biology lab

Bean Development Lab Purpose: To study the relationship between time and weight changes in the cotyledons and embryos of the beans. Materials Needed: 30 Large or Small Bean Seeds Balance Paper Towel Rubber Band Water Large Beaker Lens Procedure: The first step that needed to be taken was picking out the beans. My lab partner and I decided to take 30 large beans and then brought them back to our desk. Then we chose ten beans and …

…was from taking the food and growing. 9. In my opinion the main nutrient source for the bean embryo was the food inside the cotyledon. The water that the beans were stored in, also played an important part. It kept the beans wet so they didn’t go bad. 10. Three sources of material that could contribute to the gain in the embryo’s weight are the food inside the cotyledon, water and other nutrients. ------------------------------------------------------------------------ **Bibliography**