Q. In which of the following organisms does external fertilization typically occur? (2019)
-
A.
Humans
-
B.
Frogs
-
C.
Birds
-
D.
Reptiles
Solution
Frogs typically exhibit external fertilization, where eggs and sperm are released into the water.
Correct Answer:
B
— Frogs
Learn More →
Q. In which of the following processes is adsorption utilized? (2023)
-
A.
Water purification
-
B.
Sublimation
-
C.
Distillation
-
D.
Filtration
Solution
Adsorption is widely used in water purification processes to remove impurities.
Correct Answer:
A
— Water purification
Learn More →
Q. In which of the following processes is the enthalpy change (ΔH) equal to the heat absorbed at constant pressure? (2019)
-
A.
Isothermal process
-
B.
Isochoric process
-
C.
Isobaric process
-
D.
Adiabatic process
Solution
In an isobaric process, the enthalpy change (ΔH) is equal to the heat absorbed or released at constant pressure.
Correct Answer:
C
— Isobaric process
Learn More →
Q. In which of the following processes is the enthalpy change equal to the heat absorbed by the system at constant pressure? (2019)
-
A.
Isothermal process
-
B.
Isochoric process
-
C.
Isobaric process
-
D.
Adiabatic process
Solution
In an isobaric process, the enthalpy change is equal to the heat absorbed by the system at constant pressure.
Correct Answer:
C
— Isobaric process
Learn More →
Q. In which of the following scenarios does the buoyant force act?
-
A.
An object floating on water
-
B.
A balloon rising in air
-
C.
A ship in the ocean
-
D.
All of the above
Solution
The buoyant force acts on any object submerged in a fluid, including floating objects, balloons, and ships.
Correct Answer:
D
— All of the above
Learn More →
Q. In which part of the chloroplast does the Calvin cycle take place? (2019)
-
A.
Thylakoid membrane
-
B.
Stroma
-
C.
Granum
-
D.
Outer membrane
Solution
The Calvin cycle takes place in the stroma of the chloroplast.
Correct Answer:
B
— Stroma
Learn More →
Q. In which part of the flower does fertilization occur? (2019)
-
A.
Stamen
-
B.
Ovary
-
C.
Style
-
D.
Petal
Solution
Fertilization occurs in the ovary, where the male gamete from the pollen fuses with the female gamete in the ovule.
Correct Answer:
B
— Ovary
Learn More →
Q. In which part of the plant does most of the photosynthesis occur?
-
A.
Roots
-
B.
Stems
-
C.
Leaves
-
D.
Flowers
Solution
Most of the photosynthesis occurs in the leaves, where chloroplasts are abundant.
Correct Answer:
C
— Leaves
Learn More →
Q. In which part of the plant does most of the respiration occur? (2020)
-
A.
Roots
-
B.
Leaves
-
C.
Stems
-
D.
Flowers
Solution
Most of the respiration occurs in the roots, where energy is needed for nutrient uptake and growth.
Correct Answer:
A
— Roots
Learn More →
Q. In which part of the plant does most respiration occur? (2020)
-
A.
Roots
-
B.
Leaves
-
C.
Stems
-
D.
Flowers
Solution
Most respiration occurs in the roots, where energy is needed for nutrient uptake and growth.
Correct Answer:
A
— Roots
Learn More →
Q. In which part of the plant does most transpiration occur?
-
A.
Roots
-
B.
Stems
-
C.
Leaves
-
D.
Flowers
Solution
Most transpiration occurs in the leaves, where stomata are located to facilitate gas exchange and water loss.
Correct Answer:
C
— Leaves
Learn More →
Q. In which part of the plant does most water absorption occur?
-
A.
Leaves
-
B.
Stems
-
C.
Roots
-
D.
Flowers
Solution
Most water absorption occurs in the roots, where root hairs increase the surface area for absorption.
Correct Answer:
C
— Roots
Learn More →
Q. In which part of the plant does respiration primarily occur? (2020)
-
A.
Roots
-
B.
Leaves
-
C.
Stems
-
D.
All parts
Solution
Respiration occurs in all parts of the plant, including roots, leaves, and stems.
Correct Answer:
D
— All parts
Learn More →
Q. In which part of the plant does the majority of photosynthesis occur?
-
A.
Roots
-
B.
Stems
-
C.
Leaves
-
D.
Flowers
Solution
Leaves are the primary site of photosynthesis due to the presence of chlorophyll in chloroplasts.
Correct Answer:
C
— Leaves
Learn More →
Q. In which phase do sister chromatids separate and move to opposite poles of the cell? (2019)
-
A.
Prophase
-
B.
Metaphase
-
C.
Anaphase
-
D.
Telophase
Solution
During Anaphase, sister chromatids are pulled apart and move towards opposite poles of the cell.
