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19 questions · auto-graded multiple-choice test.

MCQ 11 Mark
Which one of the following is essential for photosynthesis:
  • Carbon dioxide
  • B
    Nitrogen
  • C
    Oxygen
  • D
    Soil
Answer
Correct option: A.
Carbon dioxide
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MCQ 41 Mark
Which one of the following is not an insectivorous plant
  • A
    Pitcher plant
  • B
    Venus flytrap
  • C
    Bladderwort
  • Cactus
Answer
Correct option: D.
Cactus
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MCQ 61 Mark
Flowers with either male or female reproductive part are
  • A
    bisexual
  • B
    hermaphrodite
  • unisexual
  • D
    none of these
Answer
Correct option: C.
unisexual
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MCQ 71 Mark
Which part of the flower gives rise to the seeds?
  • A
    Pollen grains
  • B
    Ovary
  • Ovules
  • D
    Stigma
Answer
Correct option: C.
Ovules
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MCQ 81 Mark
The gynoecium consists of
  • A
    stigma and anthers
  • B
    anthers and filaments
  • C
    stigma, pollen grains, and ovary
  • stigma, style, and ovary.
Answer
Correct option: D.
stigma, style, and ovary.
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MCQ 111 Mark
Find the odd one out. Give reason.
  • leaf
  • B
    stigma
  • C
    style
  • D
    ovary
Answer
Correct option: A.
leaf
leaf
Reason:the leaf is a part of the plant whereas stigma, style, and ovary are parts of the female reproductive part of a plant (carpel).
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MCQ 131 Mark
Find the odd one out. Give reason.
  • ovules
  • B
    lamina
  • C
    midrib
  • D
    petiole
Answer
Correct option: A.
ovules
ovules
Reason:ovules are a part of gynoecium whereas the other three are parts of a leaf.
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MCQ 141 Mark
Which of the following roots give mechanical support to the plant?
  • Prop roots
  • B
    Epiphytic roots
  • C
    Nitrogen$-$fixing roots
  • D
    Breathing roots
Answer
Correct option: A.
Prop roots
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MCQ 151 Mark
Find the odd one out. Give reason.
  • A
    calyx
  • B
    corolla
  • C
    stamen
  • stem
Answer
Correct option: D.
stem
stem
Reason:the stem is a part of a plant whereas calyx, corolla, and stamen are parts of a flower.
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MCQ 161 Mark
The flower is borne on a short stalk called
  • A
    petiole
  • B
    filament
  • pedicel
  • D
    plumule
Answer
Correct option: C.
pedicel
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MCQ 171 Mark
The transfer of pollen grains from the anther to the stigma is termed as
  • A
    fertilization
  • B
    reproduction
  • C
    fusion
  • pollination
Answer
Correct option: D.
pollination
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MCQ 181 Mark
Find the odd one out. Give reason.
  • A
    stem
  • B
    leaves
  • root
  • D
    flowers
Answer
Correct option: C.
root
root
Reason: stem, leaves, and flowers are a part of a shoot system whereas root forms the root system of a plant.
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MCQ 191 Mark
Which of the following is not a function of the roots?
  • A
    To absorb water and minerals
  • B
    To anchor the plant to the soil
  • C
    To store food
  • To manufacture food
Answer
Correct option: D.
To manufacture food
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MCQ - BIOLOGY STD 6 Questions - Vidyadip