Cell structure and function quiz online

🔬 Quick Study Guide

• 🧬 Cells are the basic units of life.
• 🧱 The two main types of cells are prokaryotic and eukaryotic.
• 🦠 Prokaryotic cells lack a nucleus and other membrane-bound organelles (e.g., bacteria).
• 🌱 Eukaryotic cells have a nucleus and other membrane-bound organelles (e.g., animal and plant cells).
• 🧠 Key organelles include the nucleus (control center), mitochondria (energy production), ribosomes (protein synthesis), endoplasmic reticulum (protein and lipid synthesis), Golgi apparatus (protein modification and packaging), lysosomes (waste disposal), and vacuoles (storage).
• 🌿 Plant cells also have chloroplasts (photosynthesis) and a cell wall (structure and support).
• 🚦 Cell membrane controls what enters and exits the cell.

🧪 Practice Quiz

1. Which of the following is NOT a characteristic of prokaryotic cells?
   1. A. Absence of a nucleus
   2. B. Presence of membrane-bound organelles
   3. C. Small size
   4. D. Simple structure
2. Which organelle is responsible for energy production in eukaryotic cells?
   1. A. Ribosome
   2. B. Endoplasmic Reticulum
   3. C. Mitochondrion
   4. D. Golgi Apparatus
3. What is the main function of ribosomes?
   1. A. Lipid synthesis
   2. B. Protein synthesis
   3. C. Waste disposal
   4. D. Energy production
4. Which organelle modifies and packages proteins?
   1. A. Lysosome
   2. B. Endoplasmic Reticulum
   3. C. Golgi Apparatus
   4. D. Vacuole
5. Which of the following is found in plant cells but not animal cells?
   1. A. Mitochondria
   2. B. Nucleus
   3. C. Cell Wall
   4. D. Cell Membrane
6. What is the function of the cell membrane?
   1. A. To control what enters and exits the cell
   2. B. To produce energy
   3. C. To synthesize proteins
   4. D. To store waste
7. Which organelle is responsible for photosynthesis in plant cells?
   1. A. Mitochondria
   2. B. Chloroplast
   3. C. Vacuole
   4. D. Nucleus