Pathogen

Q.

List down ten diseases and their causative agents.

Q. What are peptic ulcers ?

Q.

What is capsid in a virus?

Q.

Is there a cell wall in viruses?

Q.

What are the five signs of an infection?

Q.

Do viruses have a protein coat?

Q. Match the following diseases with their causative organisms:

Column-I	Column-II
a. Filariasis	(i) Entamoeba
b. Amoebiasis	(ii) Plasmodium
c. Malaria	(iii) Salmonella
d. Typhoid	(iv) Wuchereria

1. a(i). b(ii). c(iii). d(iv).
2. a(iv). b(i). c(ii). d(iii).
3. a(iii). b(iv). c(ii). d(i).
4. a(iii). b(iv). c(i). d(ii).

Q. Write short notes on

(a) Tuberculosis.

Q. Which among the following diseases are caused by eukaryotic organisms?

1. Sleeping sickness
2. Typhoid
3. Cholera
4. Malaria

Q. What causes Japanese encephalitis ? Explain how it can be prevented .

Q.

Cholera is caused by a protozoan.

1. True
2. False

Q.

On which factor does the severity of disease manifestations depend ?

Q.

Are prions microbes?

Q. Typhoid causing bacteria enters through the mouth and stays in the _____.

1. lungs
2. gut lining
3. liver
4. heart

Q.

The information in which alternative completes the given statement?

1. 

2. 

3. 

4. 

Q.

Match column I with column II and select the correct answer using the codes given below the columns:

$\begin{array}{cc}Column-I\left(Diseases\right)& Column-II\left(Cause\right)\\ A.Smallpox& P.Bacteria\\ B.Cholera& Q.Virus\\ C.Malaria& R.Deficiencyofminerals\\ D.Anaemia& S.Femalemosquito\end{array}$

1. A-S; B-Q; C-R; D-P
2. A-Q; B-P; C-S; D-R
3. A-S; B-R; C-Q; D-P
4. A-R; B-S; C-P; D-Q

Q. What is the main cause of peptic ulcer?

1. Over eating
2. Pathogen
3. Unhealthy food habits
4. Spicy food

Q.

How does the common cold differ from pneumonia?

Q. Explain the role of viruses in human welfare. (2 Marks)

Q.

One of your friends is suffering from fever along with cough. He/She is experiencing shaking chills and shortness of breath. Can you identify the disease by these symptoms and also its causative agent? Which organ system according to you has been affected by this disease? What will you advise your friend?

Q. Amoebiasis can be prevented by

1. Administration of vaccines
2. Preventing contamination of food by flies
3. Giving oral rehydration
4. Giving a dose of chloroquine

Q. Which among the following is a soil - borne disease?

1. Plague
2. Typhoid
3. Tetanus
4. Cholera

Q. Sheela is a volunteer for the clean environment initiative and she went on the cleaning and filling up of potholes. Next day, she started feeling uneasy and was down with the fever and weakness. The lab report revealed that she is suffering from malaria. What is the causative agent for the infection?

1. Mosquito
2. Protozoa
3. Lack of sanitation
4. Sheela's weak immune system

Q. Mostly, the diseases are spread by people coming in contact with a .

1. pathogen
2. allergic person
3. weak person

Q.

‘Pathogens’ were discovered by

1. Edward Jenner

2. William Harvey

3. Pateur

4. Robert Koch

Q.

Which of the following statement is false?

1. Incubation period for malaria is about 3 weeks.

2. Male Anopheles mosquito acts as a carrier for malaria

3. Incubation period for amoebiasis is about 1 week

4. Amoebiasis spreads through food and water contaminated by flies

Q.

Identify A and B in the given table.

$\begin{array}{ccc}\text{Disease}& \text{Mode of infection}& \text{Symptom}\\ \text{(1) Sleeping sickness}& \text{Transmitted through}Glossina& \text{(A) \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}\\ \text{(2) Ascariasis}& \text{(B) \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}& \text{Abdominal discomfort}\end{array}$

1. (A) - Seizures
   (B) - Spreads through contaminated food
2. (A) - Flaky skin
   (B) - Spreads through contaminated food
3. (A) - Swollen foot
   (B) - Spreads through a vector
4. (A) - Seizures
   (B) - Spreads through air

Q.

Cholera is caused by ______.

Q. A person is suffering from a disease X. Microbes causing the disease enter the body through a mosquito bite. They reach the liver and then enter and infect the RBCs. Identify the disease X.

1. Japanese encephalitis
2. Jaundice
3. Malaria
4. Dengue

Q.

__ are the organisms that help in the spread of a disease from an infected person to a healthy person by carrying the disease-causing pathogens.