Prokaryotic Cell Structure and Function
Explore the fundamental characteristics, structures, and functions of prokaryotic cells with this comprehensive worksheet for Grade 9 science students.
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Prokaryotic Cell Structure and Function
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Read each question carefully and provide your best answer. Refer to your knowledge of prokaryotic cells.
1. Which of the following is a characteristic of prokaryotic cells?
Presence of a true nucleus
Membrane-bound organelles
Circular DNA in the cytoplasm
Larger and more complex than eukaryotic cells
2. What is the primary function of the cell wall in a prokaryotic cell?
Protein synthesis
Maintaining cell shape and protection
Energy production
Genetic information storage
3. Prokaryotic cells lack a true nucleus and other organelles.
4. The genetic material of a prokaryotic cell is typically a single, circular molecule located in the cytoplasm.
5. Many prokaryotes have a whip-like appendage called a that aids in movement.
6. Observe the diagram of the bacterial cell below. Label the indicated parts.
7. Briefly explain the main difference between prokaryotic and eukaryotic cells regarding their internal organization.
8. All prokaryotic cells have a capsule surrounding their cell wall.
True
False
9. Ribosomes are present in prokaryotic cells and are responsible for protein synthesis.
True
False
Match each prokaryotic cell structure with its primary function.
10. Plasmid
a. Contains essential genetic information
11. Nucleoid
b. Small, circular DNA molecules carrying non-essential genes
12. Pili
c. Adhesion to surfaces and other cells