Life processes and nutrition - Question Bank
1. What is the primary function of the circulatory system in relation to life processes?
2. The exchange of gases (oxygen and carbon dioxide) occurs in which part of the plant during photosynthesis?
3. Which of the following completes the process of digestion in humans?
4. The role of enzymes in digestion is to:
5. Which organism obtains nutrients by breaking down dead and decaying organic matter?
6. The process of converting light energy into chemical energy in plants is:
7. Iodine is crucial for the proper functioning of the:
8. Iron is a vital mineral required for the formation of:
9. Minerals are inorganic substances that are essential for:
10. Water is essential for life as it:
11. Rickets, a condition characterized by soft bones, is caused by a deficiency of which vitamin?
12. Which vitamin deficiency causes scurvy?
13. Vitamins are required in small amounts and play crucial roles in:
14. Which type of nutrient provides the most concentrated source of energy?
15. Fats are broken down into:
16. Which nutrient is essential for building and repairing tissues?
17. Which of the following is a primary source of proteins?
18. Which of the following is a source of carbohydrates?
19. The removal of undigested food material from the body is called:
20. The process of utilizing absorbed food molecules for energy, growth, and repair is called:
21. The process of taking in food is called:
22. Which vitamin is synthesized by bacteria in the large intestine?
23. What is the main function of the large intestine?
24. The inner lining of the small intestine is folded into numerous finger-like projections called:
25. The primary site for the absorption of digested nutrients in humans is the:
26. Which of the following is NOT a digestive enzyme secreted by the pancreas?
27. The pancreas secretes digestive enzymes into the:
28. Bile salts aid in the digestion and absorption of:
29. The liver produces bile, which is stored in the:
30. Which substance is secreted by the stomach lining to aid in protein digestion and protect the stomach wall?
31. What is the primary function of the stomach?
32. The muscular tube connecting the pharynx to the stomach is called the:
33. Which enzyme, found in saliva, begins the digestion of carbohydrates?
34. In humans, digestion begins in the:
35. The process of breaking down complex food substances into simpler molecules that can be absorbed by the body is known as:
36. Which of the following is an example of a heterotroph?
37. Which of the following is an example of an autotroph?
38. Organisms that can produce their own food using inorganic substances are called:
39. Humans are classified as which type of organism based on their mode of nutrition?
40. Muscle fatigue during strenuous exercise is often due to the accumulation of:
41. Anaerobic respiration in yeast produces:
42. What is the energy currency of the cell, produced during respiration?
43. The end products of aerobic cellular respiration are:
44. What is the primary function of cellular respiration?
45. In which part of the plant cell does cellular respiration primarily occur?
46. The chemical equation for photosynthesis is often summarized as:
47. Which gas is released as a byproduct during photosynthesis?
48. What is the main pigment responsible for capturing light energy during photosynthesis?
49. The process by which green plants use sunlight, water, and carbon dioxide to create their own food is called:
50. Which of the following is the primary site of photosynthesis in plant cells?