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Organic Molecules Worksheet

This worksheet covers fundamental concepts of organic molecules, including their definition, major types, and basic structures, suitable for Grade 9 Science students.

Grade 9 Science ChemistryOrganic Molecules
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Includes

Multiple ChoiceFill in the BlanksTrue / FalseShort AnswerImage

Standards

HS-PS1-1HS-LS1-6

Topics

organic chemistrybiomoleculesmacromoleculesgrade 9 science
7 sections · Free to use · Printable
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Organic Molecules Worksheet

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Read each question carefully and answer to the best of your ability. Show all your work for calculations.

1. Which element is the primary component of all organic molecules?

a

Oxygen

b

Carbon

c

Nitrogen

d

Hydrogen

2. Which of the following is NOT a major type of organic molecule found in living organisms?

a

Carbohydrates

b

Lipids

c

Water

d

Proteins

3. Organic molecules are primarily composed of   and hydrogen atoms.

4. The building blocks of proteins are called  .

5. All organic molecules are large macromolecules.

T

True

F

False

6. Lipids are generally soluble in water.

T

True

F

False

7. Briefly explain why carbon is essential for the formation of organic molecules.

8. Name the four major classes of organic molecules found in living systems and provide one function for each.

Observe the image of an organic molecule below.

Numbered organic molecule

9. Based on its structure, which class of organic molecules do you think this molecule might belong to? Justify your answer.