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NCERT solutions for Class 12 Biology chapter 3 - Human Reproduction

Biology Textbook for Class 12

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Chapters

NCERT Biology Class 12

Biology Textbook for Class 12

Chapter 3 - Human Reproduction

Pages 55 - 56

Q 1.01 | Page 55

Fill in the blanks:

Humans reproduce __________.

asexually

sexually

Q 1.02 | Page 55

Fill in the blanks:

Humans are__________.

oviparous

viviparous

ovoviviparous

Q 1.04 | Page 55

Fill in the blanks

Male and female gametes are __________.

diploid

haploid

Q 1.05 | Page 55

Fill in the blanks:

Zygote is __________. (diploid/haploid)

Q 1.06 | Page 55

Fill in the blanks:

The process of release of the ovum from a mature follicle is called__________.

Q 1.07 | Page 55

Fill in the blanks:

Ovulation is induced by a hormone called the __________

Q 1.08 | Page 55

Fill in the blanks:

The fusion of the male and the female gametes is called __________.

Q 1.1 | Page 55

Fill in the blanks

The zygote divides to form __________, which is implanted in uterus

Q 1.11 | Page 55

Fill in the blanks:

The structure which provides vascular connection between the fetus and uterus is called __________.

Q 2 | Page 55

With the help of a neat, labelled diagram describe the human male reproductive system.

Q 3 | Page 55

Draw a labeled diagram of female reproductive system.

Q 4 | Page 56

Write two major functions each of ovary.

Q 5 | Page 56

Describe the structure of a seminiferous tubule.

Q 6 | Page 56

What is spermatogenesis? Briefly describe the process of spermatogenesis.

Q 7 | Page 56

Name the hormones involved in regulation of spermatogenesis.

Q 8.1 | Page 56

Define spermiogenesis

Q 8.2 | Page 56

Define spermiation

Q 9 | Page 56

Draw a labeled diagram of sperm.

Q 10 | Page 56

What are the major components of seminal plasma?

Q 11 | Page 56

What are the major functions of male accessory ducts and glands?

Q 12 | Page 56

What is oogenesis? Give a brief account of oogenesis.

Q 13 | Page 56

Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.

Q 14 | Page 56

Draw a labeled diagram of a Graafian Follicle?

Q 15.1 | Page 56

Name the functions : Corpus luteum

Q 15.2 | Page 56

Name the functions - Endometrium

Q 15.3 | Page 56

Name the functions - Acrosome

Q 15.4 | Page 56

Name the functions - Sperm tail

Q 15.5 | Page 56

Name the functions - Fimbriae

Q 16.1 | Page 56

Identify True/False statements. Correct each false statement to make it true

Androgens are produced by Sertoli cells. (True/False)

Q 16.2 | Page 56

Identify True/False statements. Correct each false statement to make it true

Spermatozoa get nutrition from Sertoli cells. (True/False)

Q 16.3 | Page 56

Identify True/False statements. Correct each false statement to make it true.

Leydig cells are found in ovary. (True/False)

Q 16.3 | Page 56

Identify True/False statements. Correct each false statement to make it true.

Leydig cells are found in ovary. (True/False)

Q 16.5 | Page 56

Identify True/False statements. Correct each false statement to make it true.

Oogenesis takes place in corpus luteum. (True/False)

Q 16.6 | Page 56

Identify True/False statements. Correct each false statement to make it true.

Menstrual cycle ceases during pregnancy. (True/False)

Q 16.7 | Page 56

Identify True/False statements. Correct each false statement to make it true.

Presence or absence of hymen is not a reliable indicator of virginity or sexual experience. (True/False)

Q 17.1 | Page 56

What is menstrual cycle?

Q 17.2 | Page 56

Which hormones regulate menstrual cycle?

Q 18 | Page 56

What is parturition? Which hormones are involved in induction of parturition?

Q 19 | Page 56

Women are often blamed for producing female children. Consequently, they are ill-treated and ostracised. How will you address this issue scientifically if you were to conduct an awareness programme to highlight the values involved?

Q 20 | Page 56

How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?

Q 21 | Page 56

How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?

Q 21 | Page 56

How many eggs do you think were released by the ovary of a female dog which gave birth to 6 puppies?

NCERT Biology Class 12

Biology Textbook for Class 12

NCERT solutions for Class 12 Biology chapter 3 - Human Reproduction

NCERT solutions for Class 12 Biology chapter 3 (Human Reproduction) include all questions with solution and detail explanation from Biology Textbook for Class 12. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has created the CBSE Biology Textbook for Class 12 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at shaalaa.com are providing such solutions so that students can prepare for written exams. These NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 12 Biology chapter 3 Human Reproduction are The Male Reproductive System, Microscopic Anatomy of Testis, Microscopic Anatomy of Ovary, Gametogenesis, Menstrual Cycle, Fertilisation and Implantation, Embryo Development Upto Blastocyst Formation, Pregnancy and Embryonic Development, Parturition and Lactation, The Female Reproductive System, Human Reproduction Introduction, Human Reproduction Questions.

Using NCERT solutions for Class 12 Biology by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 12 prefer NCERT Textbook Solutions to score more in exam.

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