Classification of microbes - class-X
Description: classification of microbes | |
Number of Questions: 27 | |
Created by: Trisha Prashad | |
Tags: living world and classification of microbes diseases and immunity useful and harmful microbes biology economic importance of bacteria and fungi |
Which of the following disease is 100% fatal and mode of transmission is through infected animals?
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AIDS
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Rabies
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Tetanus
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Hepatitis-B
AIDS is transmitted sexually or through blood transfusion or from mother to fetus.
Tetanus is not transmitted from person to person or from animal to person.
Hepatitis-B is transmitted through blood and infected bodily fluids.
Rabies is a fatal viral disease of mammals, most often transmitted through the bite of a rabid animal.
Therefore, the correct answer is option b.
Which one of the following is an example of zoonosis disease?
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Measles
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Diptheria
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Leprosy
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Rabies
A zoonotic disease is a disease that is transmitted from animals to humans. They can be caused by viruses, bacteria, parasites and fungi. Measles is a viral disease in humans. Diptheria is caused by bacterium Corynebacterium diptheriae. Leprosy is chronic infection caused by bacteria Mycobacterium leprae.
Rabies is one such zoonotic disease caused by the rabies virus of the genus Lyssavirus.
Thus, the correct answer is option (D), 'Rabies'.
Dengue fever is transmitted by
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Aedes aegypti
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Culex fatigans
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Anopheles
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Aedes donovoni
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
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Culex
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Aedes
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Anopheles
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None of the above
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
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Virus
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Bacteria
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Algae
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Fungus
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
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Aedes
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Male Anopheles
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Female Anopheles
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Tsetse fly
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.
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A- (V), B- (I), C- (III), D- (II)
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A- (IV), B- (V), C- (III), D- (I)
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A- (V), B- (IV), C- (I), D- (II)
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A- (V), B- (IV), C- (II), D- (I)
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.
Which of the following disease is now considered nearly eradicated from India?
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Plague
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Kala azar
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Small pox
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Influenza
Smallpox is a very serious illness caused by a virus, called the variolavirus. Smallpox gets its name from the pus-filled blisters (or pocks), that form during the illness. Small pox is an acute highly communicable disease. It is caused by virus named variolavirus. Now it is nearly eradicated from India.
What are plant-like protists collectively called?
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Protozoans
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Algae
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Fungi
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Pseudopodia
A group of biology students were studying about the algae. They prepared a sample slide using a water sample drawn from a puddle. While observing the sample under microscope, they noted that those were living in the colony and the colony was coated with a jelly-like substance. Using these hints identify the organism.
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Ulva
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Sargassum
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Volvox
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Diatom
Volvox is a freshwater green alga. It is found in multicellular colonies. These colonies are known as "coenobium". They also move together in colonies.
Colourless, unicellular, cell wall bound, spherical or rod-shaped micro-organism lacking organized nucleus is called as
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Mycoplasma
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Virus
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Bacteria
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Cyanobacteria
According to five kingdom classification, bacteria are placed in kingdom monera. Organisms of kingdom monera are single celled and they have cell wall made up of peptidoglycans. Their nuclear membrane is absent, have single chromosome and do not have membrane bound cell organelles. DNA is double stranded and suspended in cytoplasm (called nucleoid).
Exoskeleton of coelenterates is
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Siliceous
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Chitinous
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Calcareous
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Both B and C.
Which of the following kingdom includes Amoeba?
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Porifera
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Protozoa
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Platyhelminthes
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None of the above
Which motile-stage of protozoa is helpful in feeding?
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Pseudopodium
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Cilia
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Flagella
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Tentacles
Yellow fever is a
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Viral disease
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Bacterial disease
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Protozoan disease
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None of the above
Yellow fever is an acute viral disease and spread by the Aedes aegypti mosquito. It is characterized by the fever, chill, loss of appetite, nausea
Thus, the correct answer is option A.
Which of the following disease is now considered to be eradicated from India?
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Plague
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Kala azar
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Small pox
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AIDS
Smallpox is an acute contagious disease caused by the variola virus of the orthopoxvirus family. It was one of the world's most devastating diseases known to humanity. But now it is completely eradicated from India through successful campaigns run by Indian Government. Hence, the correct answer is option C.
Which of the following pairs is not correctly matched?
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Dengue fever- Arbovirus
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Plague- Yersinia pestis
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Syphilis- Trichuris trichiura
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Sleeping sickness- Trypanosoma Gambiense
Dengue is the most common arboviral disease.
Plague is caused by the bacterium, Yersinia pestis.
Sleeping sickness is a parasitic disease of humans and other animals and is caused by the protozoa, Trypanosoma gambiense or T. brucei.
Syphilis is a sexually transmitted disease caused by the spirochete bacterium, Treponema pallidum. While Trichuris trichiura causes trichuriasis, a type of helminthic infection.
Therefore, the correct answer is option C.
Asd are formed in _____________.
