Which of the following is/are incorrect?
Which of the following is/are incorrect?
The correct options are
C Skin secretes lysozyme along with sweat which prevents infection.
D Some bacteria in the stomach release acids which inhibit the growth of pathogens.
Innate defence mechanism involves external and internal defence barriers. The external defense line includes the role of physical barriers like skin, mucus and chemical barriers such as sweat, oil and acidic internal secretions like HCl in the stomach.
1. Skin is made of keratinised outer epidermal cells that do not allow the entry of pathogens. Oil and sweat are basic secretions of the glands on skin which mainly inhibit the growth of the pathogens.
2. Mucus is secreted and produced by the epithelial layer in the mucous membrane lining the nasal passage. Mucus is sticky and traps incoming pathogens and also destroys them by secreting an enzyme called lysozyme.
3. Hydrochloric acid or HCl is an acidic gastric juice secreted in the stomach, which also has germicidal properties.
C
Skin secretes lysozyme along with sweat which prevents infection.
D
Some bacteria in the stomach release acids which inhibit the growth of pathogens.
Innate defence mechanism involves external and internal defence barriers. The external defense line includes the role of physical barriers like skin, mucus and chemical barriers such as sweat, oil and acidic internal secretions like HCl in the stomach.
1. Skin is made of keratinised outer epidermal cells that do not allow the entry of pathogens. Oil and sweat are basic secretions of the glands on skin which mainly inhibit the growth of the pathogens.
2. Mucus is secreted and produced by the epithelial layer in the mucous membrane lining the nasal passage. Mucus is sticky and traps incoming pathogens and also destroys them by secreting an enzyme called lysozyme.
3. Hydrochloric acid or HCl is an acidic gastric juice secreted in the stomach, which also has germicidal properties.
