Spermatogenesis

Q.

Describe the structure of a seminiferous tubule.

Q.

How many spermatids are formed from one primary spermatocyte?

Q. What would be the correct sequence of events inside the human female reproductive system?

1. Ovulation → Fertilisation → Zygote formation → Blastocyst
2. Fertilisation → Ovulation → Zygote formation → Blastocyst
3. Ovulation → Fertilisation → Blastocyst → Zygote formation
4. Ovulation → Zygote formation → Fertilisation → Blastocyst

Q. Describe the structure of a seminiferous tubule.

Q. Which of the following has multiflagellate sperms?

1. Anthoceros
2. Lycopodium
3. Riccia
4. Equisetum

Q. Match the following terms with their appropriate definitions.

1. A→(iv), B→(iii), C→(i), D→(ii)
2. A→(ii), B→(i), C→(iv), D→(iii)
3. A→(i), B→(ii), C→(iv), D→(iii)
4. A→(iii), B→(i), C→(iv), D→(ii)

Q. Which of the following labelled parts produces energy for the movement of the tail that facilitate sperm motility essential for fertilisation?

1. C
2. A
3. B
4. D

Q. IUT is a very popular method of forming embryos
in vivo. State whether true or false.If false give reason.

Q.

The site of maturation of human sperms is the

1. Seminiferous tubule

2. Interstitial cells

3. Epididymis

4. Prostate Gland

Q.

Prostaglandins are present in:

1. Blood

2. Seminal Fluid

3. Lymph

4. Neutral fats

Q.

Despite the sperms of Pteris and Funaria simultaneously being released near the archegonia of Pteris, only the sperms of Pteris enter the archegonia. Why?

Q.

The site of maturation of human sperms is the

1. Seminiferous tubule

2. Interstitial cells

3. Epididymis

4. Prostate gland

Q. How many sperms are produced from one primary spermatocyte?

1. $2$
2. $6$
3. $8$
4. $4$

Q. The process of development of spermatogonia into a mature spermatozoa is called .

1. spermiogenesis
2. spermiation
3. spermatogenesis
4. reduction division

Q. Write four differences between spermatogenesis and oogenesis.

Q. Describe spermatogenesis with the help of a diagram.

Q. Where does in the human male spermatogenesis occur?

1. Ovaries
2. Testes
3. Epididymis
4. Prostate gland

Q. Supporting cells found in between spermatogonia are

1. Epithelial cells
2. Lymph space
3. Germinal cells
4. Sertoli cells

Q. Which germ layer is first formed during human embryonic development

Q. Polyspermy is common in

1. Frog
2. Man
3. Birds
4. Sea-urchin

Q. Write note on : Spermatogenesis

Q. Sort the parts of the male reproductive system - pathway of the sperm from the site of production to release.

1. Vas deferens
2. Urethra
3. Testes
4. Epididymis

Q. Why is it important that a very large number of sperms should be present in the semen?

Q. In spermatogenesis the phase of maturation involves

1. the growth of spermatogonia into primary spermatocyte
2. the formation of spermatogonia from gonocytes through mitosis
3. the formation of oogonia from the spermatocytes through meiosis.
4. the formation of spermatids from primary spermatocytes through meiosis

Q. In spermatogenesis, reduction division of chromosome occurs during conversion of ____________________.

1. Spermatogonia to primary spermatocytes
2. Primary spermatocytes to secondary spermatocytes
3. Secondary spermatocytes to spermatids
4. Spermatids to Sperms

Q. cells present in the testes supports spermatogenesis.

1. Leydig
2. Cuboidal epithelial
3. Sertoli
4. Sperm

Q. Which one of the following is formed during the process of spermatogenesis?

1. Sperms
2. Ova
3. Estrogen
4. Corpus luteum

Q. Meiosis during sperm formation of Ascaris, was first observed by

1. Fleming
2. Boveri
3. Brauer
4. De Vries
5. Abbe

Q. Why more spermatozoa are formed as compared to ova?

Q. The process of development of spermatogonia into a mature spermatozoa is called .

1. spermiogenesis
2. spermiation
3. spermatogenesis
4. reduction division