Q. What type of leaf arrangement is characterized by leaves that grow in pairs on opposite sides of the stem?
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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
Opposite leaf arrangement features pairs of leaves growing directly across from each other on the stem.
Correct Answer: C — Opposite
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Q. What type of mutation involves a change in a single nucleotide base pair?
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A.
Frameshift mutation
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B.
Point mutation
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C.
Deletion mutation
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D.
Insertion mutation
Solution
A point mutation involves a change in a single nucleotide base pair, which can affect protein synthesis.
Correct Answer: B — Point mutation
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Q. What type of mutation involves a change in a single nucleotide?
-
A.
Frameshift mutation
-
B.
Point mutation
-
C.
Deletion mutation
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D.
Duplication mutation
Solution
A point mutation is a change in a single nucleotide in the DNA sequence.
Correct Answer: B — Point mutation
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Q. What type of mutation involves the substitution of one base pair for another?
-
A.
Insertion
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B.
Deletion
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C.
Point mutation
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D.
Frameshift mutation
Solution
A point mutation involves the substitution of one base pair for another, potentially altering a single amino acid in a protein.
Correct Answer: C — Point mutation
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Q. What type of mutation results in a change in a single nucleotide?
-
A.
Frameshift mutation
-
B.
Point mutation
-
C.
Deletion mutation
-
D.
Insertion mutation
Solution
A point mutation is a change in a single nucleotide in the DNA sequence.
Correct Answer: B — Point mutation
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Q. What type of mutation results in a premature stop codon?
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A.
Missense mutation
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B.
Nonsense mutation
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C.
Silent mutation
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D.
Frameshift mutation
Solution
A nonsense mutation introduces a premature stop codon, leading to truncated proteins.
Correct Answer: B — Nonsense mutation
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Q. What type of pathogen is Candida albicans?
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A.
Bacterium
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B.
Virus
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C.
Fungus
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D.
Protozoan
Solution
Candida albicans is a fungus that can cause opportunistic infections, particularly in immunocompromised individuals.
Correct Answer: C — Fungus
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Q. What type of plant cell is dead at maturity and provides rigid support?
-
A.
Parenchyma
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B.
Collenchyma
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C.
Sclerenchyma
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D.
Meristematic
Solution
Sclerenchyma cells are dead at maturity and provide structural support due to their thick, lignified walls.
Correct Answer: C — Sclerenchyma
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Q. What type of plant cell is specialized for water storage?
-
A.
Sclerenchyma
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B.
Collenchyma
-
C.
Parenchyma
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D.
Epidermal cells
Solution
Parenchyma cells can store water and nutrients, making them essential for plant hydration and metabolism.
Correct Answer: C — Parenchyma
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Q. What type of plant is characterized by having flowers and producing fruits?
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A.
Angiosperms
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B.
Gymnosperms
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C.
Ferns
-
D.
Mosses
Solution
Angiosperms are flowering plants that produce fruits containing seeds.
Correct Answer: A — Angiosperms
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Q. What type of plant is characterized by having needle-like leaves?
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A.
Deciduous trees
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B.
Conifers
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C.
Ferns
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D.
Cacti
Solution
Conifers, such as pines and spruces, are known for their needle-like leaves which help reduce water loss.
Correct Answer: B — Conifers
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Q. What type of plant is characterized by having seeds enclosed in a fruit?
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A.
Gymnosperms
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B.
Angiosperms
-
C.
Ferns
-
D.
Mosses
Solution
Angiosperms are flowering plants that produce seeds enclosed in fruits.
Correct Answer: B — Angiosperms
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Q. What type of plant is characterized by having seeds that are not enclosed in an ovary?
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A.
Angiosperms
-
B.
Gymnosperms
-
C.
Bryophytes
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D.
Pteridophytes
Solution
Gymnosperms are characterized by having seeds that are exposed or not enclosed in an ovary.
Correct Answer: B — Gymnosperms
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Q. What type of plant is commonly used in traditional medicine for its antimicrobial properties?
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A.
Cacti
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B.
Herbs
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C.
Ferns
-
D.
Mosses
Solution
Herbs, such as garlic and oregano, are well-known for their antimicrobial properties.
Correct Answer: B — Herbs
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Q. What type of plant is commonly used in traditional medicine to alleviate stress and anxiety?
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A.
Cacti
-
B.
Succulents
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C.
Adaptogens
-
D.
Ferns
Solution
Adaptogens, such as ashwagandha and rhodiola, are used to help the body manage stress.
Correct Answer: C — Adaptogens
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Q. What type of plant is commonly used in traditional medicine to boost the immune system?
-
A.
Herbs
-
B.
Ferns
-
C.
