Across
- 3. The gas taken in during breathing that is needed for respiration.
- 7. The type of tooth used for cutting food.
- 9. The enzyme that breaks down proteins into amino acids.
- 12. Threadlike structures in the nucleus that contain DNA.
- 13. Enzyme that breaks down starch into sugars.
- 14. The pumping organ of the circulatory system.
- 16. The vessels that carry blood away from the heart.
- 20. The enzyme that breaks down fats into fatty acids and glycerol.
- 21. The part of the digestive system where most absorption occurs.
- 22. An alternative form of a gene (can be dominant or recessive).
- 24. The process that makes identical cells for growth and repair.
- 25. The organ that produces bile to help digest fats.
- 26. The muscular tube that connects the mouth to the stomach.
- 27. The process of taking food into the body.
- 28. The dome-shaped muscle that controls breathing movements.
- 29. Type of food molecule made of amino acids.
Down
- 1. The process that produces gametes with half the number of chromosomes.
- 2. The chemical test for sugars using a blue solution that turns orange-red when positive.
- 4. The blood vessels that carry blood towards the heart.
- 5. The organ that produces digestive enzymes and insulin.
- 6. The food type that provides long-term energy storage.
- 8. A process that releases energy from glucose using oxygen.
- 10. The base that always pairs with thymine in DNA.
- 11. The movement of air into and out of the lungs.
- 15. The process of removing undigested food from the body.
- 17. The process of breaking down large food molecules into smaller ones that can be absorbed into the blood.
- 18. Tiny air sacs in the lungs where gas exchange occurs.
- 19. The sticky red liquid that transports oxygen and nutrients.
- 23. The small finger-like projections in the small intestine that increase surface area.
- 28. The molecule that carries coded genetic information.