Biology
Mention if the following statements are True (T) or False (F):
(i) Placenta produces certain hormones.
(ii) Amniotic fluid serves to provide oxygen to the foetus.
(iii) Heart and blood vessels have been formed by the end of five weeks of pregnancy.
(iv) Mother's blood flows into the foetus through placenta.
Reproductive System
21 Likes
Answer
(i) True
(ii) False
Corrected Statement — Amniotic fluid serves to provide protection to the foetus.
(iii) True
(iv) False
Corrected Statement — Mother's blood and the foetal blood do not directly mix in the placenta. Instead, the placenta acts as a barrier between the maternal and foetal circulations to allow for the exchange of oxygen, nutrients, and waste products without direct mixing of blood.
Answered By
14 Likes
Related Questions
Write one sentence each using the following terms pertaining to reproduction in humans.
(i) Gestation
(ii) 280 days
(iii) Head first
(iv) Placenta
(v) After-birth
(vi) Tied and cut
Does the foetus inside the mother's uterus breathe? Yes/No
Complete the following by filling in the blanks 1 to 5 with appropriate words:
The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ……………(1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the …………… (2) follicle. The process of releasing the egg from the ovary is called …………… (3). The ovum is picked up by the oviductal funnel and fertilization takes place in the ……………(4). In about a week the blastocyst gets fixed in the endometrium of the uterus and this process is called ……………(5).
The male accessory gland whose secretion neutralizes the acidity of the urethra and vagina is:
- Seminal vesicle
- Prostate gland
- Seminiferous tubule
- Bulbo-urethral gland