Reprod_Long1

Set 1

Set 2

Set 3

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Label the diagram of an amniotic egg shown below.

Question 1

Set 1

Set 2

Set 3

Choose

allantois

albumen

shell

chorion

embryo

amnion

air pocket

yolk sac

Air pocket

Stores air and allows expansion of egg contents during incubation.

Yolk

Provides embryo with nutrients.

Amniotic fluid

Provides moisture to embryo.

Allows embryo freedom of movement.

Acts as a shock absorber.

Any 1

Chorion

Allows for gaseous exchange.

Allantois

Collects and stores nitrogenous wastes produced by embryo.

Say the term aloud to yourself first before clicking on the “?”.

Question 2

The Male Reproductive System

Study the diagram below, then answer the questions that follow.

bladder

prostate gland

seminal vesicle

urethra

vas deferens

epididymis

scrotum

penis

Label the diagram. Say the term aloud to yourself first before clicking on the “?”.

Name the structure that produces sperm. (1)

testis

Which structure is cut surgically to prevent sperm from being ejaculated? (1)

vas deferens

Name the constituents that make up semen. (4)

sperm; secretion from seminal vesicle, prostate gland and Cowper’s gland.

Which one of the glands shown on the diagram above is prone to becoming cancerous? (1)

prostate

At what temperature are sperm stored in a sperm bank? (1)

-180°C

Name the tube through which both urine and sperm pass out of the body. (1)

urethra

List five secondary male characteristics that are controlled by testosterone. (5)

Growth of facial, chest and pubic hair.

Brings about a voice change during puberty.

Encourages sperm maturation.

Promotes the development of the male sex organs.

Controls development and functioning of the prostate gland.

Name the cells that secrete the male sex hormone (1)

interstitial cells/cells of Leydig

Name the hormone that stimulates the secondary sexual characteristics in males. (1)

testosterone

Define "vasectomy" (1)

Severing/cutting the vas deferens on both sides.

Can a HIV positive man, who has had a vasectomy, pass the HI virus onto someone else? Explain. (3)"

Yes

HIV is found in body fluids like semen and blood, not in sperm cells. Fluids passing to another person still causes transmission of the virus.

Set 4

State one function of each of the following: (10)

testis

Questions source: DBE (Authorisation 11798)

- Greg Gopaul -