(a) Difference between stomata and lenticels
| Stomata | Lenticels |
|---|---|
| They are minute openings in the epidermal layer of leaves. | They are minute openings on the surface of old woody stems. |
| Maximum transpiration occurs through stomata. | Lesser transpiration occurs through lenticels. |
(b) Difference between Guttation and Bleeding
| Guttation | Bleeding |
|---|---|
| It occurs from the edges of leaves by hydathodes in uninjured plants. | It occurs from any cut or injured part of a plant. |
| The exudate is mainly water with some dissolved mineral salts. | The exudate is mainly plant sap and sugars. |
| It occurs during early mornings or late nights. | It occurs at the time of injury. |
| It happens in certain plants like Banana, Nasturtium, Strawberry. | It occurs in all plants that have been cut or injured. |
(c) Difference between Transpiration and Evaporation
| Transpiration | Evaporation |
|---|---|
| It is the loss of water in the form of vapour from the aerial parts of the plant. | It is the loss of water from the surface of water bodies in the form of vapour. |
| It is a slow process. | It is comparatively a faster process. |