YR2-CH5-LSN3a

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

HAVE READY:

• your Macbook
• your notebook
• PDF "Longman - 5.3"

LESSON 3

REPRODUCTION & INHERITANCE

Learning goals LSN 3:

• I know what parts belong to the human male reproductive system.
• I understand and can explain how these parts work.
• I know the difference between primary and secondary sexual characteristics 

Key words LSN 3:

• Cowper gland
• Epididymis
• Glans
• Penis
• Prostate gland
• Scrotum
• Semen
• Seminal Vesicles
• Sperm Cells
• Testicles
• Urethra
• Urine
• Vas deference (spermduct)

Sexual Reproduction in plants:

with the stamen and the carpels

pollination

fertilization

dispersal

germination

Asexual reproduction in plants:

with mitosis

runners

bulbs

tubers

cuttings & grafting

Sexual Reproduction in Animals

Most animals that have sexual reproduction have 3 phases:

1. Pre-Fertertilization (the gametes also known as sex cells are produced and prepared).
2. Fertilization (the sex cells are brought together somehow and melt together to form on cell "zygote").
3. Post-Fertilization (the zygote start dividing by mitosis and becomes and embryo which continues to grow).

Asexual Reproduction in Animals

1. Some very small animals are so small they can reproduce by mitosis.
2. A hydra can reproduce by budding, many species of jellyfish reproduce this way too.
3. Some animals can reproduce by means of fragmentation. This means that they can break off a piece of themselves and a whole new organisms can grow from that piece. Flatworms, starfish and seasponges can do this.

How do birds reproduce?

1. sexual reproduction
2. asexual reproduction

How do potato plants reproduce?

1. runners
2. cuttings
3. bulbs
4. tubers

How can starfish reproduce?

1. budding
2. fragmentation

How does and apple tree reproduce, sexually or asexually?

1. sexual reproduction
2. asexual reproduction

Primary sexual characteristics:

These are present at birth.

There is a clear difference between male and female.

Secondary sexual characteristics:

These develop during puberty under the influence of hormones.

These secondary sexual characteristics make the differences between males and females even clearer.

PRIMARY SEXUAL CHARACTERISTICS

SECONDARY SEXUAL CHARACTERISTICS

a penis

a vagina

a beard

breasts

THE MALE REPRODUCTIVE PARTS

1. SPERMDUCT 
2. SEMINAL VESICLE GLAND AND COWPER GLAND
3. PROSTATE
4. EPIDIDYMIS
5. TESTICLES
6. SCROTUM
7. PENIS
8. BLADDER
9. URETHRA
10. GLANS
11. FORESKIN

Video:

• The following slides are a video and questions about the video.
• He speaks quickly I know.
• He goes into more detail than you need to know, but the animations are very good.
• Try to keep up and take notes about the parts and functions of the male reproductive system.

02:06

What is the names of the organ that holds the testes (testicles) outside of the male body?

1. penis
2. scrotum
3. sperm duct
4. stomach

02:36

don't panic

this next part is way too complicated again!

Where are sperm cells produced?

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

Where is a man's urethra?

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

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

Where is the most sensitive point of the male reproductive system?

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

Please be honest, what did you think of this lesson.

Homework for lesson 4:

• Read all pages of longman 5.2 
• Make questions 1 - 7 longman 5.2