Types of Diseases

Q.

If someone in the family gets infectious disease, what precautions will you advice to the other family members ?

Q.

Diseases that can spread from one person to another are called ___.

Q.

Organisms that are carriers of specific disease-causing germs, but they themselves don't cause any diseases, are called _______ .

1. vectors
2. virus
3. pathogens
4. germs

Q. The rate constant of a reaction with a virus is 3.3 10-4 s-1 time required for the virus to become 75% inactivated is

Q.

Write a short note on vaccines.

Q.

What is the difference between vaccines and antibiotics?

Q.

Who discovered the pathogen for the first time?

Q. Which of the following is not a function of WBC?

1. Identifying antigens
2. Engulfing pathogens
3. Remembering antigen for the previous infection
4. Killing old RBCs

Q.

Choose the correct statement from the following.

1. Antibiotics can kill bacteria and virus that cause an infection.

2. Many antibiotics are produced by bacteria.

3. Antibiotics enhance immunity and strengthen pathogen-fighting ability.

4. Antibiotics have no side effects.

Q.

Question 4
Which of the following disease is caused by bacteria?

(a) Typhoid
(b) Anthrax
(c) Tuberculosis
(d) Malaria

Q.

Name the following
Diseases that do not spread by contaminated air, water, food or insects.

Q.

Which of the following is non-communicable disease ?

1. Allergy

2. Malaria

3. Diarrhoea

4. Tuberculosis.

Q.

The interval between infection and appearance of a disease is known as

1. inoculation

2. penetration

3. infection period

4. incubation period

Q.

Infectious agents may spread through the air, water, physical contact, or vectors.

1. True
2. False

Q.

What is the mode of transmission of communicable diseases?

Q.

Why are infectious diseases called communicable diseases?

Q.

Malaria is caused by ___________ and spreads by ____________.

Q. Statement-I : The disease which lasts for a long time is called acute disease.

कथन-I : वह रोग जिसकी अवधि लंबी होती है, तीव्र रोग कहलाता है।

Statement-II : Elephantiasis is a chronic disease.

कथन-II : फीलपाँव एक दीर्घकालिक रोग है।

Consider the given statements and select the correct option.

दिए गए कथनों पर विचार कीजिए तथा सही विकल्प का चयन कीजिए।

1. Both the statements are correct
   
   दोनों कथन सही हैं
2. Both the statements are incorrect
   
   दोनों कथन गलत हैं
3. Only statement-I is correct
   
   केवल कथन-I सही है
4. Only statement-II is correct
   
   केवल कथन-II सही है

Q.

Name the disease-causing biological agent that is alive only inside the host cell.

1. Virus

2. Fungi

3. Bacteria

4. Protozoan

Q. Which of the following is not an acute disease?

1. Common cold
2. Pneumonia
3. HIV
4. Jaundice

Q. "For one's individual health, public hygiene is important."
Which options comply with the above statement?

1. Cutting nails regularly will prevent them from accumulating dirt.
2. Brushing teeth and flossing keeps one's mouth clean.
3. One must keep the rooms in his/her house clean.
4. Collecting and clearing garbage cans on the streets regularly helps prevent the spread of diseases.

Q.

How do vectors transmit pathogens?

Q. Anti-viral drugs can help in keeping _____ infection under control.

1. Tuberculosis
2. Malaria
3. Anthrax
4. HIV

Q. Smallpox vaccine was discovered by .

1. Galileo Galilei
2. Alexander Fleming
3. Louis Pasteur
4. Edward Jenner

Q. Name the disease the child will not suffer from if BCG vaccine is given.

Q. What are ‘broad spectrum antibiotics’? [Textbook Question 8a pg no. 95]

Q. Which of the following diseases spread through direct contact?

1. Hypertension
2. Chickenpox
3. Cancer
4. Diabetes

Q. Which among the following can be considered as the cause for non-infectious diseases?

1. Genetic abnormalities
2. Lack of exercise
3. Excessive weight
4. Stale food

Q.

Write an account about acute and chronic diseases.

Q. In which of the following cases getting vaccinated is necessary?

1. If a disease has high mortality rate.
2. If the disease is not prevelant in the present but has a high chance of appearing again in the future.
3. When there is a risk of contracting a particular highly pathogenic disease.
4. In the cases of diseases like goitre, dwarfism, etc.