Class 12, Zoology PPT - 7. Human Health and Diseases (Part 1)

Class 12, Zoology PPT - 7. Human Health and Diseases (Part 1)



CLICK HERE TO ATTEND ONEWORD ONLINE TEST 

Chapter outline

7.1 Common diseases in human beings
7.2 Maintenance of personal and public 
hygiene
7.3 Adolescence – Drug and alcohol 
abuse
7.4 Mental health – Depression 
7.5 Lifestyle disorders in human beings


 Learning Objectives

➢ Learns about various bacterial, viral, fungal, protozoan and helminth diseases.
➢ Understands the life cycle of malarial parasite.
➢ Learns the ill effects of drugs and alcohol.
➢ Realizes the responsibility for their behaviour, health care and life styles.
➢ Understands the importance of mental health and life style modifications to be followed for
their well being.

Human Health and Diseases - Memory Hints


1. Viral diseases


Common cold → Rhinovirus → respiratory droplets. Common cold spreads through Rhinovirus via droplets.

Dengue → Dengue virus → Aedes mosquito. Dengue spreads by Dengue virus carried by Aedes mosquito.

AIDS → HIV → system. AIDS is caused by HIV which attacks the system.

Hepatitis → Hepatitis viruses → liver. Hepatitis attacks the liver through Hepatitis viruses.

2. Bacterial diseases

Typhoid → Salmonella typhi → contaminated food/water. Typhoid is caused by Salmonella typhi found in contaminated food and water.

Tuberculosis → Mycobacterium tuberculosis → air droplets. Tuberculosis spreads through Mycobacterium tuberculosis in air droplets.

Cholera → Vibrio cholerae → contaminated water/food. Cholera spreads by Vibrio cholerae, in contaminated water and food.

Pneumonia → Streptococcus → respiratory infection. Pneumonia is caused by Streptococcus pneumoniae which leads to infection.

3. Fungal diseases 

Ringworm → Microsporum, Trichophyton, Epidermophyton → skin. Ringworm involves fungi Microsporum, Trichophyton, Epidermophyton that infect skin.

Hint: "Fungi love moist places. Remember that fungi thrive in moist places.

4. Helminthic diseases

Ascariasis → Ascaris lumbricoides → contaminated food/water. Ascariasis is caused by Ascaris lumbricoides found in contaminated food and water.

Filariasis → Wuchereria bancrofti → mosquito vector. Filariasis is transmitted by Wuchereria bancrofti carried by mosquito vector.

Taeniasis → Taenia solium → pork. Taeniasis occurs when Taenia solium is ingested from pork.

Comments

Post a Comment

Popular posts from this blog

Class 12, Bio-Botany - Key points, Lesson-1, Asexual and Sexual Reproduction in Plants / தாவரங்களில் பாலிலா இனப்பெருக்கம் மற்றும் பாலினப்பெருக்கம்

Image
  Lesson-1  Asexual and Sexual Reproduction in Plants CLICK HERE TO ATTEND BOOK BACK ONEWORD ONLINE TEST / புத்தக வினா தேர்வு எழுத இங்கே சொடுக்கவும்.  Reproduction is one of the attributes of living things. Lower plants, microbes and animals reproduce by different methods (fragmentation, gemma, binary fission, budding, regeneration). Organisms reproduce through asexual and sexual methods. Asexual methods in angiosperms occur through natural or artificial methods.  The natural methods take place through vegetative propagules or diaspores. Artificial method of reproduction involves cutting, layering and grafting. Micropropagation is a modern method used to raise new plants. CLICK HERE TO ATTEND BOOK BACK ONEWORD ONLINE TEST /  புத்தக வினா தேர்வு எழுத இங்கே சொடுக்கவும்.  Sexual reproduction includes gametogenesis and fertilization. External fertilization occurs in lower plants like algae but in higher plants internal fertilization takes place. A flower i...
Read more

Class 12, Bio-Botany - Quiz, Lesson-1, Asexual and Sexual Reproduction in Plants / தாவரங்களில் பாலிலா இனப்பெருக்கம் மற்றும் பாலினப்பெருக்கம்

QUIZ - 12th BIO-BOTANY (ASEXUAL AND SEXUAL REPRODUCTION IN PLANTS) YOU CAN - BIO-BOTANY BOOK BACK ONEWORD MOCK TEST TIME LEFT: 00:00 1. Asexual and Sexual Reproduction in Plants / தாவரங்களில் பாலிலா இனப்பெருக்கம் மற்றும் பாலினப்பெருக்கம் 19 Questions | 19 Minutes | Marks: 19 Student Name / மாணவர் பெயர் * Teacher Name / ஆசிரியர் பெயர் * Participant Email ID / மின்னஞ்சல் முகவரி * English Medium தமிழ் வழி 1 / 19 SCORE: 0 / 19 Switch Language / மொழி மாற்று Next Question Qu...
Read more

Class 12 - Bio-Botany - Key points 2. Classical Genetics / பாரம்பரிய மரபியல்

Class 12 - Bio-Botany -  Key points Lesson 2 - Classical Genetics / பாரம்பரிய மரபியல் CLICK HERE TO ATTEND BOOKBACK ONEWORD ONLINE TEST / புத்தக வினா தேர்வு எழுத இங்கே சொடுக்கவும்.  Extra-nuclear inheritance: It is a result of genes that are found in mitochondria and chloroplasts. Test cross: To determine the gametes of a plant that has the genotype AaBb it should be crossed with a plant that has the genotype aabb. Gametes calculation: A plant that has the genotype AABbCC produces two types of gametes. Polygenic inheritance: This is when multiple genes control a trait, an example being skin color in humans. Dihybrid cross phenotypes: When you cross RRYY with rryy you get seeds with yellow cotyledons and other combinations in the F2 generation. Test cross definition: This is when the F1 hybrid is crossed with a recessive genotype. Test cross ratio: When a heterozygous yellow seed plant is crossed with a seeded plant the F1 generation has a 50:50 ratio. Link...
Read more