How does the embryo get nourishment inside the mother's body?

Embryo develops from zygote in the female body after the fertilization of ovum (female gamete) by sperm (male gamete). The zygote undergoes cell division and forms a blastocyte. The blastocyte further divides and develops into an embryo. The embryo, with time, develops well differentiated and specialized cell types that make up tissues and organs for a fetus development.

The embryo gets nourishment inside the mother's body through the placenta.

The placenta is an organ that develops inside the uterus during pregnancy.
It is a disc shaped tissue that acts as a link between the mother's blood supply and the developing fetus.
The placenta is attached to the uterine wall and is connected to the fetus by the umbilical cord.
On the side of the embryo, the placenta comprises villi, while on the mother's side, it is surrounded by blood vessels.
The placenta facilitates the transfer of glucose and oxygen from the mother's blood to the developing fetus.
Additionally, the placenta produces several hormones that are vital for a healthy pregnancy.
The umbilical cord contains blood vessels that allow nutrients and oxygen to be delivered from the mother's bloodstream to the fetus.
The waste products are removed from the fetal bloodstream and eliminated through the mother's excretory system.
These hormones include human chorionic gonadotropin (hCG), which is produced in the early stages of pregnancy, and progesterone and estrogen, which are produced later on.

Overall, the placenta plays a crucial role in supporting the growth and development of the fetus during pregnancy, and its proper function is essential for a healthy pregnancy and delivery.

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Related Topics:
Sexual Reproduction	Homeostasis	Heredity and Evolution
Heredity	Menstrual Cycle	Sex Determination

CBSE CLASS XII Related Questions

1.
Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected? Write its symptoms as well as karyotype.

View Solution

2.
What is the carrying capacity of a species in a habitat?
Explain the growth curve that takes this capacity into account.

View Solution

3.
Read the following passage and answer the questions that follow:
India is one of the megadiverse countries housing around 8·1 per cent of global species diversity, although its land area is only 2·4 per cent of the world’s land area. Many of the species are highly threatened due to human activities like deforestation, mining and habitat fragmentation. Laws like Wildlife (Protection) Act, 1972 were enacted by the Government of India to preserve our biological wealth. Various conservation measures are being implemented to save the threatened species. The following bar graph shows the number of species conserved under different biodiversity conservation methods.

Which other methods shown in the diagram are opposite to the one identified by you in question ? How are these two conservation approaches different?
(c) Write two features of Biodiversity hotspots.
(c) To which category do sacred groves belong and how do they help in bio-conservation?

4.
Oogenesis is a discontinuous process that begins before birth and is completed after puberty.
Trace the development of a gamete mother cell till its release from the ovary during ovulation.
Name the two pituitary hormones that play an important role in the process.

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5.
Work out the crosses between:
Normal female and Haemophilic male
Carrier female and Normal male
(III) Carrier female and Haemophilic male
Write the conclusions you draw from these crosses. Comment on the type of inheritance of the disease.
(Use: $X$ - Normal, $X^h$ - Haemophilic)

View Solution

6.
Explain any two basic principles/core techniques on which biotechnology is based.
Describe any three key tools used in Recombinant DNA technology.

View Solution

How does the embryo get nourishment inside the mother's body?

CBSE CLASS XII Related Questions

1.
Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected? Write its symptoms as well as karyotype.

2.
What is the carrying capacity of a species in a habitat?
Explain the growth curve that takes this capacity into account.

4.
Oogenesis is a discontinuous process that begins before birth and is completed after puberty.
Trace the development of a gamete mother cell till its release from the ovary during ovulation.
Name the two pituitary hormones that play an important role in the process.

5.
Work out the crosses between:
Normal female and Haemophilic male
Carrier female and Normal male
(III) Carrier female and Haemophilic male
Write the conclusions you draw from these crosses. Comment on the type of inheritance of the disease.
(Use: $X$ - Normal, $X^h$ - Haemophilic)

6.
Explain any two basic principles/core techniques on which biotechnology is based.
Describe any three key tools used in Recombinant DNA technology.

Similar Biology Concepts

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How does the embryo get nourishment inside the mother's body?

CBSE CLASS XII Related Questions

1.Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected? Write its symptoms as well as karyotype.

2.What is the carrying capacity of a species in a habitat? Explain the growth curve that takes this capacity into account.

4.Oogenesis is a discontinuous process that begins before birth and is completed after puberty. Trace the development of a gamete mother cell till its release from the ovary during ovulation. Name the two pituitary hormones that play an important role in the process.

5.Work out the crosses between: Normal female and Haemophilic male Carrier female and Normal male (III) Carrier female and Haemophilic male Write the conclusions you draw from these crosses. Comment on the type of inheritance of the disease. (Use: $X$ - Normal, $X^h$ - Haemophilic)

6.Explain any two basic principles/core techniques on which biotechnology is based. Describe any three key tools used in Recombinant DNA technology.

Similar Biology Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Name the phenomenon that leads to situations like ‘XO’ abnormality in humans. Also name this genetic disorder. How are individuals with an XO chromosomal abnormality affected? Write its symptoms as well as karyotype.

2.
What is the carrying capacity of a species in a habitat?
Explain the growth curve that takes this capacity into account.

4.
Oogenesis is a discontinuous process that begins before birth and is completed after puberty.
Trace the development of a gamete mother cell till its release from the ovary during ovulation.
Name the two pituitary hormones that play an important role in the process.

5.
Work out the crosses between:
Normal female and Haemophilic male
Carrier female and Normal male
(III) Carrier female and Haemophilic male
Write the conclusions you draw from these crosses. Comment on the type of inheritance of the disease.
(Use: $X$ - Normal, $X^h$ - Haemophilic)

6.
Explain any two basic principles/core techniques on which biotechnology is based.
Describe any three key tools used in Recombinant DNA technology.