Biology: Proteins and Amino Acids

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Questions and Answers

What are the four classes of atoms that form the molecules of proteins?

  • Carbon, Hydrogen, Oxygen, Iron
  • Helium, Oxygen, Nitrogen, Phosphorus
  • Carbon, Oxygen, Nitrogen, Sulfur
  • Carbon, Hydrogen, Oxygen, Nitrogen (correct)

What is the result of the condensation of many amino acid molecules?

  • A protein molecule (correct)
  • A carbohydrate molecule
  • A nucleic acid molecule
  • A lipid molecule

How many different amino acids are known?

  • 15
  • 20 (correct)
  • 25
  • 10

What is a characteristic of amino acids?

<p>They are soluble in water (D)</p> Signup and view all the answers

What is a characteristic of proteins?

<p>They are always specific to each species (A)</p> Signup and view all the answers

Why do different species of living organisms have different hemoglobins?

<p>Because they are different species (C)</p> Signup and view all the answers

What is the calorie value of proteins per gram?

<p>5.3 Kcal/gr (D)</p> Signup and view all the answers

What is the location of Hemoglobin?

<p>Blood, inside red blood cells (A)</p> Signup and view all the answers

What is the function of Miosina and Actina?

<p>To build muscles and provide contraction (D)</p> Signup and view all the answers

What is the function of Colágeno?

<p>To build bones, cartilages, tendons and ligaments (A)</p> Signup and view all the answers

What is a characteristic of proteins?

<p>They are solids and are insipid (D)</p> Signup and view all the answers

Which protein is insoluble in water?

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

What type of protein is found in blood plasma?

<p>Fibrina (A)</p> Signup and view all the answers

Which of the following is NOT a type of Andean grain?

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

What is the name of the protein found in egg whites?

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

Which of the following is a type of fish?

<p>Anchoveta (A)</p> Signup and view all the answers

What is the name of the protein found in muscles?

<p>Actina (A)</p> Signup and view all the answers

Which of the following is a type of nut?

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

What is the main difference between the proteins of two individuals of the same species?

<p>They are never identical, except for univitelino twins (B)</p> Signup and view all the answers

What occurs to proteins during the digestion process?

<p>They break down into amino acids (C)</p> Signup and view all the answers

What is the result of desnaturalización?

<p>Proteins lose their biological activity (D)</p> Signup and view all the answers

What are some examples of agents that can cause desnaturalización?

<p>Heat, ultraviolet light, and strong agitation (C)</p> Signup and view all the answers

Which of the following amino acids is mentioned in the text?

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

What is unique about the proteins of univitelino twins?

<p>They are genetically identical (D)</p> Signup and view all the answers

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