ICSE Class 9 Answered
(A) Write the role of the following enzymes:
1. Pepsin
2. Trypsin
3. Lipase
4. Rennin
5. Sucrase
(B) The given figure shows the section of mammalian tooth.
1. Label parts 1 to 8.
2. Which is the hardest part of the tooth?
3. Which part of the tooth is living?
1. Label parts 1 to 8.
2. Which is the hardest part of the tooth?
3. Which part of the tooth is living?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(A)
1. Pepsin: Converts proteins into proteoses and peptones
2. Trypsin: Hydrolyses proteins into peptones and polypeptides
3. Lipase: Hydrolyses fats into fatty acids and glycerol
4. Rennin: Converts milk protein caseinogen into insoluble casein
5. Sucrase: Hydrolyses sucrose into monosaccharides
(B)
1. 1-Enamel; 2-Dentine; 3-Blood capillaries; 4-Gum; 5 Cement; 6-Jaw bone; 7-Neck; 8-Pulp
2. Enamel is the hardest part of the tooth.
3. Pulp containing blood capillaries is the living part of the tooth.
Answered by | 04 Jun, 2014, 03:23: PM
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