Q. What is the term for the process of muscle fibers increasing in size? (2023)
A.
Hypertrophy
B.
Atrophy
C.
Hyperplasia
D.
Dystrophy
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Solution
Hypertrophy refers to the increase in size of muscle fibers, often as a result of resistance training.
Correct Answer: A — Hypertrophy
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Q. What is the term for the process of urine formation? (2020)
A.
Filtration
B.
Reabsorption
C.
Secretion
D.
All of the above
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Solution
Urine formation involves filtration, reabsorption, and secretion processes in the nephron.
Correct Answer: D — All of the above
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Q. What is the term for the process where an organism develops from an unfertilized egg? (2020)
A.
Asexual reproduction
B.
Parthenogenesis
C.
Budding
D.
Fission
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Solution
Parthenogenesis is a form of asexual reproduction where an organism develops from an unfertilized egg.
Correct Answer: B — Parthenogenesis
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Q. What is the term for the ratio of the density of a substance to the density of a reference substance, typically water?
A.
Specific gravity
B.
Viscosity
C.
Pressure
D.
Buoyancy
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Solution
Specific gravity is the ratio of the density of a substance to the density of a reference substance, typically water.
Correct Answer: A — Specific gravity
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Q. What is the term for the temperature at which a substance changes from liquid to gas? (2023)
A.
Melting point
B.
Boiling point
C.
Freezing point
D.
Sublimation point
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Solution
The temperature at which a substance changes from liquid to gas is called the boiling point.
Correct Answer: B — Boiling point
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Q. What is the term for the transfer of pollen from anther to stigma? (2020)
A.
Fertilization
B.
Pollination
C.
Germination
D.
Propagation
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Solution
The transfer of pollen from the anther to the stigma is called pollination.
Correct Answer: B — Pollination
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Q. What is the term for the transfer of pollen from one flower to another? (2023)
A.
Self-pollination
B.
Cross-pollination
C.
Fertilization
D.
Germination
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Solution
Cross-pollination refers to the transfer of pollen from the anther of one flower to the stigma of another flower.
Correct Answer: B — Cross-pollination
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Q. What is the term for the transfer of pollen from the anther to the stigma of the same flower? (2019)
A.
Self-pollination
B.
Cross-pollination
C.
Autogamy
D.
Geitonogamy
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Solution
Self-pollination refers to the transfer of pollen from the anther to the stigma of the same flower, leading to fertilization.
Correct Answer: A — Self-pollination
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Q. What is the term for the transfer of pollen from the male part to the female part of a flower? (2021)
A.
Fertilization
B.
Pollination
C.
Germination
D.
Propagation
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Solution
Pollination is the transfer of pollen from the male part (anther) to the female part (stigma) of a flower.
Correct Answer: B — Pollination
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Q. What is the term for the variety of life in the world or in a particular habitat or ecosystem? (2020)
A.
Biodiversity
B.
Ecology
C.
Biogeography
D.
Conservation
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Solution
Biodiversity refers to the variety of life in the world or in a particular habitat or ecosystem, encompassing species diversity, genetic diversity, and ecosystem diversity.
Correct Answer: A — Biodiversity
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Q. What is the term for the volume of air that can be forcibly exhaled after a normal exhalation? (2023)
A.
Tidal volume
B.
Vital capacity
C.
Expiratory reserve volume
D.
Inspiratory reserve volume
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Solution
Expiratory reserve volume is the amount of air that can be forcibly exhaled after the end of a normal exhalation.
Correct Answer: C — Expiratory reserve volume
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Q. What is the term used for the process of removing adsorbed molecules from a surface? (2020)
A.
Desorption
B.
Absorption
C.
Sorption
D.
Adsorption
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Solution
Desorption is the process of removing adsorbed molecules from a surface, while adsorption is the process of molecules adhering to a surface.
Correct Answer: A — Desorption
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Q. What is the term used for the scientific study of classification? (2022)
A.
Phylogeny
B.
Taxonomy
C.
Morphology
D.
Ecology
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Solution
Taxonomy is the scientific study of classification, naming, and identifying organisms.
Correct Answer: B — Taxonomy
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Q. What is the term used for the scientific study of living organisms? (2020)
A.
Biology
B.
Zoology
C.
Botany
D.
Ecology
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Solution
Biology is the scientific study of living organisms.
Correct Answer: A — Biology
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Q. What is the term used for the study of living organisms? (2021)
A.
Biology
B.
Zoology
C.
Botany
D.
Ecology
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Solution
Biology is the term used for the study of living organisms.
