Q. What type of leaf arrangement has leaves that grow directly opposite each other on the stem? (2021)
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A.
Alternate
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B.
Whorled
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C.
Opposite
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D.
Rosette
Solution
In opposite leaf arrangement, two leaves grow at each node directly across from each other.
Correct Answer: C — Opposite
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Q. What type of leaf arrangement is characterized by leaves that grow directly opposite each other on the stem? (2021)
-
A.
Alternate
-
B.
Whorled
-
C.
Opposite
-
D.
Rosette
Solution
In opposite leaf arrangement, two leaves grow at each node directly across from each other.
Correct Answer: C — Opposite
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Q. What type of root system is found in monocots? (2021)
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A.
Tap root system
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B.
Fibrous root system
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C.
Adventitious root system
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D.
None of the above
Solution
Monocots typically have a fibrous root system, which consists of many thin roots.
Correct Answer: B — Fibrous root system
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Q. Which of the following is a characteristic of complete flowers? (2022)
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A.
Lack of sepals
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B.
Presence of both male and female parts
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C.
Only male parts
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D.
Only female parts
Solution
Complete flowers have all four whorls: sepals, petals, stamens, and carpels.
Correct Answer: B — Presence of both male and female parts
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Q. Which of the following is a characteristic of dicotyledons? (2019)
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A.
Two cotyledons
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B.
Parallel venation
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C.
Fibrous root system
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D.
Single flower part
Solution
Dicotyledons are characterized by having two cotyledons in their seeds.
Correct Answer: A — Two cotyledons
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Q. Which of the following is a modified leaf in flowering plants? (2020)
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A.
Stamen
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B.
Petal
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C.
Sepal
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D.
Bract
Solution
Bracts are modified leaves that can be found associated with flowers.
Correct Answer: D — Bract
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Q. Which of the following is a modified leaf that forms part of the flower? (2022)
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A.
Bract
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B.
Node
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C.
Internode
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D.
Petiole
Solution
A bract is a modified leaf that can be found at the base of a flower or inflorescence.
Correct Answer: A — Bract
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Q. Which of the following is a modified stem? (2019)
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A.
Tuber
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B.
Rhizome
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C.
Bulb
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D.
All of the above
Solution
All of the options listed (tuber, rhizome, and bulb) are examples of modified stems.
Correct Answer: D — All of the above
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Q. Which of the following is NOT a function of stems in flowering plants? (2022)
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A.
Support
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B.
Transport of nutrients
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C.
Photosynthesis
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D.
Water absorption
Solution
Stems primarily support the plant, transport nutrients and water, but do not absorb water; this is the function of roots.
Correct Answer: D — Water absorption
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Q. Which of the following is NOT a part of a typical flower? (2022)
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A.
Stamen
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B.
Carpel
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C.
Leaf
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D.
Petal
Solution
A typical flower consists of stamens, carpels, petals, and sepals, but not leaves.
Correct Answer: C — Leaf
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Q. Which of the following structures is involved in pollen production? (2021)
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A.
Ovary
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B.
Anther
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C.
Style
-
D.
Stigma
Solution
The anther is the part of the stamen that produces pollen.
Correct Answer: B — Anther
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Q. Which part of the flower contains the pollen? (2020)
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A.
Ovary
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B.
Stigma
-
C.
Anther
-
D.
Style
Solution
The anther is the part of the stamen that produces and contains pollen.
Correct Answer: C — Anther
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Q. Which part of the flower develops into fruit after fertilization? (2019)
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A.
Stamen
-
B.
Carpel
-
C.
Petal
-
D.
Sepal
Solution
The carpel, specifically the ovary part of the carpel, develops into fruit after fertilization.
Correct Answer: B — Carpel
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Q. Which part of the flower develops into fruit? (2023)
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A.
Stamen
-
B.
Ovary
-
C.
Style
-
D.
Anther
Solution
The ovary of the flower develops into the fruit after fertilization.
