Question
Study the photomicrograph shown below and answer questions that follow
a) Is this a plant cell or an animal cell?
b) Give TWO reasons for your answer in a) above
c) How is mitochondria important in the functioning of organelle labelled P
d) Determine the actual diameter of the cell represented by the dark line in micrometers
Answer
a) Plant (cell)
b)
- Has cell wall
- Nucleus is peripheral
- Large vacuole
- Chloroplast present
c)
- Supplies Carbon (IV) Oxide (that is a raw material for photosynthesis)
- Supplies ATP Energy.
Magnification = Image length⁄ Actual length
Actual length = Image length⁄ Magnification
= 5.9 mm / X3000
= 0.00196 mm
if 1 mm = 1000 micrometers
Thus 0.00196 mm = (0.00196mm X 1000 micrometers) ÷ 1 mm
= 1.967micrometers
Related Topics