Plants Kingdom
Question: 1. Why do we classify
organisms?
Answer:- we
classify organisms to understand characteristics of life form on the
earth.
Question: 2. Give three examples of the
range of variations that you see in life forms around you.
·
Answer:- Three
examples of the range of variations in life forms:
·
Bacteria is microscopic
where as Red wood tree is giant
·
pine trees live for
years where as mosquito for few days
·
Variety of flower
having different colors
Question: 3. which do you think is a
more basic characteristic for classifying organisms?
(a) The place where
they live. (b) The kind of cells they
are made of. Why?
Answer: The kind of cells an
organism is made of is more basic characteristic of classifying organism
because form and function depends on cell
Question :- 4. What is the primary
characteristic on which the first division of organisms is made?
Answer: Habitat.
Question: 5. (a) On what bases are
plants and animals put into different categories?
(b) What is the basis on which living
things are identified and categorized?
Answer: (a) Body design and mode
and source of nutrition (b) On the
basis of structure, mode and source of nutrition and body organization
Question: 6. which organisms are called
primitive and how are they different from the so-called advanced organisms?
Answer: Groups of organisms which
have ancient body designs and do not have not changed very much yet is called
primitive. On the other hand, an organism acquired their particular body designs
recently is called advanced.
Question: 7. (a) Will advanced organisms
be the same as complex organisms? Why?
(b) How can we say that the
classification of life forms will be closely related to their evolution ?
Answer:
(a) No, this is because there
is a possibility that complexity in design will increase over evolutionary time
(b) As the characteristics that
have come into existence earlier are likely to be more basic than
characteristics that have come into existent latter.
Question: 8.What is the criterion for
classification of organisms as belonging to kingdom Monera or Protista?
Answer: Organisms which are
prokaryotes belong to the kingdom Monera and organism which are eukaryotes and
unicellular belong to the kingdom Protista.
Question: 9. In which kingdom will you
place an organism which is single-celled, eukaryotic and photosynthetic?
Answer: Protista
Question: 10. In the hierarchy of
classification, which grouping will have the smallest number of organisms with
a maximum of characteristics in common and which will have the largest number
of organisms?
Answer: Kingdom will have the
most number of organisms
Species will have the least
number of organisms.
Question: 11. Which division among
plants has the simplest organisms?
Answer: Thallophytic
Question: 12. How are pteridophytes
different from the phanerogams?
Answer: In pteridophytes, the
reproductive organs are hidden and they do not produce seeds. In phaenrogams,
reproductive organs are conspicuous[clearly visible.] and they produce seeds.
Question: 13. (a)How do gymnosperms and
angiosperms differ from each other
(b) What are the differences between
monocots and dicots?
Answer: (a) Gymnosperms bear naked seeds and do not bear flowers eg.
pines and deodar. Angiosperm have covered seeds and bear flower eg. pines and
deodar
(b) Monocots produce one leaf[cotyledons]
from the seed after germinating eg.Paphiopedilum
Dicots produce two. Monocots
produce parallel leaf veins; Decocts produce a net-like display of veins. e.g. Ipomoea
Question: 15. What is evolution ? Who
first of all gave the idea of evolution ?
Answer: All life forms that we see
today have arisen by an accumulation of changes in body design that allow the organism
possessing them to survive better is called evolution Charles Darwin first
described this idea of evolution in 1859 in his book, The Origin of Species
Question: 16. State the name of
scientist who proposed five kingdom classification systems of organisms.
Ans: Robert Whittaker in 1969 on
the basis of (i) cell structure (ii) mode and source of nutrition and
(iii) body organization.
Kingdom
|
Types of Organisms
|
Monera
|
Bacteria and Cyanobacteria.
|
Protista
|
Unicellular organisms.
|
Plantae
|
All photosynthetic green plants.
|
Fungi
|
Lack chlorophyll and obtain their food through
absorption.
|
Plantae
|
All multicellular photosynthetic green plants.
|
Animalia
|
Multicellular hetrotrophs
|
Question.17. Who proposed
division of Monera kingdom? State the groups proposed
Answer: Carl Woese. The groups are
– (i) Archaebacteria or Archaea (ii)
Eubacteria or Bacteria.
Question: 18. (a) Define species.
(b) State the hierarchic categories generally
used for classification of animals.
Answer: (a) All organism that are similar enough to inter breed is called species.
(b) The
characteristics dependent on the previous one and would decide the variety in
the next level should be chosen for developing a hierarchy in classification.
The hierarchic categories generally used
for classification of animals
(i) Kingdom – Plant kingdom
and animal kingdom.
(ii) Phylum
(for animals)/Division (for plants) – Group of closely related classes having certain common
characters.
(iii) Class – Group of
closely related orders having certain common characters.
(iv) Order – Group of closely related families with certain common
characters.
(v) Family – Group of closely related genus with certain common characters.
(vi) Genus – Group of
closely related species with certain common characters.
(vii) Species – Group of organisms similar enough to breed and perpetuate.
Question: 19. Why blue green algae are included under
monera and not under plantae ?
Ans: (i) Nuclear material is not
enclosed with nuclear membrane and cell organelles are also not enclosed with
membrane. (ii) Do not show multicellular body design.
Question: 20. State the groups of organism under kingdom
monera.
Ans: (i) Bacteria (ii)
Cyanobacteria (iii) Mycoplasm.
Question: 21. What are mycoplasm ?
Answer: Mycoplasms are the smallest and the simplest organisms. They have
nucleoid and their body can change shape easily. They are heterotrophs.
Question: 22.Why do bryophytes are called amphibians
of the plant kingdom ?
Answer: Bryophytes are also called amphibians of the plant kingdom because they
can live on soil but need water for sexual reproduction. They are usually found
in damp, humid and shaded localities.
Question: 23. what are the
contribution of Ernst Haeckel in biology?
Ans: Haeckel provide a reasonable
pictures of how multicellular organisms evolved.
Question: 24. What are the
important characteristics of the five kingdoms of Whittaker ?
The
Five Kingdoms
MONERANS
One Cell No Nucleus No Organelles Some Cell Wall
Food
Make Food Absorb Food Ingest Food Movement Water Host
Reproduction
Fission Examples Bacteria |
PROTISTS
Most One Cell Some Many Cell Nucleus Organelles Some Cell Wall
Food
Make Food Absorb Food Ingest Food
Movement
Pseudopodium Cilia Flagella
Reproduction
Fission Asexual Sexual
Examples
Plankton Algae Amoeba Paramecium Diatoms Euglena Volvox |
FUNGI
Some One Cell Some Many Cell Nucleus Organelles Cell Wall
Food
Absorb Food Ingest Food
Movement
Host
Reproduction
Spores Budding
Examples
Mushrooms Molds Mildews Yeasts |
PLANTS
All Many Cells Nucleus Organelles Cell Wall
Food
All Make Food Some Ingest Food
Movement
Grow Phototropism Geotropism
Reproduction
Sexual Asexual Grafting Budding Cuttings
Examples
Mosses Ferns Liverworts Horsetails |
ANIMALS
All Many Cells Nucleus Organelles
Food
All Ingests Food
Movement
Muscles
Reproduction
Asexual Sexual
Examples
Sponges Worms Mollusks Insects Starfish Mammals Amphibians Fish Birds Reptiles |
Diversity in Living Organisms solved CBSE Paper-1
Diversity in Living Organisms solved CBSE Paper-2
Diversity in Living Organisms solved CBSE Paper-3
Diversity in Living Organisms solved CBSE Paper-4
Diversity in Living Organisms NCERT Solution
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