"The combination of sperm and egg gives birth to a new life" PPT courseware

Description

"The combination of sperm and egg gives birth to a new life" PPT courseware

Part One: Introduction of New Course

Where did I come from?

learning target

1. Overview the structure and function of the male and female reproductive systems;

2. Explain that testicles and ovaries are the main reproductive organs of males and females respectively.

The life of an individual organism is limited

How does the life of the race continue?

Through the reproductive process, new individuals can be produced from generation to generation, allowing the life of the race to continue.

The composition and functions of the human reproductive system

The male and female reproductive systems are composed of a series of reproductive organs

The reproductive process of the human body is completed under the joint action of these reproductive organs.

The combination of sperm and egg gives birth to a new life PPT, Part 2: The structure and function of the male reproductive system

components of male reproductive system

Testicles: produce sperm; secrete male hormones

Vas deferens: carries sperm

Penis: transports sperm to the female reproductive organ-the vagina

1. Produce sperm

2. Secrete male hormones

3. Transport sperm to the female reproductive organ-vagina

The combination of sperm and egg gives birth to a new life PPT, Part 3: The structure and function of the female reproductive system

components of female reproductive system

Fallopian tube (carrying egg cells and site of fertilization)

Ovary (produces eggs and secretes estrogen)

uterus the place where the fetus is conceived

Vagina (the channel through which sperm enters and exits the fetus)

functions of female reproductive system

Ovary: produces eggs and secretes estrogen

Receive sperm and provide a good development environment for fertilized eggs and embryos, etc.

1. Produce eggs

2. Secrete estrogen

3. Receive sperm and provide a good development environment for fertilized eggs and embryos.

The combination of sperm and egg gives birth to a new life PPT, Part 4: Feedback in class

1. Male reproductive organs include ( )

① Uterus ② Seminal vesicles and prostate ③ Vas deferens ④ Testis ⑤ Epididymis ⑥ Vagina

A.① ② ③ ⑤ B.② ③ ④ ⑤

C.② ③ ④ ⑥ D.③ ④ ⑤ ⑥

2. In the male and female reproductive systems, the organs that can produce germ cells are ( )

A. Prostate, uterus B. Testicles, ovaries

C. Epididymis, vagina D. Vas deferens, fallopian tube

Keywords: Jiangsu Education Edition seventh grade biology PPT courseware for the second volume is free to download, the combination of sperm and egg gives birth to a new life PPT download, .PPT format;

For more information about the PPT courseware "The Union of Sperm and Egg Breeds New Life", please click the "The Union of Sperm and Egg Breeds New Life" PPT courseware.

"Protecting the Biosphere-Start from Yourself" PPT:

"Protect the Biosphere - Start with Yourself" PPT Part One: The relationship between humans and the biosphere. Human survival and development depend on the biosphere. Human activities can also affect the biosphere. Domestic waste. Our country's current annual urban waste volume is 130 million tons. In the future, as city..

"Focus on the Biosphere - The Environment is Deteriorating" PPT:

"Focus on the Biosphere - The Environment is Deteriorating" PPT Part One Content: Introduction The natural environment and man-made environment that human survival depends on are both components of the biosphere. Environmental problems caused by human activities are threatening human survival and security. Humans should actively protect...

"Perceptual Information of the Human Body" PPT:

"Perceptual Information of the Human Body" PPT Part One Content: Perception of the External Environment Types of Human Body Sensations Vision (the eyes obtain the most information from the outside world) Hearing (the ears obtain the second largest amount of information from the outside world) Tactile sensation (the skin feels cold, Heat, pain, pressure and other stimulation...

File Info

Update Time: 2024-10-05

This template belongs to biology courseware Jiangsu Education Edition Seventh Grade Biology Volume 2 industry PPT template

Preview