HOLIDAY HOMEWORK CLASS: XI BIOLOGY 1. What is fungi imperfecti? Give out line classification of kingdom fungi? 2.. Why yeast is considered to be odd one out from the group of fungi? 3. What are vital capacity and functional residual capacity? What is the difference in solubility(in plasma) of CO2 as compare to O2 ? 4. Diagrammatically indicate the location of various endocrine glands in our body. 5. Make a neat and labelled diagram to show mechanism of hormone action of a steroid hormone. 6. Label the diagram. 7. Compare the salient features of Monera and protista. 8. Explain in detail the location , function and hormone produced by the following endocrine glands.(a) pituitary gland (b) pineal gland (c) thyroid (d) parathyroid (e) thymus. 9. Explain in detail the location, function and hormone produced by the following endocrine glands. (a) adrenal gland (b) pancreas (c) testis (d) ovary 10. Bile juice contains no digestive enzymes, yet it is important for digestion. Why? 11. Why are bryophytes called the amphibians of the plant kingdom? 12. State the role of pancreatic juice in digestion of proteins . 13. An elderly woman slipped in the bathroom and had severe pain in her lower back. After Xray examination doctors told her it is due to a slipped disc. What does that mean? How does it affect our health? 14. Distinguish between (a) IRV and ERV (b) Inspiratory capacity and Expiratory capacity (c) Vital capacity and Total lung capacity. 15. Draw a labelled diagram showing reabsorption and secretion of major substances at different parts of the nephron. 16. Name the enzyme secreted by the stomach of infants. What is the role of same enzyme in digestion? 17. What is cardiac cycle? Describe various steps of cardiac cycle with reference of heart sounds. 18. Why is the spleen known as blood bank? 19. Why slime moulds are called as fungus-animals? 20. Name the enzyme secreted by the digestive system of a man to digest proteins in acidic and alkaline medium. 21. Name any one cranial nerve that controls eye ball movement. Is this nerve a sensory, a motor or a mixed one? Give the total number of pairs of motor and sensory nerves in a human being. 24. What are tidal volume and vital capacity? List any two categories of people which possess higher vital capacity. 25. Give the full form of ADH. Name the gland that secretes it. It is released under what condition of the body? What is its role in forming hypertonic urine? What is the disease caused due to the failure of its secretion?