Page No 101:
Question 1:
What are the differences between autotrophic nutrition and heterotrophic nutrition?
Autotrophic nutrition | Heterotrophic nutrition | ||
(i) | Food is synthesised from simple inorganic raw materials such as CO2 and water. | (i) | Food is obtained directly or indirectly from autotrophs. This food is broken down with the help of enzymes. |
(ii) | Presence of green pigment (chlorophyll) is necessary. | (ii) | No pigment is required in this type of nutrition. |
(iii) | Food is generally prepared during day time. | (iii) | Food can be prepared at all times. |
(iv) | All green plants and some bacteria have this type of nutrition. | (iv) | All animals and fungi have this type of nutrition. |
