Across
- 3. Control center of the cell.
- 5. Hormone that regulates blood sugar levels.
- 8. The brain structure responsible for coordination and balance.
- 9. Jelly-like substance inside the cell.
- 10. Site of protein synthesis in the cell.
- 14. Smallest blood vessels where exchange of substances occurs.
- 16. Process of cell specialization.
- 17. The nerve cell that detects stimuli.
- 20. The largest part of the brain, responsible for voluntary activities.
- 23. The body's response to changes in its internal environment.
- 27. Blood vessels that carry blood away from the heart.
- 28. The part of the nervous system that includes the brain and spinal cord.
Down
- 1. Process by which plants make their own food using sunlight.
- 2. The protective covering around the axon of some neurons.
- 4. Semi-permeable membrane surrounding the cell.
- 6. Cells that transport oxygen in the blood.
- 7. Chemicals that transmit signals across a synapse.
- 9. Rigid structure providing support in plant cells.
- 11. Organ that filters blood and produces urine.
- 12. Cells that fight infections.
- 13. The neuron that sends signals to muscles.
- 15. The long fiber that carries impulses away from the cell body of a neuron.
- 18. Blood vessels that carry blood back to the heart.
- 19. Process by which cells divide to form two identical daughter cells.
- 21. Process by which cells obtain energy from glucose.
- 22. Organelle where photosynthesis occurs.
- 24. The junction between two neurons.
- 25. A segment of DNA that codes for a specific protein.
- 26. Tiny fragments in blood that help in clotting.