i. Pollen tube reaches the zygote via style. ii. There is glucose sugar in the semen.

Question

Write whether the following statements are true or false, with the suitable reason: i. Pollen tube reaches the zygote via style. ii. There is glucose sugar in the semen. iii. Out of 2 – 4 million ova, approximately only 400 oocytes are released up to the age of menopause. iv. If the oocyte is fertilized, secretion of estrogen and progesterone stops completely. v. During menstruation there is need of rest along with special personal hygiene. Select the correct answer from above options

Answer 1

i. False. (Pollen tube reaches the embryo sac via style. Later, double fertilization takes place and the zygote and endosperm are formed.) ii. False. (There is fructose sugar in the semen. Glucose is not present in semen.) iii. True. (During the reproductive span of the *****, from menarche to menopause only one oocyte per one month is released in the span of 30 to 35 years.) iv. False. (If the oocyte is not fertilized, there is no need of corpus luteum which secretes progesterone. In absence of conception, the progesterone is not needed, thus corpus luteum degenerates and forms corpus albicans.) v. True. (During phase of menstruation there is pain and bleeding in *****. Her body is also susceptible for infections. There is weakness and hence she needs rest along with special personal hygiene.)