Biology Past Questions and Answers

The part of the cell solely responsible for respiration is the

In anaerobic respiration, glucose is converted to one of the following

During excretion of urea there is also a corresponding re-absorption of water into the blood. This re-absorption takes place in the

If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will die eventually die because?

The filament of spirogyra were put into equal volumes of sugar solutions X and Y. After 5 minutes, filaments from solution X had their cells contents rounded up while those from Y were unaffected. The experiment shows that