You want to examine the internal anatomy of seeds from Taxus and Ricinus. The plant material you obtain only consists of mature seeds - this can be challenging as mature seeds are often quite hard making it difficult to cut a longitudinal slice through the seeds from each genus. In addition to your drawings, you described (with great accuracy) what you saw as follows:
You want to examine the internal anatomy of seeds from Taxus and Ricinus. The plant material you obtain only consists of mature seeds - this can be challenging as mature seeds are often quite hard making it difficult to cut a longitudinal slice through the seeds from each genus. In addition to your drawings, you described (with great accuracy) what you saw as follows:
| A. |
The coyledons of the Ricinus embryo were just about visible, though often hard to distinguish, surrounded by the nutritive endosperm tissue. The seeds of Taxus were too mature to slice open but they were surrounded by the fleshy, red tissue that contains the poisonous substance taxol. |
|
| B. |
The coyledons of the Ricinus embryo were just about visible, though often hard to distinguish, surrounded by the nutritive endosperm tissue. The seeds of Taxus were too mature to slice open but they were surrounded by the fleshy, red tissue that birds eat. |
|
| C. |
The coyledons of the Ricinus embryo were just about visible, though often hard to distinguish, surrounded by the nutritive perisperm tissue. The seeds of Taxus were too mature to slice open but they were surrounded by the fleshy red, fruit tissue. |
|
| D. |
The coyledons of the Ricinus embryo were just about visible, though often hard to distinguish, surrounded by the nutritive endosperm tissue. The seeds of Taxus were too mature to slice open but they were surrounded by the fleshy red, fruit tissue. |
Step by step
Solved in 3 steps
