Infections Caused by Worms

Q.

Write about the transmission of viruses in plants.

Q. Elephantiasis or filariasis is caused by Wuchereria bancrofti and Brugia malayi. The major symptoms are:

1. Chronic inflammation of lymphatic vessels of lower limbs
2. Deformities of genital organs
3. Swelling of scrotum
4. All of the above

Q. What do you mean by disarmed pathogen and what is its importance

Q. Which of the following endoparasites of humans show viviparity?

1. Enterobius vermicularis
2. Ancylostoma duodenale
3. Trichinella spiralis
4. Ascaris lumbricoides

Q.

What are Anthrax and its causes? What is the causative agent of anthrax?

Q. Infection of Ascaris usually occurs by :

1. Drinking water containing eggs of Ascaris
2. Eating imperfectly cooked pork
3. Tsetse fly
4. Mosquito bite

Q.

What is an example of parasitic protozoa?

Q. Name a human disease, its causal organism, symptoms (any three) and vector, spread by intake of water and food contaminated by human faecal matter. [3]

Q.

The causative organism of elephantiasis belongs to the phylum

1. Arthropoda

2. Protozoa

3. Porifera

4. Nematode

Q. Which of the following is a parasitic alga on tea or coffee plants?

1. Cephaleuros
2. Sargassum
3. Oedogonium
4. Ulothix

Q. Which of the following is an incorrect match of the disease with its causative agent?

	Disease	Causative agent
a	Common cold	Rhinovirus
b	Filariasis	Wuchereria bancrofti
c	Amoebiasis	Variola virus
d	Chicken Pox	Varicella Virus

1. Common cold - Rhinovirus
2. Filariasis - Wuchereria bancrofti
3. Amoebiasis - Variola virus
4. Chicken Pox - Varicella virus

Q.

Which of the following is a disease caused by a nematode parasite?

1. filariasis

2. poliomyelitis

3. amoebiasis

4. leprosy

Q. Elephantiasis or filariasis is caused by Wuchereria bancrofti and B. malayi. The major symptoms are:

1. Chronic inflammation of lymphatic vessels of lower limbs
2. Deformities of genital organs
3. Swelling of scrotum
4. All of the above

Q. What is the scientific name of pinworm of man? (correct answer + 1, wrong answer - 0.25)

1. Trichinella spiralis
2. Trichuris trichiura
3. Dracunculus medinensis
4. Enterobius vermicularis

Q. ----- is the pathogen which is responsible for Ascariasis.

Q. Name the organisms which cause the following:(iv) Ascariasis

Q. The intermediate host of Schistosoma is

1. snail
2. housefly
3. sheep
4. mosquito

Q. The viviparous animals can produce a lesser number of young ones per litter when compared to the oviparous ones. Give reasons.​

Q. One of the major difference between taeniasis and cysticercosis is ___________.

1. Taeniasis is less serious disease than cysticercosis.
2. Humans are definitive hosts in taeniasis and intermediate host in cysticercosis.
3. Taeniasis is cause by adult tapeworm while cysticercosis is caused by eggs of Taenia.
4. All of the above.

Q. Cause of death in snake bite cases usually involve

1. Neurotoxicity
2. Destruction RBC's
3. Both A and B
4. Permanent contraction of muscles

Q. Select the correct combination(s) from the followings.

1. Kala-azar - phlebotomus
2. Rhabditiform larvae - Ascaris
3. Encephalitis -viral disease
4. All of the above

Q.

Write the symptoms of measles.

Q. Which of the following diseases is caused by a nematode?

1. Amoebiasis
2. Filariasis
3. Leprosy
4. Poliomyelitis

Q. Ascariasis is characterised by

1. Infection of the large intestine
2. Infection of the lymph nodes
3. Infection of the small intestine
4. Infection of the neck, skin and groin area

Q.

Which of the following diseases is caused by rubeola virus?

1. Influenza

2. Measles

3. Malaria

4. Dengue

Q. Short / long answer type questions:
Name the causative agents, symptoms and cure for the following diseases
(i) Malaria (ii) Filaria (Elephantiasis) (iii) Amoebiasis, (iv) Ascariasis, (v) Pneumonia.

Q. Wuchereria bancrofti is transmitted by

1. Tsetse fly
2. Anopheles mosquito
3. Culex
4. Sandfly

Q. Infection of Ascaris usually occurs by :

1. Drinking water containing eggs of Ascaris
2. Eating imperfectly cooked pork
3. Tsetse fly
4. Mosquito bite

Q. Name the causative agent and the main symptom of each of the following diseases.
(i) Filariasis
(ii) Rabies
(iii) Chicken pox

Q.

Comment: "The infections of tissue or organs depend on the entry point of microbes".