike vegetables.

• Cats require taurine and arginine found only in meat.

• Cats are allergic to plants.

• Cats need more carbohydrates.

Multiple Choice

What are non-essential amino acids required for?

• To produce carbohydrates

• To produce proteins

• To produce lipids

• To produce vitamins

Multiple Choice

Which amino acid is classified as essential?

• Glutamine

• Arginine

• Hydroxyproline

• Tyrosine

Multiple Choice

What are the two main groups present in all amino acids?

• Hydroxyl group and methyl group

• Amino group and carboxyl group

• Phosphate group and sulfhydryl group

• Carbonyl group and aldehyde group

Multiple Choice

What is unique to each amino acid?

• The amino group

• The carboxyl group

• The R group

• The hydrogen atom

Multiple Choice

What fills the remaining two bonds of the central carbon atom in an amino acid?

• Two hydrogen atoms

• An R group and a hydrogen atom

• Two R groups

• Two carboxyl groups

Multiple Choice

What is a dipeptide?

• Two amino acids joined together

• Three amino acids joined together

• A single amino acid

• A chain of five amino acids

Multiple Choice

What are polypeptides?

• Short chains of amino acids

• Long chains of hundreds of amino acids

• Chains of carbohydrates

• Chains of lipids