Biology Questions and Answers

(Greg DeLong) #1

Biology Questions and Answers


undergo meiosis II and produce four


spermatids (n). undergoes a maturation pEach spermatidrocess called (^)
spermiogenesis and four sperm cells
appear.



  1. What is the difference
    between spermatogonium and
    spermatocyte I?


The male germ cells are the


spermatogsituated in the testicles.onia (diploid cells, 2n) They matur (^) e
and by means ofspermatocytes I (2n) that will undergo mitosis give birth to (^)
meiosis.



  1. What is the difference
    between spermatocyte I and
    spermatocyte II?


The spermatocyte Ifirst division of meiosis (2n) undergoes the (meiosis I)
originating (haploid, n).two spermatocyte II



  1. What is the difference
    between spermatocyte II and
    spermatid?


The spermatids (the second division on) are the products off meiosis (meiosis (^)
II) in the malspermatocyte IIe gametogenesis. Each originates two
spermatids totaling four spermatids for
each spermatocyte I that enter meiosis.



  1. What is the difference
    between spermatids and
    sperm cells? What is the name
    of the transformation of
    spermatids into sperm cells?


Sperm cmatured spermatids that hells (the male gametes) arave alreadye (^)
undergone differentiation (appearance
of the flagellum, cytoplasm, formation oreduction of the acrosome,f the (^)
increase in the number of
mitochoprocess isndria). T called sphis differentiationermiogenesis.



  1. What is the acrosome of
    the sperm cell? How is it
    formed?


The acrosome is a structurcontains a great number of digestivee that (^)
enzymes, it is locateend of the sperm cell and in the anteriord it is formed by (^)
the union of Golgi apparatus vesicles.
The function orelease its enzymes when the sperm cellf the acrosome is to (^)
meets the egg cell to break the external
covering of the female gamete thusmaking fecundation possible.



  1. What is the function of the
    flagellum of the sperm cell?
    How is it formed?
    The flagellum oby the centrioles that migrate to f the sperm cell is mathe de
    region posterior to function is to promote locomotiothe nucleus. Itsn
    towards the egg cell.


http://www.biology-questions-and-answers.com
Free download pdf