Some plants for example the jackinthepulpit have high concen

Some plants, for example the jack-in-the-pulpit, have high concentrations of calcium oxalate crystals In their cells. Taking a bite of the raw plant tissue produces a severe burning sensation in the lining of the mouth. Drinking water does not alleviate the pain. Can you suggest a reason why drinking water does not help? _____ How do the druses seen in a begonia differ in appearance from the raphides seen in a zebrina? Begonia: _____ Zebrina: _____

Solution

7.

Answer: Jack-in-the-pulpit is a herbaceous perennial plant has high concentration of calcium oxalate crystals as raphides in their cells. Due to the needle shaped structure of raphides, taking a bite of the raw plant tissue produces a severe burning sensation like feeling in the lining of the mouth, not exactly the burning. So drinking water does not help in removing pain. It can cause irritation of the mouth and digestive system, and on rare occasions the swelling of the mouth and throat may be severe enough to affect breathing.

8.

Answer:

Druses in Begonia are the aggregation of calcium oxalate, silicates, or carbonates crystals with roughly spherical in shape.

The raphide crystals are shaped like needles, and are formed from calcium oxalate.