Correct Answer: B — Ovary
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Q. Which part of the flower is responsible for reproduction? (2021)
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A.
Sepals
-
B.
Petals
-
C.
Stamens
-
D.
Ovaries
Solution
The stamens are the male reproductive part of the flower, consisting of anthers and filaments.
Correct Answer: C — Stamens
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Q. Which part of the flower is typically colorful and attracts pollinators? (2019)
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A.
Sepals
-
B.
Petals
-
C.
Stamens
-
D.
Carpels
Solution
Petals are often brightly colored to attract pollinators to the flower.
Correct Answer: B — Petals
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Q. Which part of the flower is typically colorful and fragrant? (2022)
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A.
Sepals
-
B.
Petals
-
C.
Stamens
-
D.
Ovary
Solution
Petals are often colorful and fragrant to attract pollinators.
Correct Answer: B — Petals
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Q. Which part of the flower is typically sticky to catch pollen? (2022)
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A.
Style
-
B.
Stigma
-
C.
Ovary
-
D.
Anther
Solution
The stigma is the sticky part of the pistil that captures pollen.
Correct Answer: B — Stigma
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Q. Which part of the flower is typically the most colorful? (2020)
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A.
Stamen
-
B.
Pistil
-
C.
Petals
-
D.
Sepals
Solution
Petals are usually the most colorful part of the flower, aiding in attracting pollinators.
Correct Answer: C — Petals
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Q. Which part of the plant is primarily involved in photosynthesis? (2020)
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A.
Roots
-
B.
Stems
-
C.
Leaves
-
D.
Flowers
Solution
Leaves are the primary sites of photosynthesis in flowering plants due to the presence of chlorophyll.
Correct Answer: C — Leaves
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Q. Which part of the stamen produces pollen? (2022)
-
A.
Filament
-
B.
Anther
-
C.
Style
-
D.
Ovary
Solution
The anther is the part of the stamen that produces and contains pollen.
Correct Answer: B — Anther
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Q. Which structure develops into a seed after fertilization? (2023)
-
A.
Ovary
-
B.
Stigma
-
C.
Style
-
D.
Anther
Solution
The ovary develops into a seed after fertilization, containing the ovules that become seeds.
Correct Answer: A — Ovary
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Q. Which structure in the flower develops into seeds after fertilization? (2023)
-
A.
Ovary
-
B.
Stigma
-
C.
Anther
-
D.
Filament
Solution
The ovary develops into seeds after fertilization.
Correct Answer: A — Ovary
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Q. Which structure in the flower is responsible for producing ovules? (2023)
-
A.
Anther
-
B.
Ovary
-
C.
Filament
-
D.
Stigma
Solution
The ovary contains ovules, which develop into seeds after fertilization.
Correct Answer: B — Ovary
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Q. Which structure is responsible for pollen production? (2020)
-
A.
Ovary
-
B.
Anther
-
C.
Style
-
D.
Stigma
Solution
The anther is the part of the stamen that produces pollen.
Correct Answer: B — Anther
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Q. Which type of flower has both male and female reproductive organs? (2020)
-
A.
Unisexual
-
B.
Bisexual
-
C.
Complete
-
D.
Incomplete
Solution
Bisexual flowers contain both stamens and pistils, allowing for self-fertilization.
Correct Answer: B — Bisexual
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Q. Which type of flower has both male and female reproductive structures? (2023)
-
A.
Unisexual
-
B.
Bisexual
-
C.
Complete
-
D.
Incomplete
Solution
A bisexual flower contains both stamens and carpels, making it capable of producing both pollen and ovules.
Correct Answer: B — Bisexual
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Q. Which type of plant tissue is responsible for growth? (2022)
-
A.
Parenchyma
-
B.
Collenchyma
-
C.
Meristematic tissue
-
D.
Sclerenchyma
Solution
Meristematic tissue is responsible for the growth of plants as it contains undifferentiated cells that can divide.
Correct Answer: C — Meristematic tissue
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