(A)sexual reproduction & male reproductive system

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

 REPRODUCTION

1 + 1 = 3!

Which characteristic of life is needed to make sure a species does not go extinct?

1. Reproduction
2. Feeding
3. Breathing
4. Moving

In changing environments, which is better for a species?

1. Sexual reproduction
2. Asexual reproduction

Which statement is true about asexual reproduction:
1. you need one parent
2. the children are the same (form a clone)

1. Both statements are correct
2. Only statement 1 is correct
3. Only statement 2 is correct
4. Neither statement is correct

Some plants can be regrown completely from a single branch. Is this sexual or asexual reproduction?

1. Sexual reproduction
2. Asexual reproduction

What form of asexual reproduction is shown here?

1. Bulbs & tubers
2. Cutting & grafts
3. Cloning
4. Runners

Fragmentation (way of sponge reproduction) is a example of

1. Sexual reproduction
2. Asexual reproduction

Most plants make seeds, such as acorns. Is this sexual or asexual reproduction?

1. Sexual reproduction
2. Asexual reproduction

The male reproductive system

Today's planning

At the end of the lesson...

... you can explain where hormones are made

... you can name the different parts of the male reproductive system

... you can explain how a penis becomes erect and what happens when a man ejaculates

Hormones

Hormones are special chemicals your body makes to help it do certain things – like grow up! Hormones are important when you start to go through puberty, which is when you begin developing into an adult. During this time, you're loaded with hormones that tell your body that it's time to start changing.

Myth or truth:
women do not have testosteron

1. Myth
2. Truth

Let's check your pre-existing knowledge on the penis

Myth or truth:
penises are always straight

1. Myth
2. True

Myth or truth:
the average penis size in The Netherlands is approximately 9 cm when not erect and approximately 16 cm when erect

1. Myth
2. Truth

Myth or truth:
when a man has a larger penis, he will have more pleasure during sex than a man with a smaller penis

1. Myth
2. Truth

Myth or truth:
a wet dream is a signal that a man is fertile

1. Myth
2. Truth

semen = sperm cells + fluids seminal vesicles and prostate

02:10

What is the function of the testicles?

03:18

What are the two functions of the epididymis?

1. Production and storage of sperm cells
2. Production and maturation of sperm cells
3. Maturation and storage of sperm cells

03:28

Why do you think the the testes are located outside the male body?

Testes (zaadbal)

Sperm duct (zaadleider)

Epididymis (bijbal)

Bladder (blaas)

Erectile tissue (zwellichaam)

Prostate (prostaat)

Urethra (urinebuis)

SYNONYMS PENIS

Where are sperm cells produced?

1. in the penis
2. in the testicles
3. in the prostate
4. in the glans

The erectile tissue, inside the penis, is mostly made of....

1. bone tissue
2. muscle tissue
3. vascular tissue
4. connective tissue

Where is a man's urethra?

1. in the penis
2. in the testicles
3. in the prostate
4. in the glans

Transports semen out of the body:

1. 15
2. 10
3. 7
4. 8

Semen is another word for sperm.

1. True
2. False

Where are liquids produced that are added to the semen?

1. in the penis
2. in the testicles
3. in the prostate
4. in the glans

Semen is:

1. Sperm cells released during male orgasm.
2. The fluid which is released during male orgasm.

SYNONYMS VAGINA

Assignment

Find 3 comparisons between the male and female reproductive system 

Find 5 differences between the male and female reproductive system

(write them down somewhere so you can recall them the next lesson)

Next lesson

Female reproductive system

Menstrual cycle