Q. Which type of reproduction is characterized by the formation of a new organism from a part of the parent organism? (2023)
-
A.
Budding
-
B.
Binary fission
-
C.
Fragmentation
-
D.
All of the above
Solution
All of the mentioned methods (budding, binary fission, and fragmentation) involve the formation of new organisms from parts of the parent.
Correct Answer:
D
— All of the above
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Q. Which type of reproduction is most common in fungi? (2023)
-
A.
Asexual reproduction
-
B.
Sexual reproduction
-
C.
Both asexual and sexual reproduction
-
D.
None of the above
Solution
Fungi can reproduce both asexually (through spores) and sexually (through the fusion of hyphae).
Correct Answer:
C
— Both asexual and sexual reproduction
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Q. Which type of reproduction is most common in unicellular organisms? (2019)
-
A.
Sexual reproduction
-
B.
Asexual reproduction
-
C.
Budding
-
D.
Fragmentation
Solution
Asexual reproduction is most common in unicellular organisms, allowing for rapid population growth.
Correct Answer:
B
— Asexual reproduction
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Q. Which type of reproduction is most likely to occur in stable environments? (2023)
-
A.
Asexual reproduction
-
B.
Sexual reproduction
-
C.
Budding
-
D.
Fragmentation
Solution
Asexual reproduction is favored in stable environments as it allows for rapid population increase without the need for mates.
Correct Answer:
A
— Asexual reproduction
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Q. Which type of reproduction results in offspring that are genetically identical to the parent? (2022)
-
A.
Asexual reproduction
-
B.
Sexual reproduction
-
C.
Both asexual and sexual reproduction
-
D.
None of the above
Solution
Asexual reproduction results in offspring that are genetically identical to the parent organism.
Correct Answer:
A
— Asexual reproduction
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Q. Which type of root system is characteristic of monocots? (2020)
-
A.
Tap root system
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B.
Fibrous root system
-
C.
Adventitious root system
-
D.
Lateral root system
Solution
Monocots typically have a fibrous root system, which consists of many thin roots that spread out.
Correct Answer:
B
— Fibrous root system
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Q. Which type of root system is characterized by a single main root with smaller lateral roots? (2020)
-
A.
Fibrous root system
-
B.
Tap root system
-
C.
Adventitious root system
-
D.
Modified root system
Solution
A tap root system is characterized by a single main root that grows deeper into the soil with smaller lateral roots.
Correct Answer:
B
— Tap root system
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Q. Which type of satellite orbit is best for monitoring weather patterns?
-
A.
Geostationary orbit
-
B.
Polar orbit
-
C.
Elliptical orbit
-
D.
Low Earth orbit
Solution
Geostationary satellites are ideal for monitoring weather patterns as they provide a constant view of the same area.
Correct Answer:
A
— Geostationary orbit
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Q. Which type of satellite orbit is best for weather monitoring?
-
A.
Geostationary orbit
-
B.
Polar orbit
-
C.
Elliptical orbit
-
D.
Low Earth orbit
Solution
Geostationary orbits are ideal for weather monitoring as they provide a constant view of the same area of the Earth.
Correct Answer:
A
— Geostationary orbit
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Q. Which type of semiconductor has a higher concentration of holes? (2023)
-
A.
N-type
-
B.
P-type
-
C.
Intrinsic
-
D.
Extrinsic
Solution
P-type semiconductors have a higher concentration of holes compared to N-type semiconductors.
Correct Answer:
B
— P-type
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Q. Which type of semiconductor has an excess of electrons?
-
A.
P-type
-
B.
N-type
-
C.
Intrinsic
-
D.
Extrinsic
Solution
N-type semiconductors have an excess of electrons due to the addition of donor impurities.
Correct Answer:
B
— N-type
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Q. Which type of semiconductor is formed by doping silicon with phosphorus? (2020)
-
A.
p-type
-
B.
n-type
-
C.
Intrinsic
-
D.
Superconducting
Solution
Doping silicon with phosphorus creates an n-type semiconductor due to the addition of extra electrons.
Correct Answer:
B
— n-type
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Q. Which type of soil is most commonly found in river valleys due to sediment deposition?
-
A.
Clay
-
B.
Sandy soil
-
C.
Loamy soil
-
D.
Silty soil
Solution
Loamy soil is a mixture of sand, silt, and clay, making it fertile and commonly found in river valleys due to sediment deposition.
Correct Answer:
C
— Loamy soil
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Q. Which type of solid has a definite melting point and is composed of molecules held together by van der Waals forces? (2022)
-
A.
Ionic solid
-
B.
Metallic solid
-
C.
Molecular solid
-
D.
Covalent solid
Solution
Molecular solids are composed of molecules held together by van der Waals forces and have a definite melting point.
Correct Answer:
C
— Molecular solid
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Q. Which type of solid has a definite melting point and is usually hard and brittle? (2022)
-
A.
Molecular solids
-
B.
Ionic solids
-
C.
Metallic solids
-
D.
Amorphous solids
Solution
Ionic solids have a definite melting point and are typically hard and brittle due to the strong ionic bonds between the ions.
