Tag: five kingdoms of living organisms

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Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Which of the following kingdoms is intermediate between kingdom monera and muiticellular organisms?

  1. Fungi

  2. Animalia

  3. Plantae

  4. Protista
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The monera is the kingdom which comprises of the prokaryotes. The Protista is a kingdom of simple single-celled eukaryotic organisms. They have well-developed cellular components like the nucleus, mitochondria, chloroplast, etc on the basis of which they have been classified as plant and animals like protists. The kingdom Protista is considered as the link between the prokaryotes and the multicellular eukaryotes. 
Thus, the correct answer is option D.  
Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Which of the following are the characteristics of kingdom Protista?

  1. Multicellular organisms whose chromosomes are not enclosed in a nuclear membrane.

  2. Unicellular organisms whose chromosomes are not enclosed in a nuclear membrane.

  3. Unicellular organisms whose chromosomes are enclosed in a nuclear membrane.

  4. Multicellular organisms whose chromosomes are enclosed in a nuclear membrane.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The Protista is a kingdom of simple single-celled eukaryotic organisms. They have well-developed cellular components like the nucleus, mitochondria, chloroplast, etc on the basis of which they have been classified as plant and animals like protists. The chromosomes are enclosed in the nuclear membrane. These are mostly aquatic organisms which have flagellated structures for movement. 
Thus, the correct answer is option C.  
Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

A symbiotic protist is

  1. Plasmodium

  2. Lophomonas

  3. Fuligo

  4. Trypanosoma
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lophomonas are the protists that can live in a symbiotic relationship or as a parasite in the body of their host. The hosts are arthropods, which could be termites, cockroaches in which lophomonas lives in their digestive system or intestinal tracts.

The correct answer is B.

Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

The first eukaryotes to evolve were

  1. Bryophytes

  2. Green algae

  3. Blue-green algae

  4. Protistans
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • The simple protists were similar to bacteria but they gradually evolved as eukaryotes wherein each cell is having a nucleus. 
  • They are not an animal, plant or fungus but they may be closely related to plants. 
  • They may survive alone or may group as per the convenience.
  • The correct answer is D. 

Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Which of the following is a symbiont?

  1. Vorticella

  2. Paramecium

  3. Colpidium

  4. Trichonympha
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Zootermopsis, the pine woods termite, contains vast numbers of the wood engulfing symbiont Trichonympha, along with a number of other species, such as the primitive flagellate, Streblomastix and Trichomonas, a genus commonly found in warm, moist interiors of virtual all species of animals. 
  • Trichonympha along with these huge cells are bacteria residing in the termite gut assist in breaking down the cellulose. Hence the correct option is D.
Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Entamoeba histolytica is

  1. Monogenetic

  2. Digenetic

  3. Free-living

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
This kind of protozoan parasite resides in the mucous and sub-mucous layer of the large intestine specially at the iliocaecal junction and cause dysentery, diarrhoea, hepatitis and liver abscess in man. Entamoeba  histolytica is a monogenetic parasite as its entire life history is completed in a single host.
So, the correct answer is 'Monogenetic'
Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Water collecting canals around the contractile vacuole are called _________.

  1. Incurrent canals

  2. Excurrent canals

  3. Radiating canals

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water collecting canals around the contractile vacuole are called Radiating canals The contractile vacuole is the part that contracts and forces extra water out of the cell. The radiating canals are the paths to the contractile vacuole. In Paramecium, these are two contractile vacuoles while one in Amoeba.

Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Macronucleus of Paramecium takes part in

  1. Transmission of hereditary characters

  2. Controlling normal cellular metabolism

  3. Production of variations and adaptability

  4. All the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Paramecium has two types of nucleus- micronucleus and macronucleus. Macronucleus perform common cellular functions and micronucleus takes part in sexual reproduction. 
Thus, the correct answer is option (B).
Multiple choice biology the world of microbes protista protozoa five kingdoms of living organisms

Maximum speed of a protist is

  1. 20 $\mu m/sec$
  2. 2.0 $mm/sec$
  3. 200 $\mu m/sec$
  4. 2 $ cm/sec$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • The movement of protists is affected by various surrounding factors,  certain protists move by special locomotive structures. 
  • Ciliated cells and flagellated cells move faster than others, but the flagellated cells are able to move as fast as 2.0 mm/sec.
  • The correct answer is B.