Question:
The anterior portion of the sperm head which is covered by a cap-like structure called
The anterior portion of the sperm head which is covered by a cap-like structure called
Updated On: Jun 14, 2022
- acrosome
- antrum
- sertoli cells
- enzymes
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
The anterior portion of the sperm head which is covered by cap-like structure is called acrosome. It contain hydrolytic enzyme called sperm lysins, e.g., acrosin, hyaluronidase and neuraminidase (a trypsin like enzyme). Besides acrosomes, head also contain a lightly fitting nucleus, whose shape is species specific. Another regions of human sperm are neck, middle piece and tail (flagellum).
Was this answer helpful?
0
0
Top Questions on human reproduction
- Match List I with List II :Choose the correct answer from the options given below :
List - I (Structures) List – II (Features) A. Mons pubis i. A fleshy fold of tissue surrounding the vaginal opening B. Clitoris ii. Fatty cushion of cells covered by skin and hair C. Hymen iii. Tiny finger-like structure above labia minora D. Labina majora iv. A thin membrane-like structure covering vaginal opening - NEET (UG) - 2024
- Biology
- human reproduction
- Following is the list of STD’s. Select the discases which are not completely curable.Choose the correct answer from the options given below:
A. Genital warts B. Genital herpes C Syphilis D Hepatius-B E Trichomoniasis - NEET (UG) - 2024
- Biology
- human reproduction
- Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :
Assertion A : FSH acts upon ovarian follicles in female and Leydig cells in male.
Reason R : Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in male human being.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Biology
- human reproduction
- Match List I with List II :Choose the correct answer from the options given below :
List - I List – II A. Parturition i. Several antibodies for new-born babies B. Placenta ii. Collection of ovum after ovulation C. Colostrum iii. Foetal ejection reflex D. Fimbriae iv. Secretion of the hormone hCG - NEET (UG) - 2024
- Biology
- human reproduction
- Given below are two statements:
Statement I: The presence or absence of hymen is not a reliable indicator of virginity.
Statement II: The hymen is torn during the first coitus only.
In the light of the above statements, choose the correct answer from the options given below:- NEET (UG) - 2024
- Biology
- human reproduction
View More Questions
Questions Asked in JKCET exam
- A moving block having mass $m$, collides with another stationary block having mass $4\,m$. The lighter block comes to rest after collision. When the initial velocity of the lighter block is $v$, then the value of coefficient of restitution (e) will be
- JKCET - 2019
- work, energy and power
- A force $ F = 3x^2 + 2x + 1 $ acts on a body in the $ x $ -direction. The work done by this force during a displacement from $ x = -1 $ to $ +1 $ is
- JKCET - 2019
- work, energy and power
- What is the colour of the flame on heating potassium in the flame of a Bunsen burner?
- JKCET - 2019
- GROUP 1 ELEMENTS
- If $ a $ , $ b $ , $ c $ are the lengths of three edges of unit cell, $ \alpha $ is the angle between side $ b $ and $ c $ , $ \beta $ is the angle between side $ a $ and $ c $ and $ \gamma $ is the angle between side $ a $ and $ b $ , what is the Bravais Lattice dimensions of a tetragonal crystal?
- JKCET - 2019
- The solid state
- Which of the following compounds is known as copper glance?
- JKCET - 2019
- General Principles and Processes of Isolation of Elements
View More Questions
Concepts Used:
Human Reproduction
Reproduction in human beings involves the fusion of male and female gametes that produces in their reproductive system.
Male Reproductive System:
The male reproductive system comprises:
- Testicles (testes): A pair of oval-shaped organs masked in a pouch known as the scrotum. They manage the production of sperms and the male hormone testosterone.
- Scrotum: It is a sac-like organ that hangs under the penis and behind it. It is the house of the testes, or testicles, and maintains a temperature that is needed for the production of sperm by it.
- Vas deferens: The sperms produced in testes are stored in a tube known as the epididymis. Here the sperms get matured and pass to the urethra via the muscular tube known as vas deferens.
- Accessory glands: This includes three glands, namely the prostate gland, seminal vesicles, and Cowper’s gland. The secretions from the mentioned three glands mix to form a fluid known as semen. Semen nourishes the sperm, raises the volume, and helps in lubrication.
- Penis: The penis is a cylindrical tube that serves as both an excretory organ, and a reproductive organ. It transfers sperms into the vagina during sexual intercourse.
Female Reproductive System:
The female reproductive system is active before, during, and after fertilization as well. It comprises the following parts:
- A pair of ovaries: A pair of ovaries produce and stores ovum in them. They also produce a female hormone known to be estrogen.
- Fallopian tubes (Oviducts): They are the area of fertilization. They connect both the ovaries with the uterus.
- Uterus: Uterus is the place of development for the embryo.
- Vagina: The part that connects the cervix to the external female body parts is called a vagina. It is the passage for the penis during coitus as well as a fetus during transfer.