An example of mitosis at work is a leaf

turning yellow.
growing.
taking in carbon dioxide.
performing photosynthesis.

An example of mitosis at work in a leaf is growth. Mitosis is the process by which cells divide and multiply, leading to the growth and development of tissues and organs. In the case of a leaf, mitosis allows for the production of new cells which leads to overall leaf growth. As more cells are produced through mitosis, the leaf expands in size.