2. Progesterone is a female sex hormone and plays a crucial...

2. Progesterone is a female sex hormone and plays a crucial role of in the maintenance of pregnancy. The structure of progesterone is given below. 2a. How many chirality centers does progesterone have? ______ Circle them in the structure above. 2b. What is the maximum number of stereoisomers possible for progesterone? __________ 2c. Are any of the stereoisomers a meso form? Yes / No Why?

Progesterone causes a decrease in Human Chorionic Gonadotropin (HCG) hormone. True False. QUESTION 2 For the following body reactions, decide whether the reaction is endocrine or nervous system: glucagon binding to a receptor, pin prick on the feet. QUESTION 3 If you are blood type A: you have antibodies against type A blood you have type B proteins on your red blood cell membranes you can donate blood to a person with type A blood you can receive blood from a person with type AB blood both a and b above are correct QUESTION 4 Which statement is correct concerning the heart? the right ventricle pumps blood to the lung and the left ventricle the right ventricle pumps blood to the lung the left ventricle pumps blood to the body including the lung the left atrium pumps blood to the body including the lung QUESTION 5 Which type of T cell directs the immune response? helper T cells suppressor T cells Killer T cells helper T cells and memory T cells b and c only

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