Across
- 2. The type of teeth used for grinding and crushing food.
- 4. What is the taking of substances, e.g., food and drink, into the body?
- 7. These structures help regulate the opening and closing of stomata.
- 8. The small intestine is lined with tiny projections called ____________, which further increase the surface area.
- 11. The function of this substance in gastric juice includes killing harmful microorganisms in food.
- 12. The by-product from photosynthesis.
- 14. The green pigment found in chloroplasts that plays a crucial role in photosynthesis.
- 17. This enzyme in the digestive system is responsible for breaking down proteins in the acid conditions.
- 18. This type of teeth is used for tearing and shredding food.
- 20. The structure in the small intestine responsible for the absorption of nutrients into the bloodstream.
- 21. The function of the gall bladder is to store and release ____________ to aid in the digestion of fats and oils.
- 22. The type of digestion that involves breaking down food into smaller pieces without a chemical change to the food molecules.
- 23. The function of this enzyme in the digestive system is to break down starch into maltose.
- 25. This is the process by which plants synthesize carbohydrates from raw materials using energy from light.
- 26. Something present in the environment in such short supply that it restricts life processes.
- 28. This ions are necessary for the synthesis of the green pigment.
- 30. The type of teeth used for biting and cutting food.
- 31. The product from photosynthesis.
- 32. This vitamin is important for calcium absorption and is produced by the skin when exposed to sunlight.
- 36. The component that regulates gas exchange in leaves, found on the leaf surface.
- 37. The role of lacteals in villi is to absorb these nutrients.
- 38. The region in the digestive system where most nutrients are absorbed.
- 39. Carbohydrates made in photosynthesis can be stored as this for future energy use.
- 40. An alkaline mixture that neutralizes the acidic mixture of food and gastric juices in the small intestine.
- 41. The process by which glucose is used in cells to provide energy.
Down
- 1. A substance used to indicate the presence of carbon dioxide and its effect on the rate of photosynthesis.
- 3. The primary function of the cuticle on a leaf.
- 5. These are the organelles in the leaf where photosynthesis primarily takes place.
- 6. The region of the digestive system where water is mainly absorbed.
- 9. Something that transport water and nutrients.
- 10. Amylase is secreted in the ____________ and acts on physical digestion in the digestive system.
- 13. The type of sugar produced in photosynthesis that is used for energy in cells.
- 14. The breakdown of large insoluble molecules into small soluble molecules.
- 15. The outermost layer of a leaf that acts as a protective barrier.
- 16. These break down fats and oils into fatty acids and glycerol.
- 19. The removal of undigested food from the body as faeces.
- 24. These increase the surface area of the small intestine for the absorption of nutrients.
- 25. These break down proteins into amino acids in the digestive system.
- 27. The layer of cells beneath the upper epidermis in a leaf that contains chloroplasts.
- 29. Air-filled spaces in the leaf that aid in gas exchange during photosynthesis.
- 33. These ions are essential for making amino acids.
- 34. Scurvy is caused by a deficiency of this vitamin.
- 35. The organ that produces amylase, trypsin, and lipase, which act in the digestive system.
- 38. This sugar is used for transport in the phloem and attracting insects for pollination.