Correct Answer: A — Biology
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Q. What is the total current flowing in a circuit with a 9V battery and a total resistance of 3 ohms? (2020)
A.
1 A
B.
2 A
C.
3 A
D.
4 A
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Solution
Using Ohm's law, I = V/R = 9V / 3Ω = 3 A.
Correct Answer: B — 2 A
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Q. What is the total current flowing in a circuit with three resistors in parallel, each carrying 2 A? (2021)
A.
2 A
B.
4 A
C.
6 A
D.
8 A
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Solution
In parallel, the total current is the sum of the currents: 2 A + 2 A + 2 A = 6 A.
Correct Answer: C — 6 A
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Q. What is the total current flowing in a parallel circuit with two branches carrying 2 A and 3 A respectively? (2023)
A.
5 A
B.
6 A
C.
1 A
D.
2.5 A
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Solution
In a parallel circuit, the total current is the sum of the currents in each branch: 2 A + 3 A = 5 A.
Correct Answer: A — 5 A
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Q. What is the total current in a circuit with a 12V battery and two 6Ω resistors in series? (2021)
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Solution
Total resistance R = 6 + 6 = 12Ω. Current I = V/R = 12V/12Ω = 1A.
Correct Answer: B — 2A
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Q. What is the total current in a circuit with a 9V battery and two 3Ω resistors in series? (2021)
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Solution
Total resistance R = 3Ω + 3Ω = 6Ω. Current I = V/R = 9V/6Ω = 1.5A.
Correct Answer: A — 1A
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Q. What is the total current in a circuit with two branches, one carrying 2A and the other 3A? (2021)
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Solution
In parallel circuits, the total current is the sum of the currents in each branch: 2A + 3A = 5A.
Correct Answer: A — 5A
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Q. What is the total current in a circuit with two branches, one carrying 3A and the other 5A? (2021)
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Solution
In parallel circuits, the total current is the sum of the currents in each branch: 3A + 5A = 8A.
Correct Answer: D — 8A
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Q. What is the total current in a parallel circuit with two branches carrying 2 A and 3 A respectively? (2023)
A.
5 A
B.
6 A
C.
1 A
D.
2.5 A
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Solution
In a parallel circuit, the total current is the sum of the currents in the branches: 2 A + 3 A = 5 A.
Correct Answer: A — 5 A
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Q. What is the total mechanical energy of an object in free fall just before it hits the ground? (2022)
A.
Zero
B.
Potential energy only
C.
Kinetic energy only
D.
Total energy is conserved
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Solution
The total mechanical energy of an object in free fall is conserved, meaning it remains constant as potential energy converts to kinetic energy.
Correct Answer: D — Total energy is conserved
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Q. What is the total power consumed in a circuit with a power factor of 0.6, if the apparent power is 100 VA? (2023)
A.
60 W
B.
100 W
C.
40 W
D.
80 W
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Solution
The real power (P) can be calculated using P = Power Factor × Apparent Power. Therefore, P = 0.6 × 100 VA = 60 W.
Correct Answer: A — 60 W
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Q. What is the total resistance of two resistors, 4 ohms and 6 ohms, connected in series? (2021)
A.
10 ohms
B.
24 ohms
C.
2.4 ohms
D.
0.67 ohms
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Solution
In series, total resistance R = R1 + R2 = 4 Ω + 6 Ω = 10 Ω.
Correct Answer: A — 10 ohms
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Q. What is the trend in atomic radius as you move down the alkali metal group? (2022)
A.
Increases
B.
Decreases
C.
Remains constant
D.
Increases then decreases
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Solution
The atomic radius increases as you move down the alkali metal group due to the addition of electron shells.
Correct Answer: A — Increases
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Q. What is the trend in reactivity of alkali metals down the group? (2022)
A.
Increases
B.
Decreases
C.
Remains constant
D.
Varies irregularly
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Solution
The reactivity of alkali metals increases down the group due to the decrease in ionization energy.
Correct Answer: A — Increases
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Q. What is the typical current-voltage characteristic of a diode in reverse bias? (2019)
A.
Linear
B.
Exponential
C.
Constant
D.
Very small reverse saturation current
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Solution
In reverse bias, a diode exhibits a very small reverse saturation current until breakdown occurs.
Correct Answer: D — Very small reverse saturation current
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Q. What is the typical forward voltage drop across a silicon diode? (2023)
A.
0.2 V
B.
0.7 V
C.
1.5 V
D.
2.0 V
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Solution
The typical forward voltage drop across a silicon diode is approximately 0.7 V.
Correct Answer: B — 0.7 V
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