Structural Organization - Morphology of Flowering Plants
Q. What is the female reproductive part of a flower called? (2022)
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A.
Stamen
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B.
Pistil
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C.
Petal
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D.
Sepal
Solution
The pistil is the female reproductive part of the flower, consisting of the ovary, style, and stigma.
Correct Answer: B — Pistil
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Q. What is the function of the sepals in a flower? (2020)
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A.
Attract pollinators
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B.
Protect the flower bud
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C.
Produce pollen
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D.
Support the flower
Solution
Sepals protect the flower bud before it opens.
Correct Answer: B — Protect the flower bud
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Q. What is the function of the xylem in flowering plants? (2023)
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A.
Transport of nutrients
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B.
Transport of water
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C.
Photosynthesis
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D.
Storage of food
Solution
Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer: B — Transport of water
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Q. What is the main function of the root system in flowering plants? (2020)
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A.
Photosynthesis
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B.
Anchorage and absorption of water
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C.
Reproduction
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D.
Storage of food
Solution
The root system primarily anchors the plant and absorbs water and nutrients from the soil.
Correct Answer: B — Anchorage and absorption of water
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Q. What is the main function of the sepals? (2021)
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A.
Attract pollinators
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B.
Protect the flower bud
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C.
Produce nectar
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D.
Support the petals
Solution
Sepals protect the flower bud before it opens and can also support the petals.
Correct Answer: B — Protect the flower bud
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Q. What is the outermost whorl of a flower called? (2023)
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A.
Calyx
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B.
Corolla
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C.
Androecium
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D.
Gynoecium
Solution
The outermost whorl of a flower is called the calyx, which is made up of sepals.
Correct Answer: A — Calyx
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Q. What is the primary function of petals in a flower? (2021)
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A.
Support the flower
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B.
Attract pollinators
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C.
Protect the ovary
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D.
Produce nectar
Solution
Petals are often brightly colored to attract pollinators.
Correct Answer: B — Attract pollinators
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Q. What is the primary function of the flower's petals? (2022)
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A.
Attract pollinators
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B.
Protect the ovary
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C.
Support the flower
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D.
Store nutrients
Solution
Petals are primarily designed to attract pollinators with their color and fragrance.
Correct Answer: A — Attract pollinators
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Q. What is the primary function of the phloem in flowering plants? (2023)
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A.
Transport of water
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B.
Transport of food
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C.
Support
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D.
Storage
Solution
Phloem is responsible for the transport of food (sugars) produced during photosynthesis from leaves to other parts of the plant.
Correct Answer: B — Transport of food
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Q. What is the term for a flower with both male and female reproductive structures? (2019)
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A.
Unisexual
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B.
Bisexual
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C.
Asexual
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D.
Monoecious
Solution
A bisexual flower contains both male (stamens) and female (pistils) reproductive structures.
Correct Answer: B — Bisexual
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Q. What is the term for the female reproductive part of the flower? (2022)
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A.
Stamen
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B.
Pistil
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C.
Anther
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D.
Filament
Solution
The pistil is the female reproductive part of the flower, consisting of the stigma, style, and ovary.
Correct Answer: B — Pistil
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Q. What is the term for the male gamete in flowering plants? (2023)
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A.
Ovule
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B.
Pollen grain
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C.
Seed
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D.
Ovary
Solution
The male gamete in flowering plants is contained within the pollen grain.
Correct Answer: B — Pollen grain
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Q. What type of leaf arrangement is characterized by 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 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 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 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 part of the flower develops into fruit? (2023)
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A.
Stamen
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B.
Ovary
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C.
Style
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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
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B.
Petals
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C.
Stamens
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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 sticky to catch pollen? (2022)
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A.
Style
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B.
Stigma
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C.
Ovary
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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 plant is primarily involved in photosynthesis? (2020)
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A.
Roots
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B.
Stems
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C.
Leaves
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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 structure develops into a seed after fertilization? (2023)
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A.
Ovary
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B.
Stigma
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C.
Style
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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 is responsible for pollen production? (2020)
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A.
Ovary
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B.
Anther
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C.
Style
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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 plant tissue is responsible for growth? (2022)
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A.
Parenchyma
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B.
Collenchyma
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C.
Meristematic tissue
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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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