Grade 9 Biology Principles Worksheet
This worksheet covers fundamental concepts in biology principles for grade 9 students, including cell structure, biological processes, and classification.
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Grade 9 Biology Principles
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following is considered the basic unit of life?
Organ
Cell
Tissue
Molecule
2. Which organelle is responsible for generating most of the ATP (energy) in eukaryotic cells?
Nucleus
Ribosome
Mitochondrion
Endoplasmic Reticulum
3. The process by which plants convert light energy into chemical energy is called .
4. All living organisms are composed of one or more .
5. The genetic material found in all living cells is .
6. Label the following diagram of an animal cell:
7. Briefly explain the main difference between prokaryotic and eukaryotic cells.
8. All cells contain a cell wall.
True
False
9. Photosynthesis primarily occurs in the mitochondria of plant cells.
True
False
Match the organelle with its primary function.
10. Nucleus
a. Protein synthesis
11. Ribosome
b. Stores genetic material
12. Cell Membrane
c. Regulates passage of substances