Biology Life Processes Class 10 MCQ. We covered all the Biology Life Processes Class 10 MCQ in this post for free so that you can practice well for the exam.
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MCQ on Biology Life Processes for Class 10 Students
Which of the following is made up of dead cells?
(A) Xylem parenchyma
(B) Collenchyma
(C) Phellem
(D) Phloem
Option c – Phellem
(A) The Amount of DNA in the parent cell is first halved and then distributed into two daughter cells.
(B) The amount of DNA in the parent cell is first doubled and then distributed into two daughter cells.
(C) The amount of DNA in the parent cell is first halved and then distributed into four daughter cells.
(D) The amount of DNA in the parent cell is first doubled and then distributed into four daughter cells.
Option b – The amount of DNA in the parent cell is first doubled and then distributed into two daughter cells.
Which of the following facilitates the opening of the stomatal aperture?
(A) Contraction of the outer wall of guard cells
(B) Decrease in turgidity of guard cells
(C) Radial orientation of cellulose microfibrils in the cell wall of guard cells
(D) Longitudinal orientation of cellulose microfibrils in the cell wall of guard cell
Option c – Radial orientation of cellulose microfibrils in the cell wall of guard cells
In the Krebs cycle, guanosine triphosphate is formed during the conversion of
(A) Isocitrate to oxalosuccinate
(B) Oxalosuccinate to a-ketoglutarate
(C) Succinyl CoA to succinate
(D) Fumarate to malate
Option c – Succinyl CoA to succinate
Study the following statements and select the correct option. Statement I: Syncarpous condition is a characteristic feature of mustard flowers. Statement II: In syncarpous condition, stamens are united by their anthers only, and filaments remain free. The correct statement/s is/are
(A) Statement I
(B) Statement II
(C) Both Statements I and II
(D) Neither Statement I nor II
Option a – Statement I
Which is the most common type of embryo sac in angiosperms?
(A) Bisporic with two sequential mitotic divisions
(B) Tetrasporic with one mitotic stage of divisions
(C) Monosporic with three sequential mitotic divisions
(D) Monosporic with two sequential mitotic divisions
Option c – Monosporic with three sequential mitotic divisions
A population growing in a habitat with limited resources shows four phases of growth in the following sequence
(A) Acceleration → Deceleration → Lag phase → Asymptote
(B) Asymptote Acceleration – Deceleration → Lag phase
(C) Lag phase – Acceleration – Deceleration → Asymptote
(D) Acceleration → Lag phase – Deceleration → Asymptote
Option c – Lag phase – Acceleration – Deceleration → Asymptote
Which of the following statements is INCORRECT?
(A) Energy content gradually increases from the first to fourth trophic level
(B) Number of individuals decreases from the first trophic level to the fourth trophic level
(C) Energy content gradually decreases from the first to fourth trophic level
(D) Biomass decreases from the first to fourth trophic level
Option a – Energy content gradually increases from the first to fourth trophic level
The problem of Prickly Pear Cactus in Australia which caused havoc by spreading over millions of hectares of land was solved
(A) by removing all the Prickly Pear Cactus species from the land.
(B) by introducing another cactus species to let two species compete.
(C) by introducing their natural predator species,
(D) by applying insecticides that killed all the cactus plants.
Option c – by introducing their natural predator species
Which is the basis of genetic mapping of the human genome as well as DNA fingerprinting?
(A) Single nucleotide polymorphism
(B) Polymorphism in hnRNA sequence
(C) Polymorphism in RNA sequence
(D) Polymorphism in DNA sequence
Option d – Polymorphism in DNA sequence
IPM stands for
(A) International Population Management
(B) Integrated Pest Management
(C) International Plant Management
(D) Integrated Plant Management
Option b – Integrated Pest Management
Which of the following is CORRECT for r-selected species?
(A) A small number of progeny with a large size
(B) a Large number of progeny with small size
(C) a Large number of progeny with large size
(D) a small number of progeny with a small size
Option b – a Large number of progeny with small size
Identify the odd pair.
(A) Movement of nutrients in the ecosystem: Biogeochemical cycles
(B) Reservoir for sedimentary cycle: Atmosphere
(C) Amount of nutrients present in the soil at a given time: Standing state
(D) Reservoir of carbon: Fossil fuel
Option b – Reservoir for sedimentary cycle: Atmosphere
Which one of the following aspects is an exclusive characteristic of living things?
(A) Isolated metabolic reactions occur in vitro.
(B) Increase in mass from inside only.
(C) Perception of events happening in the environment and their memory.
(D) Increase in mass by the accumulation of material both on the surface as well as internally.
Option c – Perception of events happening in the environment and their memory
The embryo sac is called monosporic when it develops from
(A) all the four megaspores
(B) only from two functional megaspores
(C) three megaspores of the same size
(D) one of the functional megaspores out of the four megaspores
Option d – one of the functional megaspores out of the four megaspores
The Government of India in the 1980s introduced a concept to work closely with the local communities for protecting and managing forests. The concept is
(A) Forest Research Institutes
(B) Panel of Local Communities for Forest Management
(C) Joint Forest Management
(D) Jhum Cultivation
Option c – Joint Forest Management
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