Class 9 - Pearson - Biology - Diversity of living world - plantsContact Number: 8527521718Class 9 - Pearson - Biology - Diversity of living world - plantsContact Number: 8527521718In bacteria, cell membrane form invaginations in the cytoplasm and are called _________________.
The fungus is made up of a cluster of filaments known as _____________.
Organisms belonging to Protista, commonly known as a floating pasture of ocean, are ____________.
______________ a fungus produces penicillin.
The reserve food material in fungi is ______________.
Euglena has whip-like __________________ for locomotion.
Non-flowering plants reproduce by means of ______________.
The cell wall is made up of tough and complex sugars in _______________.
An algae used as a thickening and gelling agents in food is ______________.
In Pteridophyta, sexual mode of reproduction takes place by _____________.
the sub-division under plant kingdom which includes all ferns is ______________.
the parasitic green algae which cause red rust in tea is _____________.
_______________ is a marine algae used as food.
algae with a rich source of protein are ____________.
Conducting tissue in mosses is ______________.
the main plant body of bryophyte plant is ________________.
In mosses, the spores germinate to give rise to _____________.
Horsetail is the common name of ______________.
the leaf that bears spores in fern is known as _____________.
the phloem of pteridophytes does not possess ______________ cells.
_______________ are used as indicators of suphur dioxide pollutants.
spores on germination form _______________ in pollutants.
____________ in fern from gametophytic generation.
The red colour in algae is due to the presence of ____________.
In dicotyledons, the leaves bear ____________ type of venation.
Resin ducts and latex tubes are seen in _______________.
In xerophytes, the waxy coating on the epidermis prevents ________________.
Leaves which do not bear distinction between upper and lower surface are called ____________ leaves.
Edible dry fruit formed from gymnosperms is _____________.
When more than one embryos are developed in a seed, the phenomenon is known as _____________.
_______________ is obtained from the wood of gymnosperms.
Plants bearing vascular tissue and seeds without fruit production are _____________.
______________ leaves with parallel venation are seen in monocotyledons.
Resin is obtained from ________________.
Identify the process in which both the organisms are benefited in their close association.
1. Saprophytic
2. Saprozoic
3. Symbiosis
4. Parasitic
Identify the name of a single bacterial Chromosomes.
1. DNA
2. RNA
3. Ribosome
4. Nucleoid
Identify the common-mode Of asexual reproduction found in protozoans.
1. Budding
2. Multiple fission
3. Binary fission
4. Zoospores
The hierarchical system of classification of living organisms was proposed by:
1. Linnaeus
2. Whittaker
3. Theophrastus
4. Aristotle
Blue-green algae come under which group of organisms?
1. Archebacteria
2. Algae
3. Eubacteria
4. Protista
Identify the group of organisms associated with prokaryotic cells.
1. Monera
2. Protista
3. Fungi
4. Algae
Name the comma-shaped bacterium.
1. Spirilla
2. Cocci
3. Vibrio
4. Bacilli
Interbreeding between two populations Can occur if they belong to the same:
1. order
2. species
3. class
4. family
The edible seaweed used is found in the industry for gelling and thickening is:
1. butter
2. agar-agar
3. chocolate
4. carrageenans
The stored form of reserve food in brown algae is:
1. laminarin
2. glucose
3. fructose
4. glycogen
The solid fossil fuel coal is formed by burning of:
1. pteridophytes
2. algae
3. fungus
4. bacteria
The starch stored in red algae is:
1. laminar-in starch
2. glucose
3. Floridian starch
4. cellulose
The plant that is responsible for the formation of peat is:
1. Anthoceros
2. Sphagnum
3. Riccia
4. Funaria
48. The plant Categorized under living fossil is:
1. Marchantia
2. Pinus
3. Cycas
4. Selaginella
Identify the algae rich in protein.
1. Spirulina
2. Sargassum
3. Sphagnum
4. Polytrichum
Liverworts belong to:
1. Thallophyta
2. Bryophyta
3. Pteridophyta
4. Gymnosperms
Moss plants belong to which category of plants?
