Biological Molecules Lesson

​Biological Molecules

• ​Biological molecules are complex chemicals

• Produced by cells and living organisms​

• Biomolecules have a wide range of sizes and structures and are needed by living organisms for metabolism.​

• ​These molecules can be very large often constructed of repeating sub-units.

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Major ​Elements that make up Biomolecules

• ​Carbon

• ​Hydrogen

• Oxygen​

• ​Nitrogen

Multiple Choice

Which of following is NOT a major element involved in making biomolecules?

• Calcium

• Nitrogen

• Hydrogen

• Carbon

​Types of Biological Molecules

​

• ​Lipids

• ​Carbohydrates

• ​Proteins

• ​Nucleic Acids

​What do they do?

• ​LIPIDS

  • Cell membrane structure, energy storage

• CARBOHYDRATES​

  • ​Source of energy, structural component

• ​PROTEINS

  • ​Building block, reactions, repair

• ​NUCLEIC ACIDS

  • ​Genetic material

​Some key terms -

Multiple Select

Which of the following statements correctly describe biological molecules? Chooses all the correct statements.

• They all contains carbon and are described as organic molecules.

• There are four major types namely carbohydrates, fats, proteins and nucleic acid.

• It is produced by living organisms.

• All biological molecules are of the same structure.

Multiple Choice

Select the type of molecule that is used as energy store molecules

• potein

• lipid

• carbohydrate

• nucleic acid

Multiple Choice

Select the type of molecule that stores genetic information

• potein

• lipid

• carbohydrate

• nucleic acid

Open Ended

What is one question you have about biological molecules?