Basic Biochemistry Concepts Quiz

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Questions and Answers

Which of the following elements must be present in all biochemicals?

  • Carbon and hydrogen (correct)
  • Carbon and oxygen
  • Hydrogen and nitrogen
  • Oxygen and nitrogen

Why are water and carbon dioxide categorized as inorganic?

  • Carbon dioxide lacks hydrogen and oxygen
  • Water lacks carbon and hydrogen (correct)
  • Carbon dioxide lacks carbon and hydrogen
  • Water lacks carbon and oxygen

What are the building blocks of complex compounds like carbohydrates, lipids, proteins, and nucleic acids?

  • Macromolecules
  • Monomers (correct)
  • Polymers
  • Carbohydrates

What are the long term energy resources for humans?

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

What are the main components of lipids?

<p>Carbon, hydrogen, and oxygen (B)</p> Signup and view all the answers

What is the difference between saturated and unsaturated fats?

<p>Saturated fats have single carbon bonds, unsaturated fats have double carbon bonds (B)</p> Signup and view all the answers

What determines the function of a protein?

<p>Shape of protein and types of amino acids bonded (D)</p> Signup and view all the answers

What are enzymes also called?

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

What is the effect of high temperature on enzymes?

<p>Denatures (deforms) the enzyme (B)</p> Signup and view all the answers

How can organic compounds be combined?

<p>Dehydration synthesis (removing water to combine together) (B)</p> Signup and view all the answers

What are the main components of carbohydrates?

<p>Carbon, hydrogen, and oxygen (D)</p> Signup and view all the answers

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Study Notes

Biochemicals

  • Carbon, hydrogen, oxygen, and nitrogen are essential elements present in all biochemicals.

Classification of Compounds

  • Water and carbon dioxide are categorized as inorganic compounds because they do not contain carbon-hydrogen bonds.

Building Blocks of Complex Compounds

  • Monosaccharides, fatty acids, amino acids, and nucleotides are the building blocks of carbohydrates, lipids, proteins, and nucleic acids, respectively.

Energy Resources

  • Fossil fuels, such as coal, oil, and natural gas, are the long-term energy resources for humans.

Lipid Structure

  • The main components of lipids are glycerol and fatty acids.

Fatty Acids

  • Saturated fats have single bonds between carbon atoms, while unsaturated fats have one or more double bonds between carbon atoms.

Protein Function

  • The function of a protein is determined by its specific shape and chemical properties.

Enzymes

  • Enzymes are also called biological catalysts.

Temperature Effects on Enzymes

  • High temperatures can denature enzymes, leading to a loss of their biological function.

Combining Organic Compounds

  • Organic compounds can be combined through condensation reactions, which involve the loss of a water molecule.

Carbohydrate Structure

  • The main components of carbohydrates are carbon, hydrogen, and oxygen atoms, typically in a ratio of 1:2:1.

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