Plovdiv Entrance Exam
Tested Questions With Revised
Correct Detailed Answers
>Latest Update>>
1. Where do spermatids mature? - ANSWER
epididymis
2. What is the primary function of the endocrine gland ? - ANSWER
Regulating homeostasis by hormonal secretion and communi...
1. Where do spermatids mature? - ANSWER epididymis
2. What is the primary function of the endocrine gland ? - ANSWER
Regulating homeostasis by hormonal secretion and communication
3. Name all the organs on the endocrine system ?(15) - ANSWER - kidney
- liver
- stomach
- adrenal gland or supernal gland
- pancreas
- testes
- ovaries
- hypothalamus
- pituitary
- pineal
- skin
- thymus
,- thyroid
- parathyroid
- uterus
4. What are the two types of hormones ? - ANSWER steroid and non-
steroid
5. What is the significance of steroid hormones ? - ANSWER They are able
to diffuse directly through the cell membrane
What is the significance of non-steroid hormones ? - ANSWER They are
unable to diffuse directly into the cell membrane , they instead bind to
receptors on the cell surface and activate an enzyme call cAMP , which triggers
a cascade of events
6. The mass number and atomic number of the lithium atom are shown by the
symbol 3 7 Li. What is the correct symbol for the lithium-ion in lithium chloride?
A) 2 6 Li-
B) 3 6 Li+
C) 3 7 Li+
D) 3 7 Li- - ANSWER C; loss of electron dosent affect RAM.
7. All of the following can act as Brønsted-Lowry acid (proton donors) in aqueous
solution except:
A) HI
B) HCO3 -
, C) H2S
D) NH3 - ANSWER D ; Only compound that is able to accept electrons without
donating them
8. All of the following statements about carbon dioxide are true except:
A) it can be prepared by the action of acid on limestone
B) it is used to extinguish fires
C) it dissolves in water at room temperature
D) it sublimes rather than melts at 20°C and 1 atmosphere pressure - ANSWER
D
9. Which of the options will form the major product ?
- primary carbocation
- secondary carbocation
- tertiary carbocation - ANSWER - TERTIARY CARBOCATION BECAUSE IT IS
MORE STABLE
10. True or false , alcohols do not react with NaOH ? - ANSWER true , they do
not react with NaOH and thus no salt is formed
11. Which of the reaction shown below involves the formation of an ionic
precipitate from a solution?
A) Ca2+ + CO3 CaCO3
B) HCO3 - + H+ H2CO3
C) Fe + Cu2+ Fe2+ + Cu
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