Tag: harmful microorganisms

Questions Related to harmful microorganisms

Dengue fever is transmitted by

biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi diseases and immunity classification of microbes useful and harmful microbes harmful microorganisms five kingdoms of living organisms

  1. Aedes aegypti

  2. Culex fatigans

  3. Anopheles

  4. Aedes donovoni

Show answer
Correct Option: A
Explanation:

Dengue fever is a mosquito-borne disease caused by the dengue virus. There is a characteristic skin rash that is similar to measles. It is transmitted by several species of mosquito within the genus Aedes, mainly Aedes aegypti.
Therefore, the correct answer is option A.

The vector of 'break bone fever' is

biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi diseases and immunity classification of microbes useful and harmful microbes harmful microorganisms five kingdoms of living organisms

  1. Culex

  2. Aedes

  3. Anopheles

  4. None of the above

Show answer
Correct Option: B
Explanation:

Break bone fever is another name for dengue fever. It is a mosquito-borne tropical disease caused by the dengue virus. It is transmitted by several species of the mosquito within the genus Aedes aegypti.
Therefore, the correct answer is option B.

Influenza is caused by 

biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi diseases and immunity classification of microbes useful and harmful microbes harmful microorganisms five kingdoms of living organisms

  1. Virus

  2. Bacteria

  3. Algae

  4. Fungus

Show answer
Correct Option: A
Explanation:

Influenza is commonly known as 'flu' and is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness and at times can lead to death. The best way to prevent the flu is by getting a flu vaccination each year.

Dengue is transmitted by

biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi diseases and immunity classification of microbes useful and harmful microbes harmful microorganisms five kingdoms of living organisms

  1. Aedes

  2. Male Anopheles

  3. Female Anopheles

  4. Tsetse fly

Show answer
Correct Option: A
Explanation:

Aedes aegypti, the principal mosquito vector of dengue viruses is an insect closely associated with humans and their dwellings. People not only provide the mosquitoes with blood meals but also water-holding containers in and around the home needed to complete their development. The mosquito lays her eggs on the sides of containers with water and eggs hatch into larvae after a rain or flooding. A larva changes into a pupa in about a week and into a mosquito in two days. 

Match the following with refernce to the insects and diseases.

List I List II
(A) Aedes (I) Dermatobiasis
(B) Cimex (II) Typhoid
(C) Psorophora (III) Encephalitis
(D) Musca (IV) Bubonic plague
(V) Break bone fever

Identify the sequence of list II with respect to List I.

biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi diseases and immunity classification of microbes useful and harmful microbes harmful microorganisms five kingdoms of living organisms

  1. A- (V), B- (I), C- (III), D- (II)

  2. A- (IV), B- (V), C- (III), D- (I)

  3. A- (V), B- (IV), C- (I), D- (II)

  4. A- (V), B- (IV), C- (II), D- (I)

Show answer
Correct Option: A
Explanation:

The Aedes aegypti mosquito can transmit the viruses that cause dengue fever or breakbone fever.
Psorophora columbiae mosquito is a known vector of encephalitis.
Diseases carried by house flies (musca domestica) include typhoid, cholera and dysentery.
Cimex (bed bug) causes dermatobiasis.

The disease pneumonia in humans which infects the alveoli of the lungs is caused by

classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

  1. Plasmodium

  2. Haemophilus influenzae

  3. Salmonella typhii

  4. None of the above

Show answer
Correct Option: B
Explanation:

Haemophilus influenzae is a small, pleomorphic bacteria which is the most often cause of pneumonia, a lung infection.
Therefore, the correct answer is option B.

Dengue is caused by 

classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

  1. Female Anopheles

  2. Female Aedes

  3. Male Anopheles

  4. All of the above

Show answer
Correct Option: B
Explanation:

Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Dengue is spread by several species of a mosquito of the female Aedes type, principally Aedes aegypti. Symptoms include high fever, headache, vomiting, muscle and joint pains, characteristic skin rash, bleeding, low levels of blood platelets and blood plasma leakage. So, the correct answer is 'Female Aedes'.

Aedes spreads 

classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

  1. Malaria

  2. Dengue

  3. Sleeping sickness

  4. Kala-azar

Show answer
Correct Option: B
Explanation:
  • Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Dengue is spread by several species of a mosquito of the  Aedes Type, principally A.aegypti.
  • Symptoms typically begin three to fourteen days after infection.[2] This may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash
  • Arbovirus is an informal name used to refer to any viruses that are transmitted by arthropod vectors. As dengue is transmitted by an arthropod vector(mosquito) its causative organism is called arbovirus. Hence Aedes spreads Dengue'.
  • So,the correct answer is 'Dengue'.

An antibiotic yielding fungus amongst the following is

classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

  1. Cladonia

  2. Parmelia

  3. Penicillium

  4. Aspergillus

Show answer
Correct Option: C
Explanation:

Penicillin sometimes abbreviated PCN or pen is a group of antibiotics derived from Penicillium fungi. Penicillin antibiotics were among the first drugs to be effective against many previously serious diseases, such as bacterial infections caused by staphylococci and streptococci. Penicillins are still widely used today, though misuse has now made many types of bacteria resistant.

Thus, the correct answer is option C.

Tourniquet test is for the diagnosis of 

classification of microbes living world and classification of microbes useful and harmful microbes harmful microorganisms biology

  1. Diphtheria

  2. Break bone fever

  3. AIDS

  4. Hepatitis A

Show answer
Correct Option: B
Explanation:

Tourniquet test determines the capillary fragility. It is a clinical diagnostic method to determine a patient's haemorrhagic tendency. It assesses fragility of capillary walls and is used to identify thrombocytopenia (reduced platelet count). This test is used for the diagnosis of dengue fever, also called as breakbone fever.
Therefore, the correct answer is option B.