1. Thallophyta
2. Bryophyta
3. Pteridophyta
4. Gymnosperms
Floridian Starch is the reserve food material in which of the following organisms?
1. Gelidium
2. Sargassum
3. Spirogyra
4. All of these
The development of haploid cells of gametophyte into a haploid sporophyte is called:
1. Apogamy
2. Apospory
3. Budding
4. Binary fission
Which of the following pteridophyte plant is known for replenishing soils?
1. Azolla
2. Lycopodium
3. Lycopodium
4. Marsilea
Which of the following is used as a green manure?
1. Azadirachta
2. Azolla
3. Crotalaria
4. Hevea
Trimerous condition of floral whorls is present in:
1. angiosperms
2. dicots
3. gymnosperms
4. monocots
Which of the following groups Of plants possesses cones as reproductive structures?
1. Gymnosperms
2. Pteridophytes
3. Bryophytes
4. Thallophytes
Which of the following is absent in the life cycle of gymnosperms?
1. Ovules
2. Ovary
3. Microspores
4. Megaspores
Name the part of the plant cell which traps the solar energy.
1. Grana
2. Stroma
3. Cuticle
4. Chlorophyll
Sessile flowers lack which structure in the flower?
1. Thalamus
2. Anther
3. Calyx
4. Pedicel
Which part Of the cactus plant is modified into the spine?
1. Stem
2. Roots
3. Leaves
4. Branches
Name the venation in which veins form a network.
1. Reticulate
2. Parallel
3. Simple
4. Compound
Underground stem modification is observed in which plant?
1. Ginger
2. Onion
3. Carrot
4. Beetroot
The plants that grow in nitrogen-deficient soil is:
1. opuntia
2. Vallisneria
3. neem
4. Venus flytrap
Which of the following was taken as a distinguishing feature by Whittaker for proposing five kingdom classification?
1. Structure of cell
2. Cellular organization
3. Mode of nutrition
4. All the above
Identify a unicellular eukaryotic group of organisms.
1. Monera
2. Protista
3. Fungi
4. None Of these
Which of the following bacterium is associated with the roots of legumes?
1. Rhizobium
2. Nostoc
3. Spirogyra
4. Clostridium
Which of the following are eukaryotic multicellular organisms having cells with the cell walls and show heterotrophic mode of nutrition?
1. Plantae
2. Animalia
3. Protista
4. Fungi
Identify the organism which has prokaryotic cell structure and autotrophic mode of nutrition.
1. Euglena
2. Mycoplasma
3. Cyanobacteria
4. Rhizobium
Identify the characteristic features of yeast.
(a) Possession of cell wall made up of chitin
(b) Prokaryotic cell structure
(c) Saprophytic mode of nutrition
(d) Absence of mitochondria in cells
1. (a), (c), (d)
2. (a), (d)
3. (b). (c)
4. (a), (b), (c)
In the following line diagram showing the taxonomic hierarchy of plants, identify the missing taxonomic unit.
1. order
2. family
3. species
4. phylum
The taxonomic unit at a level one step higher to Genus is:
1. Order
2. Family
3. Species
4. Class
Identify the correct statements regarding the taxonomic unit 'species'.
(a) The name of the species is written with the first letter in capital
(b) The organisms of the same species can interbreed among themselves
(c) Species is the taxonomic unit with the highest specificity
(d) The next taxonomic unit at a higher level than the spectes is a genus.
The photosynthetic pigment found in Sargassum is:
1. carotene
2. xanthophyll
3. phycocyanin
4. fucoxanthin
The ground becomes slippery during the rainy season because of:
1. blue algae
2. green algae
3. blue-green algae
4. mosses
Gametophytic and generations seen in life history of
1. fungi
2. algae
3. ferns
4. diatoms
Pteridophytes differ from bryophyte s in possessing:
1. spores
2. archegonia
3. vascular tissue
4. alternation of generation
The diploid cells of gametophyte in Sehagineh'a gives rise to diploid sporophyte. Identify the name of the process involved.
