45th B.P.S.C. (Pre) 2001
Where does fertilization occur?
aIn uterus
bIn oviduct✓ Correct
cIn ovary
dIn vagina
Explanation
In humans, fertilization is internal. Through sexual intercourse, the male gamete (sperm) enters the female reproductive tract. Sperm are highly active and motile. Millions of sperm enter the vagina and move towards the uterus through the cervix. Finally, only one sperm fertilizes the ovum in the oviduct (fallopian tube). ## Page 23 In the process of respiration, energy is released and stored in the form of ATP. In living cells, the process by which energy is produced as a result of oxidation of food is called cellular respiration. During this process, the released energy is stored in the biomolecule ATP.
general-science