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Test: Spermatogenesis - NEET MCQ


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25 Questions MCQ Test Biology Class 12 - Test: Spermatogenesis

Test: Spermatogenesis for NEET 2024 is part of Biology Class 12 preparation. The Test: Spermatogenesis questions and answers have been prepared according to the NEET exam syllabus.The Test: Spermatogenesis MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Spermatogenesis below.
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Test: Spermatogenesis - Question 1

Spermatogenesis is promoted by:

Detailed Solution for Test: Spermatogenesis - Question 1

As male attain puberty. Leydig cells surrounding seminiferous tubules start to secrete testosterone hormone which initiate Spermatogenesis in Seminiferous tubules.

Test: Spermatogenesis - Question 2

The endocrine tissue of the testis is constituted primarily by:

Detailed Solution for Test: Spermatogenesis - Question 2

Interstitial cell secrete Testosterone as main Androgen.

Test: Spermatogenesis - Question 3

The secondary sex organs:

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Primary sex organs(ovaries and testes) have the ability to produce sperms and eggs (gametes) and harmones like testosterone (males) , estrogen and progesterone (females) while secondary sex organs can help in conduction of the gametes and contribute to the media transporting them(eg. seminal plasma) but do not produce harmones.

A is the correct answer 

Test: Spermatogenesis - Question 4

In humans, at the end of the first meiotic division, the male germ cells differentiate into the:    

Detailed Solution for Test: Spermatogenesis - Question 4

A primary spermatocyte completes the first meiotic division (reduction division) leading to formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each.

Test: Spermatogenesis - Question 5

Which among the following has 23 chromosomes?

Detailed Solution for Test: Spermatogenesis - Question 5

Secondary oocyte: The secondary oocyte is the cell that is formed by meiosis I in oogenesis. Thus, it has only one of each pair of homologous chromosomes

Test: Spermatogenesis - Question 6

How are mature human sperm and ova similar?

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Both Ovum and Sperm have haploid content 

Test: Spermatogenesis - Question 7

Spermatogenesis complete in            

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Spermatogenesis get completed in seminiferous tubule.

Test: Spermatogenesis - Question 8

Spermatozoa are nourished during their development by

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Sertoli cells provide nutrition to the germ cells.

Test: Spermatogenesis - Question 9

What is incorrect about male  gametes of human     

Detailed Solution for Test: Spermatogenesis - Question 9

Human sperm is haploid cell have flagellated tail like structure for movement.

Test: Spermatogenesis - Question 10

Which piece of a sperm is called power house

Detailed Solution for Test: Spermatogenesis - Question 10

The middle piece possesses numerous mitochondria, which produce energy for the movement of tail that facilitates sperm motility essential for fertilisation.

Test: Spermatogenesis - Question 11

The onset of spermatogenesis starts at _________

Detailed Solution for Test: Spermatogenesis - Question 11
  • Spermatogenesis is the process of the production of sperms from spermatogonia in the testis.
  • Puberty is the time of onset of this process.
Test: Spermatogenesis - Question 12

Which cell inclusion of the spermatid forms the acrosome of the sperm

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Acrosome derived from Golgi body and have enzyme for sperm penetration

Test: Spermatogenesis - Question 13

Which part of sperm enters in egg in human :

Detailed Solution for Test: Spermatogenesis - Question 13

The sperm is the male reproductive cell, which possesses the haploid gamete which when fused with the ovum fertilized to form an embryo. The sperm is produced in the male reproductive organs of the organism and is always smaller when compared to the ovum. The sperm is a motile cell that has 4 regions., the head, the neck, the middle piece, and the tail. Each performing specific functions to aid in fertilization. The head of the sperm consists of the haploid nucleus and several small structures called the acrosome. The acrosome contains enzymes that enable the sperm to penetrate the ovum. When a sperm encounters an egg, openings develop in the sperm acrosome, exposing enzymes, that digest a path through the zona pellucida surrounding the secondary oocyte. As soon as one sperm enters the secondary oocyte, changes occur that prevent the entrance of other sperm. As the fertilizing sperm enters, it usually loses its flagellum. Sperm entry stimulates the secondary oocyte to complete its second meiotic division. The head of the haploid sperm then swells to form the male pronucleus and fuses with the female pronucleus to form the diploid nucleus of the zygote.
Correct answer is A.

