Definition of Disease

Q. Asthma is caused due to

1. Bleeding into pleural cavity
2. Infection of trachea
3. Infection of lungs
4. Spasm in bronchial muscles

Q.

Can microorganisms be harmful?

Q. Tick the appropriate answer:
(b) The unicellular organism causing malaria -

1. Plasmodium

2. Paramecium

3. Euglena

4. Amoeba

Q. All microorganisms cause diseases

1. False
2. True

Q. Match the columns I and II, and choose the correct combination from the options given.

	Column I		Column II
(1)	Typhoid	(a)	$Haemophilus$ $influenzae$
(2)	Pneumonia	(b)	$Trichophyton$
(3)	Filariasis	(c)	$Plasmodium$
(4)	Ringworm	(d)	$Salmonellatyphi$
(5)	Malaria	(e)	$Wuchereriamalayi$

1. $1—d$, $2—a$, $3—e$, $4—b$, $5—c$
2. $1—b$, $2—d$, $3—e$, $4—c$, $5—a$
3. $1—b$, $2—c$, $3—e$, $4—d$, $5—a$
4. $1—a$, $2—c$, $3—b$, $4—e$, $5—d$

Q.

What is meant by internal factors?

Q.

How do prions affect other proteins?

Q. Which is correctly named, correctly printed and correctly described?

1. $E.coli$—$Entamoeba$ $coli$, commonly occurring bacterium in human intestine
2. $Felis$ $tigris$—Indian tiger, well protected in Gir forests
3. $Musca$ $domestica$—Common house lizard, a reptile
4. $Plasmodium$ $falciparum$—Protozoan pathogen causing the most serious type of malaria

Q. Diseases can be caused by

1. Microbes
2. Malfunction of a body organ
3. Defective genes
4. All of the above

Q. A bacteriophage is

1. A bacterium attacking a virus
2. A virus attacking a bacterium
3. A stage in the life-cycle of bacterium
4. A virus attacking another virus

Q. Disease can be

1. A state wherein the body is not functioning optimally

2. A state of lack of homeostasis

3. A state of the body when one or more organs do not function properly

4. All of the above

Q. Disease is a state where the body is not functioning at its optimum.

1. False
2. True

Q. Disease is a state where the body is not functioning at its optimum.

1. False
2. True

Q. Diseases can be caused by

1. Microbes
2. Malfunction of a body organ
3. Defective genes
4. All of the above

Q. Disease can be

1. spasm in bronchial muscle

2. pain in lungs

3. alveolar wall degradation

4. damage in diaphragm

Q. All microorganisms cause diseases

1. True
2. False

Q. Which one of the following is a degenerative disease?

1. Thalassemia
2. Beri-beri
3. Cataract
4. Diabetes