Unit 2-Gamete Production And Fertilisation

Question 1

What is the function of the penis?

Answer 1

To insert the sperm into the vagina.

Question 2

What is the function of the urethra?

Answer 2

Release sperm (and urine).

Question 3

What is the function of the scrotum?

Answer 3

Holds the testes.

Question 4

What is the function of the testes?

Answer 4

Produces sperm and testosterone.

Question 5

What is the function of the prostate gland and the seminal vesicle?

Answer 5

Secrete fluids to maintain mobility and viability of sperm.

Question 6

What is the function of the sperm duct?

Answer 6

Transports sperm from the testes to the urethra.

Question 7

What are sperm?

Answer 7

The male gamete.

Question 8

What is meant by Germline and Somatic cells?

Answer 8

Germline

cells in the body (at any stage) which could pass their genes on to the next generation

Somatic

cells of the body other than the germline cells

Question 9

What cells are sperm produced from?

Answer 9

Germline cells

Question 10

Where are sperm cells produced?

Answer 10

In the seminiferous tubules of the testes.

Question 11

What is the term used that means sperm can swim?

Answer 11

Motile

Question 12

What produces the liquid that sperm swims in?

Answer 12

The prostate gland and the seminal vesicle.

Question 13

What is the liquid sperm swims in called?

Answer 13

Seminal fluid.

Question 14

What does the seminal fluid provide the sperm with?

Answer 14

Fructose for energy and enzymes to keep the liquid at the correct viscosity.

Question 15

What would happen if the seminal liquid was not the right viscosity?

Answer 15

The sperm would not be able to swim properly.

Question 16

Which hormone do the testes produce?

Answer 16

The male hormone called testosterone.

Question 17

What type of cell division produces gametes?

Answer 17

Meiosis

Question 18

What cells are testosterone produced in?

Answer 18

Interstitial cells.

Question 19

What is the function of the vagina?

Answer 19

Where sperm is deposited.

Question 20

What is the cervix?

Answer 20

Lower, narrow portion of the uterus where it joins with the top of the vagina.

Question 21

What is the function of the uterus?

Answer 21

Where the baby develops during pregnancy.

Question 22

What is the function of the endometrium?

Answer 22

Wall of the uterus where the embryo implants.

Question 23

What is the function of the oviduct?

Answer 23

Site of fertilisation.

Question 24

What is the function of the ovary?

Answer 24

Produces and stores ova/eggs.

Question 25

What type of cells are ova formed from?

Answer 25

Germline cells.

Question 26

What is each ovum surrounded by?

Answer 26

Each ovum is surrounded by a follicle.

Question 27

What does the follicle surrounding an ovum do?

Answer 27

Secretes hormones and protects the developing ova.

Question 28

What happens at ovulation?

Answer 28

Ova are released into the oviduct.

Question 29

What is a fertilised egg/ova known as?

Answer 29

A zygote.

Question 30

What is fertilisation?

Answer 30

Fertilisation is the fusion of the nucleus from the sperm cell with the nucleus from the ova.

Question 31

What does the zygote do after fertilisation?

Answer 31

The zygote begins to multiply into a ball of cells which implants into the endometrium for development.

Question 32

What happens to the ova if fertilisation does not occur?

Answer 32

The unfertilised ova passes out the body.