Among the terms listed below, those that are not technically correct names for a floral whorl are:
i. | Androecium | ii. | Carpel |
iii. | Corolla | iv. | Sepal |
1. | i and iv | 2. | iii and iv |
3. | ii and iv | 4. | i and ii |
All the following can be considered as equivalent terms except:
1. |
Megasporangium |
Ovule |
2. |
Megasporophyll |
Stamen |
3. |
Female gametophyte |
Embryo sac |
4. |
Microspore |
Pollen grain |
The correct sequence of layers in the wall of an anther from outside to inside is:
1. | Tapetum – Middle Layers – Endothecium – Epidermis |
2. | Epidermis – Endothecium – Tapetum – Middle layers |
3. | Epidermis – Endothecium – Middle layers – Tapetum |
4. | Tapetum – Endothecium – Middle layers – Epidermis |
Tapetum :
I. | Is a layer of nutritive cells that are found within the microsporangium. |
II. | The cells are usually bigger and normally have more than one nucleus per cell because mitosis is not normal in them. |
III. | Helps in pollen wall formation, transportation of nutrients to the inner side of the anther, synthesis of callose enzyme for separation of microspore tetrads. |
Of the above statements, the correct ones are:
1. | I and II only | 2. | I and III only |
3. | II and III only | 4. | I, II, and III |
The embryo sac is to ovule as _______ is to an anther.
1. | Stamen | 2. | Filament |
3. | Pollen grain | 4. | Androecium |