English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Define spermiation.

Advertisements
Advertisements

Question

Define spermiation.

Definition
Advertisements

Solution 1

Spermiation is the process of releasing mature spermatozoa. In this, spermatozoa are shed into the lumen of the seminiferous tubule for transport.

shaalaa.com

Solution 2

After spermiogenesis, sperm heads become embeded in sertoli cells from which they obtain their nutrition and finally get released into the lumen of seminiferous tubules. This process of release of mature sperms from sertoli cells is called spermiation.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Human Reproduction - EXERCISES [Page 40]

APPEARS IN

NCERT Biology [English] Class 12
Chapter 2 Human Reproduction
EXERCISES | Q 8. b. | Page 40
Nootan Biology [English] Class 12 ISC
Chapter 2 Human Reproduction
NCERT EXERCISES | Q 8. (ii) | Page 116

RELATED QUESTIONS

The following is the illustration of the sequence of ovarian events (a − i) in a human female

(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.

(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.

(iii) Explain the changes that occur in the uterus simultaneously in anticipation.

(iv) Write the difference between ‘c’ and ‘h’.

(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.


Explain the development of a secondary oocyte (ovum)  in a human female from the embryonic stage upto its ovulation. Name the hormones involved in this process.


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


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


What is oogenesis?


Describe the process of budding in hydra.


Implantation of embryo occurs in ______.


Explain the structure of secondary oocyte.


What is gamete formation?


Sex organs produce gametes which are diploid.


The glandular accessory organ which produces the largest proportion of semen is ____________.


Expand the acronym.

hCG


The part labelled as ______ contains the energy source that facilitates sperm motility.


Formation of ____________ is an indication of the termination of oogenesis.


The immature male germ cells differentiates into ______ at the end of meiosis I. 


Four primary spermatocytes give rise to ______.


The human male gamete is usually about ______ in length.


Extrusion of second polar body from egg nucleus occurs ______.


By which process sperms released from the seminiferous tubules?


Which of the following contains a fluid filled cavity called antrum?


It The cell division in secondary oocyte is suspended at ______.


Connective tissue around seminiferous tubules possess endocrine cells called ______.


Cells of corona radiata remain grouped together by ______.


Gray crescent is the area ______.


How many sperms are formed from 4 primary spermatocytes?


In oogenesis haploid egg is fertilised by sperm at which stage?


If for a species 2n = 16, then during Ist prophase and IInd prophase of the meiotic division of a cell, how many tetrads and diads will be formed:


The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n = 50 shall be:


Human milk differs from cow's milk because human milk contains:


What is spermatogenesis?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×