Spermatogenesis and Oogenesis

Question 1

The formation of sperm cells that occurs in the testes where it is produced.

Answer 1

Spermatogenesis

Question 2

Where does spermatogenesis occur?

Answer 2

Spermatogenesis occurs in the testes in coiled tubes.

Question 3

Spermatogenesis occurs in the testes in coiled tubes called _.

Answer 3

seminiferous tubules

Question 4

In humans, how long does spermatogenesis take?

Answer 4

64-75 days

Question 5

Spermatogenesis begins when these found near the outer wall of the tubules, divide constantly by mitosis…

Answer 5

spermatogonia

Question 5

Spermatogonia are also called?

Answer 5

diploid cells

Question 6

Spermatogenesis begins when spermatogonia, the diploid cells, found near the outer wall of the tubules, divide constantly by _, further developing…

Answer 6

mitosis

Question 7

Spermatogenesis begins when spermatogonia, the diploid cells, found near the outer wall of the tubules, divide constantly by mitosis, further developing into?

Answer 7

primary spermatocytes

Question 8

These are discharged along with urine. They form on the onset of puberty, then testes start to produce _.

Answer 8

Sperm cells

Question 9

The life span of sperm cells.

Answer 9

Every after 3 days or 72 hours.

Question 10

This is hygienic. It serves to make males’ genitals clean. It is a biological process. If this is not done, it will form a pouch that will lead to diseases like UTI and many more; and it would be dirty, stinky since urine is a body waste.

Answer 10

Circumcision

Question 11

How many chromosomes does diploid have?

Answer 11

46 chromosomes

Question 12

How many chromosomes does haploid have?

Answer 12

23 chromosomes

Question 13

Cell division. The process where our cells are divided.

Answer 13

Mitosis

Question 14

The four stages of Mitosis.

Answer 14

P - Prophase
M - Metaphase
A - Anaphase
T - Telophase

Question 15

What does spermatogenesis produce?

Answer 15

Spermatogonia

Question 16

Are spermatogonia matured?

Answer 16

No.

Question 17

After spermatogenesis produced spermatogonia, it will develop into?

Answer 17

Primary Spermatocytes

Question 18

Primary Spermatocytes undergo Meiosis I, then further develops into

Answer 18

Secondary Spermatocytes

Question 19

SPERMATOGENESIS → SPERMATOGONIA → PRIMARY SPERMATOCYTES → SECONDARY SPERMATOCYTES → _ → _

Answer 19

SPERMATIDS; SPERMATOGONIUM

Question 20

The production of gametes/sex cells.

Answer 20

Meiosis

Question 21

The common body cells between male and female that undergo mitosis.

Answer 21

Somatic Body Cells

Question 22

Somatic Body Cells has 46 chromosomes, which is why it is also called _.

Answer 22

diploid cells

Question 23

2 Categories of Meiosis.

Answer 23

Meiosis I and Meiosis II

Question 24

The stage where sperm cells and egg cells become 23 cells to be ready for their next phases.

Answer 24

Fertilization

Question 25

The primary spermatocytes then undergo meiosis I, each producing _, with haploid number of chromosomes.

Answer 25

two secondary spermatocytes

Question 26

The secondary spermatocytes undergo meiosis II and produce daughter cells, which are also called? They become mature and flagellated to form sperm cells.

Answer 26

spermatids

Question 27

How long does the maturation process of spermatids usually take?

Answer 27

9 to 10 weeks

Question 28

Where are sperm cells stored until ejaculation?

Answer 28

Epididymis

Question 29

The development of an ovum that occurs in the ovary.

Answer 29

Oogenesis

Question 30

The ovary at birth contains all the _ (from which ova are formed) a female will ever have.

Answer 30

follicles

Question 31

What reproductive organ at birth contains all the follicles (from which ova are formed) a female will ever have?

Answer 31

ovary

Question 32

The diploid cells in the ovaries or oogonia undergo _ producing daughter cells.

Answer 32

Mitosis

Question 33

The diploid cells in the ovaries or oogonia undergo mitosis producing daughter cells called _, each residing in a follicle.

Answer 33

Primary Oocytes

Question 34

How many primary oocytes are produced when the female baby is born?

Answer 34

Around 2 million primary oocytes

Question 35

How many primary oocytes remain by the time a female reaches seven years old, since most of primary oocytes are reabsorbed in the body?

Answer 35

300 000

Question 36

The primary oocytes remain dormant for a time in the _ until it can be triggered hormonally to develop further.

Answer 36

Prophase of Meiosis I

Question 37

About every 28 days after puberty, _ stimulates one of the dormant follicles to develop and the primary oocyte completes meiosis I.

Answer 37

FSH from anterior pituitary gland

Question 38

The FSH from anterior pituitary gland stimulating one of the dormant follicles results in daughter cells with?

Answer 38

* unequal division of cytoplasm * a single secondary oocyte receiving almost all of the cytoplasmic content * a smaller daughter cell called first polar body with almost no cytoplasm

Question 39

A smaller daughter cell is called?

Answer 39

first polar body

Question 40

This is released by the ovary during ovulation. This is one of the events in the menstrual cycle.

Answer 40

Secondary Oocyte