Internal Structure of Testis
Trending Questions
Given below are the differences between spermatogenesis and spermiogenesis. Select the incorrect option.
Spermatogenesis - Growth and divisions occur
Spermiogenesis - Divisions and growth are absent
Spermatogenesis - A spermatogonium forms four spermatozoa
Spermiogenesis - A spermatid forms a single spermatozoon
Spermatogenesis - The process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis.
Spermiogenesis - Spermiogenesis is the final stage of spermatogenesis, which sees the maturation of spermatids into mature, motile spermatozoa.
Spermatogenesis - It changes a haploid structure into another haploid structure.
Spermiogenesis - It involves conversion of diploid structure into haploid structure.
How many sperms are produced from 200 secondary spermatocytes?
Non-keratinized stratified squamous epithelium is found in
Epidermis of skin of land vertebrates
Oral cavity and pharynx
Vagina and cervix
Both (2) and (3)
Any 2 difference between spermatogenesis, spermiogenesis and spermiation
Testosterone is secreted by?
a. Ovules generally differentiate as a single megaspore mother cell (MMC) in the chalazal region of the nucellus.
b. The MMC undergoes reduction division and produces four megaspores.
c. In a majority of angiosperms, one of the megaspores is degenerated while the other three remain functional.
d. The nucleus of the functional megaspore divides mitotically three times and forms 2-nucleate, 4-nucleate and later 8-nucleate stages of the embryo sac.
e. These mitotic divisions are strictly free nuclear, that is, nuclear divisions are immediately followed by cell wall formation.
- b, c and d
- c, d and e
- a, c and e
- a, b and c
How many sperms are produced from a single primary spermatocyte?
- Oviduct, uterus
- Cervical canal, urethra
- Uterus, uterine fundus
- Cervical canal, vagina
Where Are Leydig Cells Located? What Do They Secrete?
Semen composition includes the secretions of
- testes only
- seminal vesicles only
- prostate glands and bulbourethral glands only
- testes and the accessory glands
There are around ________ testicular lobules.
550
200
250
350
- Leydig's cells
- Sertoli cells
- sperms
- seminal fluid
Q. The diagram shown below is the longitudinal section of the testis of man. Study it carefully and answer the questions that follow-
- Label the parts numbered 1 to 3 in the diagram.
- In which part of the testis, are the sperms produced?
- State the functions of the parts labeled 1 and 3 in the diagram?
What is the function of Leydig’s cell?
Non keratinized stratified epithelium occurs in:
Vagina and cervix
Body cavity and anal cavity
Vagina, cervix, and buccal cavity
Vagina, cervix, buccal cavity, and anal cavity
- Blastoderm
- Blastocoel
- Blastopore
- Blastocyst
What is spermatogonium?
- Leydig cells
- Sertoli cells
- germ cells
- Both a and b
Name the cells of the testes that produce male hormones?
- a group of sperms
- the combination of secretions from the accessory glands
- an acidic fluid ejaculated out of penis
- the combination of seminal plasma and sperms
involves
- the growth of spermatogonia into primary spermatocyte
- the formation of spermatids from primary spermatocytes through meiosis
- the formation of spermatogonia from gonocytes through mitosis
- the formation of oogonia from the spermatocytes through meiosis
Spermatogenesis and spermiogenesis
- Corpus spongiosum only
- Corpus spongiosum and corpus cavernosa both
- Corpus cavernosa only.
- Corpus spongiosum forms major part and minor part is formed by corpus cavernosa.
Spermatogenesis is a continuous process?
- A - Vas deferens, B - Seminal vesicle, C - Bulbourethral gland, D - Prostate
- A - Ureter, B - Seminal vesicle, C - Prostate, D - Bulbourethral gland
- A - Vas deferens, B - Seminal vesicle, C - Prostate, D - Bulbourethral gland
- A - Ureter, B - Prostate, C - Seminal vesicle, D - Bulbourethral gland
(i) an X chromosome
(ii) a Y chromosome
(iii) 23 chromosomes
- (i) only
- (iii) only
- (i) or (ii)
- both (b) and (c)
What are differences between spermatogenesis and spermeiogenesis?