Correct Answer:
C
— Anaphase
Learn More →
Q. In which phase do sister chromatids separate and move to opposite poles? (2019)
-
A.
Prophase
-
B.
Metaphase
-
C.
Anaphase
-
D.
Telophase
Solution
During Anaphase, sister chromatids are pulled apart and move toward opposite poles of the cell.
Correct Answer:
C
— Anaphase
Learn More →
Q. In which phase do sister chromatids separate and move towards opposite poles? (2022)
-
A.
Prophase
-
B.
Metaphase
-
C.
Anaphase
-
D.
Telophase
Solution
During Anaphase, sister chromatids are pulled apart and move towards opposite poles of the cell.
Correct Answer:
C
— Anaphase
Learn More →
Q. In which phase of the cell cycle does cytokinesis occur? (2021)
-
A.
G1 phase
-
B.
S phase
-
C.
M phase
-
D.
G2 phase
Solution
Cytokinesis occurs during the M phase, following mitosis, to divide the cytoplasm and form two daughter cells.
Correct Answer:
C
— M phase
Learn More →
Q. In which phase of the cell cycle does the cell spend most of its life? (2021)
-
A.
M phase
-
B.
G1 phase
-
C.
S phase
-
D.
G2 phase
Solution
The G1 phase is where the cell spends most of its time growing and performing its normal functions.
Correct Answer:
B
— G1 phase
Learn More →
Q. In which phase of the cell cycle does the cell spend the majority of its life? (2021)
-
A.
M phase
-
B.
G1 phase
-
C.
S phase
-
D.
G2 phase
Solution
The G1 phase is where the cell spends most of its life, performing normal functions and growing.
Correct Answer:
B
— G1 phase
Learn More →
Q. In which process does a substance change from solid to gas without becoming liquid? (2022)
-
A.
Melting
-
B.
Sublimation
-
C.
Condensation
-
D.
Evaporation
Solution
The process in which a substance changes from solid to gas without becoming liquid is called sublimation.
Correct Answer:
B
— Sublimation
Learn More →
Q. In which process does a substance change from solid to gas? (2022)
-
A.
Melting
-
B.
Sublimation
-
C.
Evaporation
-
D.
Condensation
Solution
The process in which a substance changes from solid to gas is called sublimation.
Correct Answer:
B
— Sublimation
Learn More →
Q. In which state of matter do particles have the highest energy? (2023)
-
A.
Solid
-
B.
Liquid
-
C.
Gas
-
D.
Bose-Einstein Condensate
Solution
Gas particles have the highest energy compared to solids and liquids, allowing them to move freely and occupy more space.
Correct Answer:
C
— Gas
Learn More →
Q. In which state of matter do particles have the least amount of energy?
-
A.
Solid
-
B.
Liquid
-
C.
Gas
-
D.
Plasma
Solution
Particles in a solid have the least amount of energy compared to liquids, gases, and plasma.
Correct Answer:
A
— Solid
Learn More →
Q. In which state of matter do particles have the strongest intermolecular forces? (2023)
-
A.
Gas
-
B.
Liquid
-
C.
Solid
-
D.
Plasma
Solution
In solids, particles are held together by strong intermolecular forces, giving them a definite shape and volume.
Correct Answer:
C
— Solid
Learn More →
Q. In which state of matter do particles move freely and are far apart? (2021)
-
A.
Solid
-
B.
Liquid
-
C.
Gas
-
D.
None of the above
Solution
In gases, particles move freely and are far apart compared to solids and liquids.
Correct Answer:
C
— Gas
Learn More →
Q. In which type of collision is kinetic energy conserved? (2019)
-
A.
Elastic collision
-
B.
Inelastic collision
-
C.
Perfectly inelastic collision
-
D.
All of the above
Solution
In an elastic collision, both momentum and kinetic energy are conserved.
Correct Answer:
A
— Elastic collision
Learn More →
Q. In which type of interaction do both species benefit? (2023)
-
A.
Predation
-
B.
Competition
-
C.
Mutualism
-
D.
Parasitism
Solution
Mutualism is an interaction where both species involved benefit from the relationship.
Correct Answer:
C
— Mutualism
Learn More →
Q. In which type of population distribution do individuals have a uniform distance between them? (2019)
-
A.
Random
-
B.
Clumped
-
C.
Uniform
-
D.
None of the above
Solution
Uniform distribution occurs when individuals are evenly spaced, often due to competition for resources.
Correct Answer:
C
— Uniform
Learn More →
Q. In which type of population growth does the growth rate decrease as the population reaches its carrying capacity? (2019)
-
A.
Exponential growth
-
B.
Logistic growth
-
C.
Linear growth
-
D.
Cyclic growth
Solution
Logistic growth describes a population that grows rapidly at first and then slows as it approaches the carrying capacity.
Correct Answer:
B
— Logistic growth
Learn More →
Showing 1891 to 1920 of 5509 (184 Pages)