Topic-5
Biology
1. By what age the first human teeth come ? – 6 to 8 months
2. By what age the human teeth are replaced ? – 6 years
3. What is the hardest part in the human body ?-Tooth Enamel
4. Which type of teeth are the elephant tusks ?- Incisors
5. Which animal have the maximum number of teeth ?- Horse and Pig
6. How many teeth are there in a human child ?- 20
7. How many teeth are there in the horse ?-44
8. Where are the salivary glands located in the human body that secretes Saliva ?- Tongue
9. Which kind of nutrition does the man have ?-Holozoic Nutrition i.e. solid form of nutrition
10. What is the food pipe called ?- Oesophagus
11. Which chemical in the human stomach digests protein ?-Pepsin
12. What converts milk into curd ? –Rennin (Enzyme)
13. What is the term given to the digested food ? – Chyme
14. What is the name of the starch spitting enzyme of Salivary gland?- Ptyalin
15. Which chemical helps in digestion of fat ?- Bile
16. Where is the bile stored in the human body ?- Gall Bladder. It is released by Liver .
17. Which chemical breaks the protein into polypeptides and digests food into amino acids ?-Trypsin
18. Which chemical converts starch into simple sugar ?- Amylase
19. Which chemical converts fat into fatty acid and glycerol ?- Lipase
20. The _______ is about 3.5 metres (11.5 feet) long (or about three-fifths the length of the small intestine) and extends from the jejunum (the middle section of the small intestine) to the ileocecal valve, which empties into the colon (large intestine)- Ileum
21. Some Intestinal juices and their working :
I. Maltase converts maltose into glucose.
II. Lactase converts lactose into glucose.
III. Sucrase converts sucrose into glucose and fructose.
IV. Trypsin digests the peptides into amino acids.
22. What are the finger like structures that are found inside the inner surface of the Ileum ?- Villi
23. What is the nature of the intestinal juices ?- Alkaline
24. pH of various juices :
I. pH of Saliva – 6.8
II. pH of Gastric juices- 2.0
III. pH of Pancreatic juices – 7.0
IV. pH of the Intestinal juice – 8.5
25. Which part of the body absorbs large amount of water ?- Large Intestine
26. What is the largest gland in the human body ? – Liver
27. Glucose is converted into which chemical by liver ?- Glycogen
28. Functions of Liver :
I. It destroys dead RBC and regulates body temperature.
II. It converts excessive amino acid into ammonia.
III. Investigation of death due to poison is checked through liver dysfunction.
29. Which disease is caused due to the malfunctioning of liver ?-Jaundice
30. Through which organ of body urea comes out ?- Kidney
31. Which is the second largest gland in the human body ?-Pancreas
32. Pancreas releases enzymes that help in the digestion of which bio-molecules ? – Carbohydrates , Protein and Nucleic Acid
33. Which human body organ releases β cells that releases insulin for digestion of glucose ?- Pancreas
34. Which disease is caused due to deficiency in the release of insulin ?-Diabetes /Hyperglycemia
35. Which disease is caused due to excessive release of insulin ?- Hypoglycemia
36. Name of the two intestinal glands :- Lieberkuhn and Brunner Glands
37. Name the animals which have lungs for respiration ?
· Reptiles like Lizard
· Mammals like Man , Camel and Cattle
38. Name the animals that breathe through Skin – Frog, Earthworm and Leeches
39. Name the animal that breathe through Gills – Fishes, Tadpoles and Prawns
40. Name the animals that breathes through Trachea – Insects , Centipedes , Human Beings and Millipedes
41. Name the animal that breathes through body surface ?- Amoeba
42. Name the animals that have air sacks to breathe ?- Birds
43. Name the organs of the Human Respiratory System :
· Epiglotis
· Larynyx
· Trachea
· Pleural Membranes
· Alveoli
· Pleural Fluid Boronchiole
· Diaphragm
· Lung
· Cut end of Rib
· Bronchus
44. Which kind of respiration takes place in the presence of oxygen ?- Aerobic Respiration
45. What is released when glucose and oxygen meet ?- Carbon Dioxide, Water and Energy
46. During which process the each glucose is converted into two molecules ? –Glycolysis
47. Which acid is used in the process of Glycolysis ?- Pyruvic Acid
48. In which part of the cell the process of Glycolysis takes place ?- Cytoplasm
49. Under which cycle the sequence of reactions is studied by which most living cells generate energy during the process of aerobic respiration ?- Kerb’s Cycle
50. Which kind of respiration takes place in the absence of oxygen ?-Anaerobic Respiration