BIOLOGIA - pytania z zakresu klasy pre-IB - 40 pkt
Ex. 4 [2 pt.]Distinguish between the structure of DNA and RNA.
Ex. 5 [3 pt.] The enzyme pepsin, involved in protein digestion in the stornach, requires an acid pH to work properly. Explain the effect of pH on enzyme activity.
Ex. 6 [3 pt.] A man of blood type AB and a woman of blood type B are expecting a baby. The woman's mother had blood type O. Deduce the possible phenotypes of the offspring. show your working.
Ex. 7 [3 pt.] Describe the role of blood in maintaining homeostasis in human body in terms of body temperaturę, glucose concentration and removal of metabolic wastes.