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Ascobolus
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Saccharomyces
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Penicillium
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All the above
Match the items in column I with column II and choose the
correct option
Column I | Column II | ||
---|---|---|---|
(A) | Ascus | (1) | Spirulina |
(B) | Basidium | (2) | Penicillum |
(C) | Protista | (3) | Agaricus |
(D) | Cyanobaderia | (4) | Euglena |
(E) | Animalia | (5) | Sponges |
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(A)- (2),(,B ) - (3), (C) - (4), (D)- (5) , (E) - (1)
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(A) - (1), (B) - (2), (C) - (3), (D) - (5) , (E) - (4)
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(A) - (2), (B) - (5), (C) - (3), (D) - (1) , (E) - (4)
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(A) - (1), (B) - (2), (C) - (3), (D) - (4) , (E) - (5)
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(A) - (2), (B) - (3), (C) - (4), (D) - (1) , (E) - (5)
Ascus (mother cell) in penicillium is related to its sexual development. Basidium also forms in sexual reproduction of Agaricus during karyogamy. Eglena is single cellular eukaryotes belonging to kingdom Protista. Spirula is dietary supplements which are biomass of cyanobacteria or blue-green algae. Sponges are the most primitive organisms of kingdom Animalia.
The correct answer is E.
Encephalitis is a viral disease of humans which is transmitted by
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Anopheles
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Culex
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Aedes
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Culex and Aedes
Encephalitis is acute inflammation (swelling up) of the brain resulting either from a viral infection or when the body's own immune system mistakenly attacks brain tissue. The most common cause is a viral infection. Encephalitis occurs in 1 in every 1,000 cases of measles. Encephalitis generally begins with fever and headache. The symptoms rapidly worsen and there may be seizures (fits), confusion, drowsiness and loss of consciousness and even coma. It is transmitted to humans through the bite of infected Culex species mosquitoes, particularly Culex tritaeniorhynchus.
Which one of the following is a common disease caused by a virus?
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Yellow fever
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Typhoid
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Syphilis
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Tetanus
Tetanus and typhoid are bacterial diseases caused by bacteria. Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum subspecies pallidum. Yellow fever is caused by a flavivirus and transmitted by the bite of mosquitoes, usually the Aedes aegypti mosquito, which had become infected by biting an infected human. Hence, the correct answer is option A.
The vector carrying virus which causes yellow fever in humans is a
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Mosquito
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Bug
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Louse
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Beetle
Yellow fever is an acute viral fever caused by a flavivirus. It is transmitted by the bite of mosquitoes, usually the Aedes aegypti mosquito. It is characterized by a headache, chills, loss of appetite, nausea etc. In severe cases, yellow fever causes a high fever, bleeding into the skin and the death of cells in the liver and kidneys. Liver damage results in severe jaundice i.e., yellowing of the skin; hence the name "yellow fever". Thus, the correct answer is option A.
Common cold differs from pneumonia in, that
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Pneumonia is a communicable disease, whereas, the common cold is a nutritional deficiency disease.
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Pneumonia can be prevented by a live attenuated bacterial vaccine, whereas, the common cold has no effective vaccine.
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Pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae.
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Pneumonia pathogen infects alveoli, whereas, the common cold affects nose and respiratory passage but not the lungs.
- The common cold is a viral disease, which is caused by a viral infection of the upper respiratory tract (nose and throat), whereas, pneumonia is an inflammatory condition of the lung affecting primarily the microscopic air sacs known as alveoli.
- It is usually caused by infection with viruses or bacteria and less commonly other microorganisms. Typical symptoms include a cough, chest pain, fever, and difficulty breathing.
Hence, Option D is correct.
Wheel animalcules are
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Coelenterates
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Echinoderms
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Rotifers
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Protozoans
- Animalcule is an older term for a microscopic animal or protozoan.
- Rotifers are microscopic and free-living microscopic or near-microscopic pseudocoelomate animals belonging to the phylum Rotifera.
- 90% of rotifers inhabit freshwater habitat but some live in brackish water and few in the ocean.
- Rotifers are called wheel animalcules because their corona is composed of several ciliated tufts around the mouth that in motion resemble a wheel.
- Hence wheel animalcules are Rotifers.
- So, the correct answer is 'Rotifers'.
In most simple type of canal system of Porifera, which of the following ways exhibit water flow?
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Ostia $\longrightarrow$ Spongocoel $\longrightarrow$ Osculum $\longrightarrow$ Exterior
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Spongocoel $\longrightarrow$ Ostia $\longrightarrow$ Osculum $\longrightarrow$ Exterior
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Osculum $\longrightarrow$ Spongocoel $\longrightarrow$ Ostia $\longrightarrow$ Exterior
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Osculum $\longrightarrow$ Ostia $\longrightarrow$ Spongocoel $\longrightarrow$ Exterior
State whether the following statement is true or false:
Some organisms, like amoeba, can be classified as animals and plants.
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True
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False
Amoeba, unicellular protozoan, outerly covered by plasma membrane, cell wall is not present. So amoeba is purely animal cell.
So, the statement is false.
Choose the correct answers from the alternatives given.
Which of the following is the most accurate general description of the kingdom Protista?
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Eukaryotic, photosynthetic or heterotrophic organisms that inhabit moist environments, form resistant cysts, and reproduce with flagellated gametes
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Relatively simple versions of plants, animals and fungi
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Eukaryotic, unicellular organisms that may be photosynthetic or heterotrophic
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Eukaryotic, heterotrophic and/or photosynthetic, unicellular or simple multicellular organisms, which are different enough from multicellular plants, fungi, or animals to be placed in this diverse group
Kingdom Protista is a group in of eukaryotic organisms which have a true nucleus, they are usually unicellular and the cells of these organisms contain nucleus which is bound to the organelle, algae are one of the classifications of protista which are photosynthetic organisms that are mostly found in freshwater sources or marine lakes. Protists are heterotrophic organism & on the other hand, has to acquire nutrition from other organisms such as plants or animals to survive.