Correct Answer:
B
— Ionic solids
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Q. Which type of solid has a definite melting point? (2022)
-
A.
Amorphous solid
-
B.
Crystalline solid
-
C.
Polymeric solid
-
D.
Metallic solid
Solution
Crystalline solids have a definite melting point due to their ordered structure, unlike amorphous solids which melt over a range of temperatures.
Correct Answer:
B
— Crystalline solid
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Q. Which type of solution does Raoult's Law apply to most accurately?
-
A.
Ideal solutions
-
B.
Non-ideal solutions
-
C.
Concentrated solutions
-
D.
Dilute solutions
Solution
Raoult's Law applies most accurately to ideal solutions, where interactions between different molecules are similar to those in pure substances.
Correct Answer:
A
— Ideal solutions
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Q. Which type of storage device is known for its speed and durability?
-
A.
HDD
-
B.
SSD
-
C.
CD-ROM
-
D.
Floppy Disk
Solution
SSD (Solid State Drive) is known for its speed and durability compared to traditional HDDs (Hard Disk Drives).
Correct Answer:
B
— SSD
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Q. Which type of tissue is responsible for movement in animals? (2019)
-
A.
Epithelial Tissue
-
B.
Connective Tissue
-
C.
Muscle Tissue
-
D.
Nervous Tissue
Solution
Muscle tissue is responsible for movement in animals.
Correct Answer:
C
— Muscle Tissue
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Q. Which type of tissue is responsible for the movement of the body? (2021)
-
A.
Epithelial Tissue
-
B.
Connective Tissue
-
C.
Muscle Tissue
-
D.
Nervous Tissue
Solution
Muscle tissue is responsible for the movement of the body.
Correct Answer:
C
— Muscle Tissue
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Q. Which type of white blood cell is primarily involved in the immune response? (2019)
-
A.
Erythrocytes
-
B.
Neutrophils
-
C.
Thrombocytes
-
D.
Lymphocytes
Solution
Lymphocytes are a type of white blood cell that plays a key role in the immune response.
Correct Answer:
D
— Lymphocytes
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Q. Which vitamin can be synthesized by the body when exposed to sunlight?
-
A.
Vitamin A
-
B.
Vitamin B12
-
C.
Vitamin C
-
D.
Vitamin D
Solution
Vitamin D can be synthesized by the body when the skin is exposed to sunlight.
Correct Answer:
D
— Vitamin D
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Q. Which vitamin deficiency can lead to night blindness?
-
A.
Vitamin A
-
B.
Vitamin B12
-
C.
Vitamin C
-
D.
Vitamin D
Solution
A deficiency in Vitamin A can lead to night blindness, as it is crucial for maintaining healthy vision.
Correct Answer:
A
— Vitamin A
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Q. Which vitamin deficiency can lead to scurvy?
-
A.
Vitamin A
-
B.
Vitamin C
-
C.
Vitamin K
-
D.
Vitamin B1
Solution
A deficiency in Vitamin C can lead to scurvy, characterized by symptoms such as bleeding gums and fatigue.
Correct Answer:
B
— Vitamin C
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Q. Which vitamin deficiency leads to scurvy? (2019)
-
A.
Vitamin A
-
B.
Vitamin B12
-
C.
Vitamin C
-
D.
Vitamin D
Solution
Scurvy is caused by a deficiency of Vitamin C.
Correct Answer:
C
— Vitamin C
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Q. Which vitamin is a coenzyme in the metabolism of carbohydrates? (2019)
-
A.
Vitamin A
-
B.
Vitamin B1
-
C.
Vitamin C
-
D.
Vitamin D
Solution
Vitamin B1 (thiamine) acts as a coenzyme in carbohydrate metabolism.
Correct Answer:
B
— Vitamin B1
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Q. Which vitamin is a powerful antioxidant?
-
A.
Vitamin A
-
B.
Vitamin C
-
C.
Vitamin E
-
D.
Vitamin D
Solution
Vitamin E is known for its antioxidant properties, helping to protect cells from oxidative damage.
Correct Answer:
C
— Vitamin E
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Q. Which vitamin is also known as thiamine?
-
A.
Vitamin B1
-
B.
Vitamin B2
-
C.
Vitamin B3
-
D.
Vitamin B6
Solution
Vitamin B1 is also known as thiamine and is important for carbohydrate metabolism and nerve function.
Correct Answer:
A
— Vitamin B1
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Q. Which vitamin is commonly known as ascorbic acid?
-
A.
Vitamin A
-
B.
Vitamin B12
-
C.
Vitamin C
-
D.
Vitamin D
Solution
Ascorbic acid is the chemical name for Vitamin C, which is important for immune function.
Correct Answer:
C
— Vitamin C
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Q. Which vitamin is crucial for red blood cell formation?
-
A.
Vitamin B6
-
B.
Vitamin B12
-
C.
Vitamin C
-
D.
Vitamin D
Solution
Vitamin B12 is crucial for the formation of red blood cells and the maintenance of the nervous system.
Correct Answer:
B
— Vitamin B12
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