UCL CENTRE FOR LANGUAGES & INTERNATIONAL EDUCATION (CLIE)
This is a photograph of an organelle found in living cells. Use it to help answer questions 1, 2 and 3.
(From Essential Cell Biology, Alberts B et al (2009) 3rd edition; Garland Science, NY & London. Photo by Daniel S Friend.)
1) What is the name of this organelle?
2) What is the function of this organelle?
3) Which one of the following substances is produced when this organelle is functioning.
Figure 2 is a photograph of cell division taking place in the tip of a plant root.
A group of cells undergoing division - photo taken by Islam El-Konaissi, UPCSE student 2007/08, of his cell preparation.
4) Why is a root tip a good place to see this type of cell division?
5) The cell marked I on the diagram has 24 chromosomes. How many chromosomes are present in the cell marked II?