Question
What are the functions of placenta?

Answer

→ The placenta is connected to the embryo through an umbilical cord which helps in the transport of substances to and from the embryo.
→ The placenta facilitate the supply of oxygen and nutrients to the embryo and also removal of carbon dioxide and excretory/waste materials produced by the embryo.
→ Placenta also acts as an endocrine tissue and produces several hormones like human chorionic gonadotropin (hCG), human placental lactogen (hPL), estrogens, progestogens, etc.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

What do you mean by hotspots of bio-diversity? What are evidences for identity of hot spots? Write two Indian hotspots.###What is biodiversity hotspot? Write down the name and species diversities of two such hot spots found in India.
Despite the Green Revolution, is there any alternative way by which maximum production can be achieved with minimum use of fertilizers and chemicals?
Rearrange the following in increasing order of evolution: Gnetales; Ferns; Zosterophyllum; Ginkgo.
After a brief medical examination a healthy couple came to know that both of them are unable to produce functional gametes and should look for an ‘ART’ (Assisted Reproductive Technique). Name the ‘ART’ and the procedure involved that you can suggest to them to help them bear a child.

Study the linking of DNA fragments shown above.

  1. Name 'a' DNA and 'b' DNA.
  2. Name the restriction enzyme that recognizes this palindrome.
  3. Name the enzyme that can link these two DNA fragments.
Give the scientific names of any two microorganisms inhabiting the human intestine.
Effluent from the primary treatment of the sewage is passed through large aeration tanks for biological treatment.
Explain the complete process that follows till the water is ready to be released into the natural water bodies.
Where does fertilization take place in human female?
  1. Mention the cause and the body system affected by ADA deficiency in humans.
  2. Name the vector used for transferring ADA-DNA into the recipient cells in humans. Name the recipient cells.
Is STDs are a major threat to a healthy society ?