1. Apogamy
2. Apospory
3. Fragmentation
4. Protonema
Which of the following plants possess isobilateral leaves?
(a) Wheat
(b) Banana
(c) garden pea
(d) Groundnut
1. (1); (b)
2. (c); (d)
3. (a) only
4. (d) only
Maize plant possesses which of the following morphological features?
(a) Trimerous flowers
(b) Leaves with parallel venation
(c) Solid branched stem
(d) isobilateral leaves
1. (a); (b)
2. (b); (c); (d)
3. (a); (b); (d)
4. (b); (d)
The presence of thin and small roots is the characteristic feature of which group of plants?
1. Mesophytes
2. Xerophyte
3. Hydrophyte
4. None of these
Cycas has the embryo with two cotyledons. Yet it is not classified as a dicotyledonous plant because:
1. it looks like a palm tree
2. it bears megasporophylls
3 . its ovules are naked
4. it bears microsporophylls
Coralloid roots help the plant in:
1. absorption of water
2. nitrogen fixation
3. anchorage
4. climbing
Seed—producing plants are called:
1. spermatophytes
2. pteridophytes
3. bryophytes
4. embryophytes
Leaves dorsiventral and Show reticulate
1. onion
2. palm
3. lily
4. mustard
Jiny, microscopic plant classified under angiosperms is;
1. Retilesia
2. Wolfia
3. Pistia
4. Riccia
What is meant by nucleoid? Which group of organisms are associated With nucleoid? Give examples.
Define binary fission. Mention some organisms which show this phenomenon.
Define the following:
(a) Taxon
(b) Species
(c) Taxonomic hierarchy
Name the kingdom which comprises the first eukaryotic life forms originated on Earth. Give examples.
Write the most important characteristic feature of each Of the following groups Of organisms.
(a) Monera
(b) Fungi
(c) Protista
Distinguish between parasitic mode of nutrition and symbiotic mode of nutrition.
Mention the characteristic features of Euglena in support of its inclusion in the animal kingdom. Also, mention the features which contradict its placement.
Mention the taxonomy of bacteria. Bacteria play both useful and harmful role. Justify.
Define the terms connected to the plant kingdom.
(a) Annual
(b) Biennial
(c) Perennial
(d) Evergreen
(e) Deciduous
Mention the characteristic features of liverworts.
What is the purpose of sporangiophores in fungi?
Observe the figure given below and answer accordingly.
(a) Identify figures A and B
(b) which one is a multicellular form commonly known as bread mold
(c) In which of the above plants, xylem lacks vessels, and phloem is devoid of companion cells.
(d) Identify the form in which spores germinate to form prothallus.
Why are bryophytes called amphibious plants plant kingdom?
Give resemblances of bryophytes with algae.
Identify the basic criteria for classifying cryptogams.
Differentiate between the following.
(a) Apogamy and Apospory
(b) Homospory and Heterospory
(c) Gametophyte and Sporophyte
(d) Prothallus and Protonema
How can one differentiate algae from fungi?
the features are taken for the further classification of the following
(a) Cryptogame
(b) Phanerogamae
What are the basic differences between bryophytes and pteridophytes?
Explain the nature of vascular tissue in pteridophytes.
Define the following:
(a) Mesophytes
(b) Sporangia
(c) Xerophytes
(d) Pentamerous dowers
List the difference between monocots and dicots:
What is the fate of the following organs of a flower after fertilization?
(a) Sepals
(b) Petals
(c) Stamens
(d) Ovary
(e) Ovule
The aerial roots of the banyan tree are not considered as true roots. Give reasons.
Distinguish between rhizome and stem tuber.
The stem is green and fleshy in cactus. Give reason.
Distinguish between parasitic roots and epiphytic roots. Give examples.
Give one example for each of the following:
(a) Amphibious plant.
(b) A symbiotic plant
(c) Colonial coelenterate
Bacteria are considered a plant. Give reason,
Explain the role of bacteria in the following.
