(a)(i) What is respiration? (ii) Name two types of respiration. (iii) Write in words the equation representing the type of respiration that occurs in the mu...
Question 1 Report
(a)(i) What is respiration?
(ii) Name two types of respiration.
(iii) Write in words the equation representing the type of respiration that occurs in the muscle during strenuous exercise.
(b) Name two diseases that can affect the above mentioned system.
(c) Mention the structures used for gaseous exchange in the following organisms:
(i) Amoeba
(ii) Cockroach
(iii) White mangrove
(iv) Hibiscus.
Answer Details
(a)(i) Respiration is the biochemical process by which food substances (mainly glucose) are broken down (oxidised) in living cells to release energy for the body's activities.
(ii) Two types of respiration: aerobic respiration and anaerobic respiration.
(iii) The type occurring in muscles during strenuous exercise is anaerobic respiration. In words:
Glucose \(\rightarrow\) lactic acid + energy
(b) Two diseases affecting the respiratory system: tuberculosis and pneumonia (asthma and bronchitis are also acceptable).
(c) Structures used for gaseous exchange
- (i) Amoeba: the entire cell surface membrane (general body surface).
- (ii) Cockroach: tracheae (spiracles and tracheal tubes).
- (iii) White mangrove: pneumatophores (breathing roots) with lenticels.
- (iv) Hibiscus: stomata (in leaves) and lenticels (in stem).
Download The App On Google Playstore
Everything you need to excel in your exams
