biology
Across
- 4. – Gel-like substance inside a cell.
- 7. – Protein that speeds up chemical reactions.
- 13. – Organelle containing digestive enzymes.
- 14. – Process by which a cell engulfs large particles or other cells.
- 16. – Organelle responsible for photosynthesis in plant cells.
- 18. Sensing – Communication between bacterial cells using chemical signals.
- 19. – Macromolecule made of amino acids.
- 20. Fixation – Process where nitrogen gas is converted into a usable form for plants.
- 21. – Organelle containing genetic material.
- 23. – Protein that helps fight infections.
- 26. – Protein in red blood cells that carries oxygen.
- 28. – Cell division resulting in two identical cells.
- 30. – Type of cell without a nucleus.
- 32. – Cell division that produces gametes.
- 35. – Process by which plants make their own food using sunlight.
- 37. – Theory explaining the origin of mitochondria and chloroplasts in eukaryotic cells.
- 39. – Circular DNA molecule found in bacteria.
- 42. – Organelle that modifies and packages proteins.
- 43. – Network of fungal hyphae in soil or organic material.
- 44. – Cell formed by the union of two gametes.
- 45. – Type of cell with a nucleus.
- 48. – Process where cells expel substances.
- 49. – Structural polysaccharide in fungi and arthropods.
- 50. – Group of genes regulated together in prokaryotes.
Down
- 1. – Group of individuals of the same species in an area.
- 2. – First step of cellular respiration, breaking down glucose for energy.
- 3. – Basic unit of life.
- 5. – Organelle where energy production occurs.
- 6. – Organism that consumes others for energy.
- 8. – Refers to enzymes whose activity is regulated by molecules binding at a site other than the active site.
- 9. – Organism that makes its own food.
- 10. – Community of living organisms and their environment.
- 11. – Programmed cell death.
- 12. – Change in DNA sequence.
- 15. – Maintenance of a stable internal environment.
- 17. – Organelle that synthesizes proteins.
- 22. – Process where cells engulf external substances.
- 24. – Organic molecule used for long-term energy storage.
- 25. – Molecule essential for life (e.g., carbohydrates, proteins).
- 27. – Non-coding regions of a gene that are removed during RNA splicing.
- 29. – Movement of water across a membrane.
- 31. – Molecule involved in protein synthesis.
- 33. – Molecule carrying genetic instructions.
- 34. – Protective cap at the ends of chromosomes.
- 36. – Study of changes in gene expression without altering DNA sequence.
- 38. – Pores in plant leaves for gas exchange.
- 40. – Movement of particles from high to low concentration.
- 41. – Pressure exerted by water inside a plant cell against the cell wall.
- 46. – Coding region of a gene that is expressed.
- 47. – Segment of DNA that codes for a trait.