English

What is Placenta? - Biology

Advertisements
Advertisements

Question

What is Placenta?

Short/Brief Note
Advertisements

Solution

The placenta is an organ composed of blood capillaries, villi, connecting tissue, and latent endocrinal cells.

shaalaa.com
  Is there an error in this question or solution?
Chapter 10: The Reproductive System - Short Questions

APPEARS IN

ICSE Biology [English] Class 10 ICSE
Chapter 10 The Reproductive System
Short Questions | Q 14.1

RELATED QUESTIONS

What is the significance of amniotic fluid?


Match the items in column I with those in column II and write down the matching pairs (some  may not match)  

  Column I    Column II
a Acrosome  1 An embryo which looks like human baby
b Gestation  2 Luteinizing hormone
c Menopause  3 ovum producing cells
d Foetus  4 complete stoppage of menstrual cycle
e Oogenesis 5 spermatozoa 
f Ovulation  6 Complete stoppage of menstrual  cycle.
    7 Time taken by a fertilized egg till the delivery of baby 

 


State whether the following statements are TRUE (T) or FALSE (F): 

Rewrite  of the wrong statements by correcting only one word either at the beginning or at the end of the sentences. 

Gestation period in humans is about 380 days. 


Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.

Hyaluronidase.

  1. Is it an enzyme or simply a protein?
  2. What is its function?

Given below are the names of certain stages/substances related to reproduction and found in human body. Answer the questions related to them. 

Gestation
• What is its meaning?
• How long does it normally last? 


Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.

Placenta

  1. What are the two sources that form placenta?
  2. Name any two main substances which pass from foetus to mother through placenta.
  3. Name any two hormones it produces.

Describe briefly the ways how a mammalian embryo is protected


The diagram given below shows an embryo in the uterus of mammal. Label the parts indicated.


Assertion (A): The foetus respires but does not breathe.

Reason (R): The maternal blood supplies oxygen to the foetus through placenta.


Amniotic fluid serves to provide oxygen to the foetus.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×