(b) The magnification of the cress root in the image above is * 200.
There are 1000 micrometres (um) in a millimetre (mm).
Calculate the real length of the root hair, X.
Give your answer in micrometres (um).

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink.b. the chloroplasts would produce more energy.