Test: Spermatogenesis - Question 14

Release of sperm from testes is called

Detailed Solution for Test: Spermatogenesis - Question 14

After spermiogenesis, sperm heads become embedded in the Sertoli cells, and are finally released from the seminiferous tubules by the process called spermiation.


The liberation of sperms from testes is called Semination. The liberation of sperms from the body of the male is called Ejaculation. Mammalian sperms are transferred to the vagina of females by the process called insemination.

 

Test: Spermatogenesis - Question 15

Longest phase of spermatogenesis is

Detailed Solution for Test: Spermatogenesis - Question 15

During multiplication phase, the germ cells of seminiferous tubules present near the capsule divide and produce primary spermatocytes cells by mitosis. The growth phase is marked by an increase in cell size of primary spermatocytes to undergo meiosis. The maturation phase starts with meiosis I in the primary spermatocyte to produces two secondary spermatocytes (n) which is followed by meiosis II that produces four spermatids. The maturation phase is the longest one. 

Test: Spermatogenesis - Question 16

The acrosome plays a role in

Detailed Solution for Test: Spermatogenesis - Question 16

Acrosome derived from Golgi body and have enzyme for sperm penetration.

Test: Spermatogenesis - Question 17

Which piece of a sperm is called power house

Detailed Solution for Test: Spermatogenesis - Question 17

The middle piece possesses numerous mitochondria, which produce energy for the movement of tail that facilitates sperm motility essential for fertilisation.

Test: Spermatogenesis - Question 18

Which types of division take place during second maturation division

Detailed Solution for Test: Spermatogenesis - Question 18

Meiosis II is Equational division 

Test: Spermatogenesis - Question 19

"Spermiogenesis" is a process in which

Detailed Solution for Test: Spermatogenesis - Question 19

The spermatids are transformed into spermatozoa (sperms) by the process called spermiogenesis.

Test: Spermatogenesis - Question 20

A person with tetraploidy will have _______ set of chromosomes in their Spermatids.

Detailed Solution for Test: Spermatogenesis - Question 20
  • Spermatogenesis produces haploid spermatids from diploid spermatogonia.
  • A tetraploid person will have tetraploid spermatogonia which upon undergoing meiosis will result in diploid spermatids.
  • The person would be infertile.
Test: Spermatogenesis - Question 21

The correct sequence of spermatogenesis stages leading to the formation of sperms in a mature human testis is

Detailed Solution for Test: Spermatogenesis - Question 21

Some of the spermatogonia called primary spermatocytes periodically undergo meiosis. A primary spermatocyte completes the first meiotic division (reduction division) leading to formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each. The secondary spermatocytes undergo the second meiotic division to produce four equal, haploid
spermatids 
 

Test: Spermatogenesis - Question 22

Hormone release from anterior pituitary Like FSH and LH act on -

Detailed Solution for Test: Spermatogenesis - Question 22

LH acts at the Leydig cells and stimulates synthesis and secretion of androgens. Androgens, in turn, stimulate the process of spermatogenesis. FSH acts on the Sertoli cells

Test: Spermatogenesis - Question 23

Middle piece of mammalian sperm contains:

Detailed Solution for Test: Spermatogenesis - Question 23

The middle piece possesses numerous mitochondria.

Test: Spermatogenesis - Question 24

Maturation of human sperms occur in:

Detailed Solution for Test: Spermatogenesis - Question 24

 

The maturation of human sperm occurs in the Epididymis. Option 2 is the correct answer. The epididymis is a coiled tube located at the back of each testicle, where sperm undergo the final stages of maturation, become more motile, and gain the ability to fertilize an egg.

Test: Spermatogenesis - Question 25

The release of spermatozoa from the sertoli cells is called as:

Detailed Solution for Test: Spermatogenesis - Question 25

After spermiogenesis,sperm heads become embedded in the Sertoli cells, and are finally released from the seminiferous tubules by the process called spermiation.

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