Tag: the living world

Quizzes (21) Questions (85)

Questions Related to the living world

Multiple choice biology the living world botanical gardens, zoological parks and zoological museums museums and zoos tools of taxonomy

.......... are devices consisting of a series of contrasting or contradictory statements or propositions requiring the identifier to make comparisons and decisions.

  1. Herbarium

  2. Taxonomic keys

  3. Monograph

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

Taxonomic keys are written characteristic information that helps a person to identify an unknown species of living organism. The taxonomic key provides a certain structure on the basis of which the user can sort out the taxonomic position of the unknown species.

Taxonomic keys are devices consisting of a series of contrasting or contradictory statements or propositions requiring the identifier to make comparisons and decisions.

Multiple choice biology the living world botanical gardens, zoological parks and zoological museums museums and zoos tools of taxonomy

Refer to the given dichotomous key and select the correct option regarding cell organelles L - O.

I.   (a) Cell organelle bounded by double-membrane - Go to II
     (b) Cell organelle bounded by a single membrane - Go to III 
II.  (a) Directs cell growth and controls its activities - $\boxed{L}$
     (b) Provides colour to flowers and fruits -  $\boxed{M}$
III. (a) Removes dead cells and digests foreign material - $\boxed{N}$
     (b) Carries out some oxidative reactions in a cell -.$\boxed{O}$

  1. L could be Mitochondria whereas M could be Chloroplast.

  2. M could be Chromoplast whereas N could be Golgi apparatus.

  3. L could be Nucleus whereas O could be Peroxisome.

  4. M could be Leucoplast whereas N could be Vacuole.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Following the key: I(a) double membrane -> II. II(a) directs growth/activities -> Nucleus (L). II(b) color -> Chromoplast (M). III(a) digests -> Lysosome (N). III(b) oxidative -> Peroxisome (O).

Multiple choice zoology the living world history of classification of organisms introduction to classification of living organisms living world and classification

The headquarters of IUCN are at

  1. North America

  2. Rome

  3. South America

  4. Switzerland
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
IUCN stands for International Union for the Conservation of Nature and Natural Resources is the world's oldest global environmental organization to protect plants, animals and habitats having its headquarters in Gland, Switzerland.
So, the correct answer is option D.
Multiple choice zoology the living world history of classification of organisms introduction to classification of living organisms living world and classification

Which of the following scientist has made a significant contribution in the field of classification?

  1. Pasteur

  2. Oparin

  3. Darwin

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

Pasteur, Oparin and Darwin are the scientists who are known for their contributions in the field of microbiology, biochemistry (theory for the origin of life) and evolution (origin of species) respectively. Carl Linnaeus gave the Linnaean taxonomy and binomial nomenclature. The classification and the nomenclature were published in the book Systema Naturae which was written by Carl Linnaeus. The binomial nomenclature for the classification of the organisms is considered as an important contribution. 

Thus, the correct answer is option D. 

Multiple choice botany the living world archaebacteria the three domains of life classification of microbes

Organisms called methanogens are most abundant in a

  1. Hot spring

  2. Sulphur rock

  3. Cattle yard

  4. Polluted stream
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Methanogens are the primitive bacteria belonging to archaea which are able to produce methane through the process of methanogenesis. These organisms can utilise the carbon dioxide and hydrogen gas to form methane. These organisms are found in marshy areas where they produce the marsh gas, in swamps and in the stomach of cattle. The methane is released along with the other wastes by the cattle and so, methane is found abundantly in the cattle yard. 

Thus, the correct answer is option C. 

Multiple choice botany the living world archaebacteria the three domains of life classification of microbes

Archaebacteria and eubacteria have been included under the kingdom

  1. Monera

  2. Plantae

  3. Fungi

  4. Protista

  5. Animalia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Monera is a kingdom that includes prokaryotic unicellular organisms. It includes bacteria, Eubacteria, Archaebacteria, Cyanobacteria. They lack membrane-bound organelles. They also lack true nucleus. Instead, they have nucleoid, genetic material without nuclear envelope.

Thus, the correct answer is 'Monera.'

Multiple choice botany the living world archaebacteria the three domains of life classification of microbes

Archarbacteria with purple coloured pigment in cell membrane :

  1. Can survive in extreme saline conditions.

  2. Are chemoautotrophs

  3. Can use light energy to synthesize ATP

  4. Both (A) and (C)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Answer is option D i.e. "Both (A) and (C)"
Archarbacteria are salt loving bacteria that can live in strong salt solutions. Hence they are also called halophiles. In presence of strong sunlight they develop a purple colored pigmented membrane to utilize light energy producing ATP.

Multiple choice botany the living world archaebacteria the three domains of life classification of microbes

Archaebacteria that flourish in temperature above $100^0C $ have special ______ molecules that do not coagulate at high temperatures and remain functional. 

  1. carbohydrate

  2. ester

  3. protein

  4. fat
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Archaebacteria that flourish in temperature above 100 degree C have special protein molecules that do not coagulate at high temperatures and remain functional.
So, the correct answer is 'protein' 
Multiple choice botany the living world archaebacteria the three domains of life classification of microbes

Study the following statements and select the correct ones.
(i) Methanogens are archaebacteria which produce methane in marshy areas.
(ii) Nostoc is a filamentous blue green alga which fixes atmospheric nitrogen.
(iii) Many members of the genus Glomus form mycorrhiza.

  1. (i) and (ii)

  2. (i) and (iii)

  3. (ii) and (iii)

  4. (i), (ii) and (iii)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Methanogens are archaebacteria which produce methane in marshy areas. Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen. Many members of the genus Glomus form endomycorrhiza.
So, the correct option is '(i), (ii) and (iii)'