NEET BIOLOGY

REPRODUCTION

HUMAN REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What does the placenta do?
A
It allows nutrients to enter the fetus from the mother and waste products to leave the fetus.
B
It allows the nutrients and waste products to travel freely between the foetus and the mother.
C
It prevents all bad chemicals from harming the fetus.
D
It allows solid food to reach the fetus.
Explanation: 

Detailed explanation-1: -The placenta is an organ that develops in the uterus during pregnancy. This structure provides oxygen and nutrients to a growing baby. It also removes waste products from the baby’s blood. The placenta attaches to the wall of the uterus, and the baby’s umbilical cord arises from it.

Detailed explanation-2: -The placenta helps to keep your baby alive and healthy during pregnancy. Your blood passes through the placenta and provides oxygen, glucose and nutrients to your baby through the umbilical cord. The placenta can also filter out harmful waste and carbon dioxide from your baby’s blood.

Detailed explanation-3: -The placenta is a temporary organ that begins to form from the trophoblast layer of cells shortly after implantation. It allows nutrients and wastes to be exchanged between the mother and fetus.

Detailed explanation-4: -Placenta and Related Structures The fetus could not grow and develop without oxygen and nutrients from the mother. Wastes from the fetus must also be removed in order for it to survive. The exchange of these substances between the mother and fetus occurs through the placenta.

Detailed explanation-5: -The placenta acts to provide oxygen and nutrients to the fetus, whilst removing carbon dioxide and other waste products. It metabolises a number of substances and can release metabolic products into maternal and/or fetal circulations.

There is 1 question to complete.