Amino Acids and Nutrition

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Questions and Answers

What is the primary function of heat energy in the body?

  • To break down amino acids
  • To produce proteins
  • To synthesize fats
  • To replenish the body's energy (correct)

What is the result of two amino acids reacting with each other in an acid-base reaction?

  • An amino acid is broken down
  • A polypeptide is synthesized
  • A protein is formed
  • A peptide is created (correct)

What is the term for a chain of 50 or more amino acids?

  • Peptide
  • Protein (correct)
  • Amino acid
  • Polypeptide

What is the percentage of the human body's mass made up of proteins?

<p>10% - 20% (C)</p> Signup and view all the answers

How many amino acids can be synthesized by the body?

<p>11 (B)</p> Signup and view all the answers

What is the term for a lack of protein and calorie intake, often affecting children in underdeveloped countries?

<p>Protein Energy Malnutrition (D)</p> Signup and view all the answers

What is the primary function of lipids in cell membranes?

<p>To control the movement of molecules in and out of cells (A)</p> Signup and view all the answers

What is the process by which lipids are formed from excess carbohydrates in the diet?

<p>Lipogenesis (B)</p> Signup and view all the answers

What is the characteristic of lipids that determines their ability to group together?

<p>Hydrophobic nature (B)</p> Signup and view all the answers

What is the chemical reaction that uses water to break down a compound, such as triglycerides, into their constituent parts?

<p>Hydrolysis (D)</p> Signup and view all the answers

What is the effect of double bonds on the melting point of a lipid?

<p>It decreases the melting point (C)</p> Signup and view all the answers

What is the main difference between fats and oils?

<p>Fats are solid, oils are liquid (D)</p> Signup and view all the answers

What is the most abundant form of lipid in the body?

<p>Triglycerides (D)</p> Signup and view all the answers

What is the primary function of cholesterol in the body?

<p>To maintain cell membrane fluidity (A)</p> Signup and view all the answers

What type of lipids are composed of fused rings of atoms?

<p>Steroids (C)</p> Signup and view all the answers

What is the result of high levels of cholesterol in the blood?

<p>Deposits in the heart's arteries (D)</p> Signup and view all the answers

What is the structural classification of triglycerides?

<p>Neutral fats (D)</p> Signup and view all the answers

What is a function of triglycerides in the body?

<p>To transport fat-soluble nutrients (C)</p> Signup and view all the answers

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