I believe you should give C
Answer: E. All of the above
Explanation:
Hormones are called as the chemical messengers. These are secreted by the specialized cells of body and their action is on other cells of the body that are called as the target. The following can alter the hormonal levels in the body:
A. Changes in mineral and nutrient plasma levels: The minerals and nutrients can supports the amount of secretion of the hormones.
B. Pituitary tumor: The pituitary gland is a secretor of various hormones if the tumor produces over the pituitary gland then this will lead to the inhibition of hormone secretion from pituitary.
C. Transatlantic flight: The flight above the dense ocean is called as transatlantic flight. This may be responsible for increase in secretion of hormones which are responsible for increasing the stress and anxiety.
D. Training for the Olympics: In such a situation, the hormones which can increase the performance will be released such as testosterone.
Answer:
True!
Explanation:
Carbon monoxide is released from running cars and smoking tobacco. It is, in fact, toxic to humans.
Answer:
(B). inhibiting HMG-CoA reductase.
Explanation:
Lovastatin is a drug, which is used to reduce risk for cardiovascular diseases and to reduce level of cholesterol in blood.
It works by inhibiting HMG-CoA reductase (3-hydroxy-3-methylglutaryl-coenzyme A reductase) enzyme, required for the formation of mevalonate from HMG-CoA.
Mevalonate is building block for the biosynthesis of cholesterol. Hence, lovastatin inhibits cholesterol production by inhibiting synthesis of mevalonate.
Thus, the correct answer is option (B).
