Q. Which of the following is a factor affecting the rate of transpiration?
A.
Temperature
B.
Humidity
C.
Wind speed
D.
All of the above
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Solution
All of these factors influence the rate of transpiration in plants.
Correct Answer: D — All of the above
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Q. Which of the following is a feature of algae? (2022)
A.
Presence of true roots
B.
Photosynthetic pigments
C.
Vascular tissues
D.
Seeds
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Solution
Algae are primarily characterized by their ability to perform photosynthesis using various pigments, but they do not have true roots or vascular tissues.
Correct Answer: B — Photosynthetic pigments
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Q. Which of the following is a feature of angiosperms? (2020)
A.
Produce seeds
B.
Have vascular tissues
C.
Produce flowers
D.
All of the above
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Solution
Angiosperms are characterized by producing seeds, having vascular tissues, and producing flowers.
Correct Answer: D — All of the above
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Q. Which of the following is a feature of bryophytes? (2018)
A.
Presence of seeds
B.
Presence of vascular tissues
C.
Moist habitats
D.
All of the above
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Solution
Bryophytes are non-vascular plants that typically thrive in moist habitats.
Correct Answer: C — Moist habitats
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Q. Which of the following is a feature of dicots? (2020)
A.
Single cotyledon
B.
Net-like venation
C.
Floral parts in multiples of three
D.
Fibrous root system
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Solution
Dicots are characterized by having two cotyledons and net-like venation in their leaves.
Correct Answer: B — Net-like venation
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Q. Which of the following is a feature of dicotyledons? (2020)
A.
Single seed leaf
B.
Net-like venation
C.
Floral parts in multiples of three
D.
Fibrous root system
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Solution
Dicotyledons are characterized by having two seed leaves (cotyledons) and net-like venation in their leaves.
Correct Answer: B — Net-like venation
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Q. Which of the following is a feature of internal fertilization? (2023)
A.
Occurs in water
B.
Requires a moist environment
C.
Protects the developing embryo
D.
Involves external gametes
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Solution
Internal fertilization occurs inside the female's body, providing protection to the developing embryo.
Correct Answer: C — Protects the developing embryo
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Q. Which of the following is a feature of living organisms? (2021)
A.
They can be created from non-living matter
B.
They can reproduce
C.
They do not respond to stimuli
D.
They do not grow
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Solution
Living organisms have the ability to reproduce, which is a key feature of life.
Correct Answer: B — They can reproduce
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Q. Which of the following is a feature of monocots? (2020)
A.
Two cotyledons
B.
Parallel leaf venation
C.
Vascular bundles in a ring
D.
Tap root system
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Solution
Monocots are characterized by having parallel leaf venation and one cotyledon.
Correct Answer: B — Parallel leaf venation
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Q. Which of the following is a feature of monocotyledons? (2018)
A.
Two cotyledons
B.
Parallel venation
C.
Tap root system
D.
Presence of vascular cambium
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Solution
Monocotyledons are characterized by having parallel venation in their leaves.
Correct Answer: B — Parallel venation
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Q. Which of the following is a feature of multicellular organisms? (2020)
A.
Single cell
B.
Complex structure
C.
No differentiation
D.
Asexual reproduction only
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Solution
Multicellular organisms have a complex structure with differentiated cells.
Correct Answer: B — Complex structure
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Q. Which of the following is a feature of non-vascular plants? (2018)
A.
Presence of roots
B.
Presence of xylem and phloem
C.
Dependence on water for reproduction
D.
Production of seeds
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Solution
Non-vascular plants, such as bryophytes, depend on water for reproduction as they require water for sperm to swim to the egg.
Correct Answer: C — Dependence on water for reproduction
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Q. Which of the following is a feature of prokaryotic cells? (2020)
A.
Nucleus present
B.
Membrane-bound organelles
C.
Circular DNA
D.
Multicellular
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Solution
Prokaryotic cells have circular DNA and lack a true nucleus.
Correct Answer: C — Circular DNA
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Q. Which of the following is a feature of sexual reproduction? (2021)
A.
Single parent
B.
Genetic variation
C.
Slow process
D.
All of the above
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Solution
Sexual reproduction involves two parents and results in genetic variation among offspring.
Correct Answer: B — Genetic variation
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Q. Which of the following is a feature of the kingdom Animalia? (2018)
A.
Cell walls made of cellulose
B.
Autotrophic nutrition
C.
Multicellular and heterotrophic
D.
Photosynthetic
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Solution
The kingdom Animalia consists of multicellular and heterotrophic organisms.
Correct Answer: C — Multicellular and heterotrophic
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Q. Which of the following is a feature of the kingdom Plantae? (2018)
A.
Heterotrophic
B.
