Structure and Characteristics of Protozoa

Q.

60.Who discovered that Anopheles mosquito is the vector of malaria, and how was he awarded ?

Q. Which of the following diseases is caused by protozoa?

1. Tuberculosis
2. Polio
3. Typhoid
4. Malaria

Q. Match the causative organisms with their diseases:
$\begin{array}{cc}ColumnI& ColumnII\\ A.Haemophilusinfluenzae& 1.Malignantmalaria\\ B.Entamoebahistolytica& 2.Elephantiasis\\ C.Plasmodiumfalciparum& 3.Pneumonia\\ D.Wuchereriabancrofti& 4.Typhoid\\ E.Salmonellatyphi& 5.Amoebiasis\end{array}$

1. B
2. C
3. A
4. D

Q. How do mosquitoes carry disease-causing micro-organisms and spread diseases?
[2 marks]
[Lakhmir Singh]
[Protozoan diseases]

Q. The disease caused by a protozoan and spread by an insect is known as ______ .

1. malaria
2. measles
3. polio
4. dengue

Q. mosquitoes are the causative agents of malaria.

1. Female Aedes
2. Male Anopheles
3. Male Aedes
4. Female Anopheles

Q.

Which of the following diseases is caused by a protozoan?

1. Chicken pox

2. Pneumonia

3. Tuberculosis

4. Amoebic dysentery

Q. Malaria is caused by a protozoan called Plasmodium.

1. True
2. False

Q. Arrange the steps involved in the spread of malaria in the correct sequence.

1. Mosquito bites
2. Pathogen enters
3. Infects liver
4. Symptoms appear

Q. Female Anopheles mosquitoes are the vectors that spread malaria.

1. False
2. True

Q. Which of the following is a disease caused by protozoans?

1. Tuberculosis
2. Polio
3. Typhoid
4. Malaria

Q. Carrier of malaria-causing protozoan is:

1. Female Anopheles mosquito
2. Male Anopheles mosquito
3. Male Aedes mosquito
4. Female Aedes mosquito

Q. Amoeba is a unicellular organism without a definite shape.

1. False
2. True

Q. Several microorganisms cause diseases in plants and reduce yield. Which of the following plant diseases is incorrectly matched with its causal microorganism?

1. Rust of wheat - Fungi
2. Citrus canker - Bacteria
3. Tobacco mosaic - Virus
4. Yellow vein mosaic of bhindi - Bacteria