Macromolecules and Enzyme Activity Quiz
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Questions and Answers

What is the enzyme produced in the stomach responsible for protein digestion?

  • Amylase
  • Trypsin
  • Lipase
  • Pepsin (correct)

What are the subunits of proteins?

  • Amino acids (correct)
  • Glycerol
  • Fatty acids
  • Glucose

What are the subunits of carbohydrates?

  • Fatty acids
  • Glycerol
  • Amino acids
  • Glucose (correct)

What are the subunits of fats?

<p>Glycerol and fatty acids (D)</p> Signup and view all the answers

What process forms large molecules from smaller building blocks?

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

What is the optimal pH for pepsin activity?

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

What color does the biuret reagent turn when protein is digested in the 'Digestion of Protein' experiment?

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

What are the subunits of carbohydrates?

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

What are the subunits of fats?

<p>Glycerol and Fatty Acids (A)</p> Signup and view all the answers

What process forms large molecules from smaller building blocks?

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

Flashcards

Protein digestion enzyme

Pepsin is the enzyme produced in the stomach.

Protein subunits

Amino acids are the building blocks of proteins.

Carb subunits

Glucose is the subunit of carbohydrates.

Fat subunits

Glycerol and fatty acids are the subunits of fats.

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Large molecules from small

Dehydration synthesis joins small molecules into large ones.

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Pepsin's pH

Acidic pH is optimal for pepsin.

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Biuret reagent color

Protein digestion gives a purple color with the biuret reagent.

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Carbohydrate subunits

Glucose units.

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Fat subunits

Glycerol and fatty acids.

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Dehydration synthesis

Forming larger molecules by removing water.

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Study Notes

Enzymes and Digestion

  • Pepsin is the enzyme produced in the stomach that is responsible for protein digestion.
  • Optimal pH for pepsin activity is around 1.5 to 2, which creates an acidic environment for effective protein breakdown.

Protein Subunits

  • Proteins are composed of amino acids, which are the basic building blocks of proteins.
  • There are 20 different amino acids that combine in various sequences to form proteins.

Carbohydrate Subunits

  • Carbohydrates are made up of monosaccharides, the simplest form of carbohydrates.
  • Common monosaccharides include glucose, fructose, and galactose.

Fat Subunits

  • Fats, or lipids, are primarily composed of fatty acids and glycerol.
  • Triglycerides, the most common type of fat, consist of three fatty acids bonded to one glycerol molecule.

Synthesis of Macromolecules

  • Polymerization is the process that forms large molecules (macromolecules) from smaller building blocks like amino acids, monosaccharides, and fatty acids.

Experiment Observations

  • In the "Digestion of Protein" experiment, the biuret reagent turns purple when proteins are digested, indicating the presence of peptides or amino acids.

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Description

Test your knowledge of enzymes, protein subunits, carbohydrates, and fats in this quiz. Explore the effects of pH on enzyme activity and understand the subunits of different macromolecules. Challenge yourself with questions about dehydration synthesis and hydrolysis processes.

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