🔍 Part 1: Cell Theory & Structure Hunt

1. According to cell theory, all living things are made of _______ and all cells come from ________________.

2. Which organelle is known as the "powerhouse of the cell"?

Nucleus

Mitochondria

Ribosome

Endoplasmic reticulum

3. Check ALL structures found ONLY in plant cells:

Cell wall

Chloroplasts

Large central vacuole

Mitochondria

Nucleus

4. The ______________ controls what enters and exits the cell, while the ______________ controls all cell activities.

5. Which organelle is responsible for protein synthesis?

Golgi apparatus

Lysosomes

Ribosomes

Vacuoles

📝 Part 2: Function & Analysis

6. Explain how the structure of mitochondria (with its folded inner membrane) relates to its function in cellular respiration:

7. A cell is observed to have many ribosomes and a well-developed endoplasmic reticulum. What can you infer about this cell's primary function?

8. Compare and contrast prokaryotic and eukaryotic cells. List TWO similarities and TWO differences:

Similarities:

Differences:

🎯 Part 3: Cell Detective Challenge

9. You discover a new single-celled organism. It has a nucleus, mitochondria, and what appears to be a contractile vacuole that pumps out excess water. Based on these observations, classify this organism and explain your reasoning:

10. Design Challenge: If you could engineer a new organelle for a cell, what would it do and why would it be beneficial? Describe its structure and function: