Answer

Answer is (c) Typhoid

Explanation:

Typhoid is caused by a bacterium called as Salmonella typhi

Answer

Answer is (d) Influenza

Explanation:

Cholera is caused by Vibrio cholera bacterium

Tuberculosis is caused by Mycobacterium tuberculosis bacteria Anthrax is caused by Bacillus anthracis bacteria.

Influenza is caused by Influenza virus hence option (d) is the right answer.

Answer

Answer is (c) Typhoid

Explanation:

Typhoid is transmitted through food and water.

Answer

Answer is (d) Malaria

Explanation:

Malaria is cause by protozoans called Plasmodium vivax hence (d) is the right answer

Answer

Answer is (a) Malaria

Explanation:

Malaria is caused by protozoan Plasmodium vivax.

Answer

Answer is (c) Chewing tobacco

Explanation:

Common cold and chicken pox are acute disease which will not produce any long term effect. Stress can be managed and will not have long term effect. Chewing tobacco is dangerous as it produce a long term effect.

Answer

Answer is (c) Sneezing

Explanation:

Sneezing is a symptom of common and other respiratory disease which are transmitted through inhaling of contaminated air. Other option provided in the question are not infectious disease hence they are not transmitted through human contact.

Answer

Answer is(b) hugs

Explanation :

AIDS is transmitted by exchange of body fluids. When we hugs there cannot be exchange of any body fluids hence Aids cannot be transmitted by hugs.

Answer

Answer is (c) viruses have very few biochemical mechanisms of their own

Explanation:

Antibacterial drugs stop certain biochemical reaction in the bacteria that kills the bacteria. But in virus there are few biochemical processes which are difficulty to target hence making anti-viral drugs is difficult.

Answer

Answer is (c) Leishmania

Answer

Answer is (c) Air borne diseases

Answer

Answer is (d) Pneumonia

Explanation:

Pneumonia is transmitted through air not mosquitos.

Answer

Answer is (d) Living in a large and well furnished house

Answer

Answer is (c) Peptic ulcers are caused by eating acidic food

Explanation:

Answer c is wrong because peptic ulcers are caused by a bacterium call as Helicobacter pylori

Answer

Answer is (b) are vectors for many diseases

Explanation:

Mosquitos are dangerous as they spread disease like Malaria, Dengue, Japanese encephalitis etc.

Answer

Answer is (c) it creates immunity in the body

Explanation:

Vaccines create immunity against the pathogens against which it is designed.

Answer

Answer is (b) water

Answer

Answer is (a) animals carry the infecting agents from sick person to another healthy person.

Answer

(a) Acute diseases - Flu, Viral fever

(b) Chronic diseases - Tuberculosis, Elephantisis

(c) Infectious diseases -Small pox, chicken pox

(d) Non-infectious diseases- Diabetes, Cancer

Answer

Malaria is caused by Plasmodium vivax

Kala azar is caused by Leishmania

Answer

Peptic ulcers are caused by bacterium Helicobacter pylori. This bacteria was discovered by Barry J Marshal and Robin Warren.

Answer

Antibiotic is a chemical agent that kills the bacteria or fungi by blocking their biochemical pathway. Ex: Streptomycin, Azithromycin.

Answer

(a) Pneumonia is an example of Bacterial disease.

(b) Many skin diseases are caused by Fungi.

(c) Antibiotics commonly block biochemical pathways important for the growth of Bacteria.

(d) Living organisms carrying the infecting agents from one person to another are called Vectors.

Answer

(a) Hepatitis targets Liver.

(b) Fits or unconsciousness targets Brain.

(c) Pneumonia targets Lungs.

(d) Fungal disease targets Skin.

Answer

Edward Jenner discovered vaccine. Polio and tetanus are the disease which can be prevented by using vaccines.

Answer

(a) Chronic disease continues for many days and causes long term effect on body.

(b) Acute disease continues for a few days and causes no longer term effect on body.

(c) Health is defined as physical, mental and social well-being and comfort.

(d) Common cold is viral disease.

(e) Many skin diseases are caused by Fungi.

Answer

(a) AIDS - Infectious disease

(b) Tuberculosis - Infectious disease

(c) Cholera - Infectious disease

(d) High blood pressure- non- Infectious disease

(e) Heart disease non- Infectious disease

(f) Pneumonia-Infectious disease

(g) Cancer- non- Infectious disease

Answer

Bacteria and fungi

Answer

Malaria transmitted by mosquitos

Rabies transmitted by mad dogs

Elephantisis is transmitted by mosquitos.

Answer

a) Food is essential for the growth and normal function of our body. Balanced diet is the one which consists of all the essential nutrients in an appropriate quantity. Balanced diet provided appropriate amount of biomolecules such as carbohydrates, lipids, proteins, vitamins and minerals which are very essential for our growth and body functioning. Imbalance in diet lead to many physical and physiological diseases.

b) Health is defined as physical, mental and social well-being and comfort. Health is always dependent on our surroundings and if our environment is unhygienic we get disease. We get cold and cough in rainy and winter season. Our environment conditions are very important for being healthy. c) Stangnant water is the breeding environment for mosquitos. Mosquitos spread many diseases like Malaria, Dengue, Elephantisis, chickungunys etc. In order to stop spread of these disease our surrounding should be free of stagnant water.

d) Human beings are social organisms. We live in different localities and environments. In order to lead a healthy life we have to keep our environment clean. We need good hygienic food to lead healthy life which depends on our earnings. We often encounter diseases, in order to get treatment we need money and our economic status should be strong to afford the treatments.

Answer

Each organs of an organ system has specific functions to do. When this functioning change or disrupt it leads to a condition called disease. These changes results in some adverse effects on body’s normal functioning and the changes observed are called signs and symptoms of the disease.

Types of Diseases

Acute:

Diseases that last for only very short periods of time, are called acute diseases. Ex: common cold

Chronic:

Diseases that last for a long time, even as much as a lifetime are called chronic diseases. Ex: elephantiasis.

Infectious:

Diseases which are caused by microorganisms are called infectious diseases. These disease can spread from one person to another by vectors or by other means such as air, food and water. Ex: Typhoid

Non- Infectious

Diseases that are not caused by infectious agents. Their causes vary, but they are not external causes like microbes that can spread in the community. Instead, these are mostly internal, non-infectious causes. Example: High blood pressure.

Answer

When we encounter with disease some or more parts of our body start behaving abnormal and give certain signs which are not normal. Such visible changes in our body are called as symptoms.

Ex: When we get cold our body responds and we start coughing and sneezing and in some cases our body temperature increase these changes in our body are the symptoms of common cold.

When we get Malaria our body temperature increases our body start shivering due to chills.

Answer

Immune system is the defense line of our body. Immune system comprise of different kind of cells that kills the infecting microorganism. When a pathogen enters our body our immune system send immune cells to fight and kill pathogens. If our immune system clear the disease causing pathogens we stay healthy. If our immune system fail to clear pathogen we encounter disease. In order to be healthy immune system is essential.

Answer

Precautions to take to avoid diseases are as follows

1. Maintaining personal as well as public hygiene is very essential

2. Awareness about causes, symptoms and source of diseases

3. Using clean water and avoid storage of water to avoid growth of mosquitos.

4. Balanced diet

5. Regular exercise will boost our immunity

6. Vaccination

Answer

There may be many reasons behind fall ill of few children . Some of them are listed below.

Lack of balanced diet leading to malnutrition

Weak immunity

Living in congested unhygienic conditions

Lack of clean drinking water and hygienic food

Missing vaccinations.

Answer

Antibiotics act on bacteria and fungi by blocking certain biochemical activities necessary for the living of bacteria. On the other hand virus has very few biochemical processes which are hard to target for antibiotic. Hence antibiotics are not effective against viruses.

Answer

Our immune system fight disease causing pathogens and clears them by killing to gives us protection from disease. When we get exposed to certain pathogen our immune system sends active cells that kill and clear the pathogen. Because of the immune system we don’t often get disease despite of getting exposed to infectious microbe.

Answer

Hygienic environment:

Clean water and a hygienic surrounding can keep us away from water and air borne diseases.

Personal Hygiene:

We should keep our body clean to be healthy.

Food:

Hygienic and nutritious food help to boost immune system hence balanced diet is essential for being healthy.

Vaccination:

Vaccination against severe disease is very essential to be healthy.

Answer

HIV AIDS is caused by HIV Virus which enter our body through body fluids such as blood and breast milk or by sexual means. HIV virus spread to lymphnodes and it block our immune system. This creates a condition where our body cannot fight minor diseases like common cold.

A person with HIV can get pneumonia from common cold, minor gut infection may turn into sever diarrhoea. In HIV a person will not have specific symptoms rather he will have a series of infections due hence HIV is called as a syndrome not a disease.