Mosses
-
D.
Cacti
Solution
Herbs, such as echinacea, are often used to enhance immune function.
Correct Answer: A — Herbs
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Q. What type of plant is commonly used in traditional medicine to lower blood sugar levels?
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A.
Cinnamon
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B.
Mint
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C.
Rosemary
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D.
Thyme
Solution
Cinnamon has been shown to help lower blood sugar levels in various studies.
Correct Answer: A — Cinnamon
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Q. What type of plant is commonly used to produce insulin for diabetes treatment?
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A.
Cacti
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B.
Algae
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C.
Bacteria
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D.
Yeast
Solution
While not a plant, insulin is often produced using genetically modified bacteria or yeast.
Correct Answer: B — Algae
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Q. What type of plant is known for producing compounds that can inhibit cancer cell growth?
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A.
Cacti
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B.
Medicinal herbs
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C.
Ornamental plants
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D.
Aquatic plants
Solution
Medicinal herbs often contain bioactive compounds that can inhibit cancer cell growth.
Correct Answer: B — Medicinal herbs
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Q. What type of plant is primarily adapted to survive in arid environments?
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A.
Hydrophytes
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B.
Xerophytes
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C.
Mesophytes
-
D.
Halophytes
Solution
Xerophytes are specialized plants that have adaptations to conserve water in arid environments.
Correct Answer: B — Xerophytes
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Q. What type of plant life cycle alternates between a haploid gametophyte and a diploid sporophyte?
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A.
Monocarpic
-
B.
Dioecious
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C.
Alternation of generations
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D.
Annual
Solution
The alternation of generations is a life cycle characteristic of plants where they alternate between a haploid gametophyte and a diploid sporophyte.
Correct Answer: C — Alternation of generations
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Q. What type of plant reproduction involves the fusion of male and female gametes?
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A.
Asexual reproduction
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B.
Vegetative propagation
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C.
Sexual reproduction
-
D.
Apomixis
Solution
Sexual reproduction involves the fusion of male and female gametes, leading to genetic diversity.
Correct Answer: C — Sexual reproduction
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Q. What type of plant secondary metabolite is often used in cancer treatment?
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A.
Alkaloids
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B.
Terpenes
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C.
Phenolics
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D.
Glycosides
Solution
Alkaloids, such as those found in the periwinkle plant, are used in chemotherapy.
Correct Answer: A — Alkaloids
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Q. What type of plant tissue is characterized by thickened cell walls and provides rigidity?
-
A.
Parenchyma
-
B.
Collenchyma
-
C.
Sclerenchyma
-
D.
Phloem
Solution
Sclerenchyma cells have thickened, lignified walls that provide structural support and rigidity to mature plants.
Correct Answer: C — Sclerenchyma
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Q. What type of plant tissue is responsible for photosynthesis?
-
A.
Xylem
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B.
Phloem
-
C.
Parenchyma
-
D.
Sclerenchyma
Solution
Parenchyma cells, particularly in leaves, are primarily responsible for photosynthesis.
Correct Answer: C — Parenchyma
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Q. What type of plant tissue is responsible for the transport of water and minerals?
-
A.
Phloem
-
B.
Xylem
-
C.
Cortex
-
D.
Parenchyma
Solution
Xylem is the plant tissue responsible for the transport of water and dissolved minerals from the roots to the rest of the plant.
Correct Answer: B — Xylem
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Q. What type of plant tissue is responsible for the transport of water?
-
A.
Phloem
-
B.
Xylem
-
C.
Cortex
-
D.
Parenchyma
Solution
Xylem is the plant tissue responsible for the transport of water and minerals from roots to leaves.
Correct Answer: B — Xylem
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Q. What type of pollination occurs when pollen is transferred from the anther of one flower to the stigma of another flower of the same species?
-
A.
Self-pollination
-
B.
Cross-pollination
-
C.
Wind pollination
-
D.
Water pollination
Solution
Cross-pollination involves the transfer of pollen between different flowers of the same species.
Correct Answer: B — Cross-pollination
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Q. What type of reproduction do flowering plants primarily use?
-
A.
Asexual reproduction
-
B.
Vegetative propagation
-
C.
Sexual reproduction
-
D.
Budding
Solution
Flowering plants primarily use sexual reproduction, which involves the formation of seeds through the fertilization of ovules.
Correct Answer: C — Sexual reproduction
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Q. What type of reproduction involves the fusion of gametes from two different individuals?
-
A.
Asexual reproduction
-
B.
Vegetative propagation
-
C.
Sexual reproduction
-
D.
Apomixis
Solution
Sexual reproduction involves the fusion of male and female gametes from different individuals.
Correct Answer: C — Sexual reproduction
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