Welcome to the NCERT Solutions for Class 12 Biology - Chapter Human Reproduction. This page offers a step-by-step solution to the specific question from Exercise 1, Question 15: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
(a) Corpus luteum − Corpus luteum is formed from the ruptured Grafiaan follicle. It secretes progesterone hormone during the luteal phase of the menstrual cycle. A high level of progesterone inhibits the secretions of FSH and LH, thereby preventing ovulation. It also allows the endometrium of the uterus to proliferate and to prepare itself for implantation.
(b) Endometrium − It is the innermost lining of the uterus. It is rich in glands and undergoes cyclic changes during various phases of the menstrual cycle to prepare itself for the implantation of the embryo.
(c) Acrosome − It is a cap-like structure present in the anterior part of the head of the sperm. It contains hyaluronidase enzyme, which hydrolyses the outer membrane of the egg, thereby helping the sperm to penetrate the egg at the time of fertilization.
(d) Sperm tail − It is the longest region of the sperm that facilitates the movement of the sperm inside the female reproductive tract.
(e) Fimbriae − They are finger-like projections at the ovarian end of the fallopian tube. They help in the collection of the ovum (after ovulation), which is facilitated by the beating of the cilia.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Stay updated with our latest educational content and study tips
The internet is full of entertaining apps, games and movies for kids of all ages. However not everything online is safe. Hidden among these entertaining platforms are internet frauds that target children with phony gifts, free game currencies or friendly looking people. As a parent, you may believe that scammers only target adults; yet children […]
Read MoreDid you know? The average teenager spends 7 – 8 hours daily on screens . That’s almost like working a full – time job in front of a screen – except kids aren’t earning a paycheck; instead they’re often trading sleep, focus and health for digital time. In today’s world, screens are everywhere – TV, […]
Read MoreChildren are spending more time online than ever before in today’s digital world. The internet provides enjoyment and knowledge through social media and online education, but it also has unspoken risks. Parents frequently worry about harmful information, internet predators and cyberbullying. The good news is that most problems can be avoided by teaching children basic […]
Read MoreThe internet has become an inseparable part of our daily lives . From online learning to social media most systems we use today are fully digitized and processed by computers. While this digital shift has created immense opportunities it has also opened new challenges – especially for children and teenagers. Social media, gaming platforms and […]
Read MoreWelcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 15: Name the functions of the following. (a) Corpus luteum (b) Endometrium (c) Acrosome (d) Sperm tail (....
Comments
nyc answers
It is a good site .It gives short answers but it is understandable..