(a) Curdling of milk
(b) Production of antibiotics
(c) Curing Of coffee
(d) Retting Of fiber
Explain the role of yeast in the preparation of alcohol.
Name the algae useful for prolonged space flight. Why?
Why are green algae considered as ancestors of land plants?
Liverworts and mosses are amphibians of the plant kingdom. Give reasons.
Ferns are better adapted to a terrestrial mode of life. Give reasons.
differentiate between algae and fungi:
Velvety green beds appear on the walls during rainy season. Give reason.
Which pteridophyte has been proved to be a good biofertilizer for paddy?
1. Azolla
2. Marsilea
3. Pteris
4. Selaginella
Identify the gametophytic stage of Pteridophyta.
1. Prothallus
2. Protonema
3. Apogamy
4. Apospory
Algae are classified based on their photosynthetic pigments Comment.
Mention some morphological features by which dicotyledonous trees are identified.
Name the groups of plants that are considered as vascular plants. Why are they so-called? Also, mention in what way angiosperms differ from the other groups of vascular plants.
Assertion (A): Protozoans and diatoms belong to the kingdom Protista.
Reason (R): Protozoans and diatoms are parasitic forms.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): The specificity of characters decreases from family to genus.
Reason (R): The genus is a lower-level taxonomic unit than the genus.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Fungi do not undergo photosynthesis
Reason (R): Fungi usually live in dark places.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Actinomyces possesses a single chromosome
Reason (R): Actinomyces is a prokaryote
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Both bacteria and blue-green algae are grouped into one kingdom
Reason (R): The cells of Bacteria and blue-green algae possess cell wall made up of cellulose
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Mushrooms are not considered as plants.
Reason (R): The cells do not possess cell walls
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Algae are microscopic thallophytes
Reason (R): Green, Red and brown are different types of algae
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Diatoms do not decay as early as other algae
Reason (R): Diatoms have siliceous cell walls
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Kelp is a herbal medicine taken from brown algae
Reason (R): Use of kelp causes goiter
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Sphagnum is used for dressing wounds.
Reason (R): Sphagnum is used as packing material for transportation.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Bryophytes are terrestrial plants.
Reason (R): The Life cycle of bryophytes occurs in two phases gametophyte and sporophyte.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): All bryophytes are considered as amphibious plants.
Reason (R): Bryophytes complete their life cycle in the presence of water.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Equisetum is also known as horsetail.
Reason (R): Equisetum is used in the preparation of medicine
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Apogamy is a type of vegetative propagation.
Reason (R): Haploid cells of gametophyte without genetic union forms haploid sporophyte.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Non-flowering plants are known as cryptogams.
Reason (R): Marchantia belongs to cryptogams.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): The prothallus of fern is heart-shaped.
Reason (R): Prothallus in fern helps in the production of gametes.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): In ferns, the diploid cells of the sporophyte directly give rise to the diploid gametophyte
Reason (R): Ferns reproduce by spore formation and genetic fusion
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): A thick waxy coating is found covering the shoot system of cactus
Reason (R): Cactus is generally found in desert areas.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Gymnosperms do not produce fruits
Reason (R): Gymnosperms are non flowering plants.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Cycas bears reproductive structures on the leaves
Reason (R): Pteridophytes possess sporangia on leaves
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Gymnosperms do not produce fruits.
Reason (R): Gymnosperms are non flowering plants.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): The dominant phase of the life cycle in angiosperms is sporophyte
Reason (R): Sporophyte in angiosperm is developed form diploid zygote.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): Dicotyledons undergo epigeal type 0f germination.
Reason (R): Endosperm forms nutritive tissue.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.
Assertion (A): The Taproot system is seen in monocotyledons.
Reason (R): Fibrous root system anchors the plant firmly into the ground.
1. Both A and R are true and R is the correct explanation for A.
2. Both A and R are true but R is not the correct explanation for A.
3. A is true and R is false.
4. A is false and R is true.