Cell walls made of cellulose
C.
Unicellular
D.
Motile
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Solution
Plants have cell walls made of cellulose and are primarily autotrophic.
Correct Answer: B — Cell walls made of cellulose
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Q. Which of the following is a feature of the kingdom Protista? (2021)
A.
All are multicellular
B.
All are autotrophic
C.
Eukaryotic and mostly unicellular
D.
Prokaryotic
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Solution
The kingdom Protista consists of eukaryotic organisms that are mostly unicellular.
Correct Answer: C — Eukaryotic and mostly unicellular
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Q. Which of the following is a feature of the living world? (2019)
A.
All living organisms are unicellular
B.
All living organisms are multicellular
C.
Living organisms exhibit complex organization
D.
Living organisms do not respond to their environment
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Solution
Living organisms exhibit complex organization, which is a key feature of life, distinguishing them from non-living entities.
Correct Answer: C — Living organisms exhibit complex organization
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Q. Which of the following is a feature of the phylum Annelida? (2022)
A.
Body divided into segments
B.
Presence of a shell
C.
Radial symmetry
D.
Exoskeleton
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Solution
Annelids, such as earthworms, are characterized by their segmented bodies.
Correct Answer: A — Body divided into segments
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Q. Which of the following is a feature of the phylum Arthropoda? (2023)
A.
Presence of a backbone
B.
Jointed appendages
C.
Soft body
D.
Radial symmetry
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Solution
Arthropods are known for their jointed appendages, which aid in movement and feeding.
Correct Answer: B — Jointed appendages
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Q. Which of the following is a feature of the phylum Echinodermata? (2020)
A.
Radial symmetry
B.
Exoskeleton made of chitin
C.
Jointed appendages
D.
Body divided into segments
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Solution
Echinoderms exhibit radial symmetry and have a calcareous endoskeleton.
Correct Answer: A — Radial symmetry
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Q. Which of the following is a feature of the phylum Platyhelminthes? (2019)
A.
Coelomate body plan
B.
Flat body shape
C.
Jointed appendages
D.
Presence of a shell
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Solution
Platyhelminthes, or flatworms, are characterized by their flat body shape and lack of a coelom.
Correct Answer: B — Flat body shape
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Q. Which of the following is a feature of the phylum Porifera? (2020)
A.
Body is segmented
B.
Presence of a true coelom
C.
Body is porous
D.
Radial symmetry
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Solution
Porifera, or sponges, are characterized by their porous bodies that allow water to flow through.
Correct Answer: C — Body is porous
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Q. Which of the following is a feature of the Plantae kingdom? (2023)
A.
Heterotrophic nutrition
B.
Cell walls made of chitin
C.
Photosynthetic autotrophs
D.
Unicellular organisms
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Solution
The Plantae kingdom is characterized by photosynthetic autotrophs, which produce their own food through photosynthesis.
Correct Answer: C — Photosynthetic autotrophs
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Q. Which of the following is a feature of viruses? (2020)
A.
Cellular structure
B.
Metabolism
C.
Reproduction only in host cells
D.
Photosynthesis
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Solution
Viruses can only reproduce inside host cells, as they lack cellular structure and metabolism.
Correct Answer: C — Reproduction only in host cells
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Q. Which of the following is a form of asexual reproduction? (2021)
A.
Fertilization
B.
Budding
C.
Pollination
D.
Conjugation
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Solution
Budding is a form of asexual reproduction where a new organism develops from an outgrowth or bud.
Correct Answer: B — Budding
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Q. Which of the following is a form of vegetative propagation? (2021)
A.
Cutting
B.
Budding
C.
Binary fission
D.
Spore formation
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Solution
Cutting is a method of vegetative propagation where a part of a plant is used to grow a new plant.
Correct Answer: A — Cutting
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Q. Which of the following is a form of vegetative reproduction? (2023)
A.
Cuttings
B.
Budding
C.
Binary fission
D.
Spore formation
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Solution
Cuttings are a form of vegetative reproduction where a part of the plant is used to grow a new plant.
Correct Answer: A — Cuttings
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Q. Which of the following is a function of cytokinins in plant development? (2023)
A.
Promote leaf senescence
B.
Delay aging of leaves
C.
Inhibit cell division
D.
Promote root growth
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Solution
Cytokinins are known to delay leaf senescence and promote cell division, enhancing growth.
Correct Answer: B — Delay aging of leaves
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Q. Which of the following is a function of cytokinins in plants? (2019)
A.
Promoting leaf senescence
B.
Stimulating root growth
C.
Inhibiting cell division
D.
Promoting shoot development
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Solution
Cytokinins promote shoot development and are involved in delaying leaf senescence.
Correct Answer: D — Promoting shoot development
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