Biology ยท Science General
Cell Biology and Structure
3,062 Questions
Cell biology focuses on the structure and function of cellular organelles. Key topics include cellular respiration, DNA inheritance, and energy production. These fundamental biology concepts are crucial for medical entrance and state service examinations.
Cell organelles functionsCellular respiration sitesDNA and ribosomesAnimal cell structurePlant cell components
Cell Biology and Structure Questions
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fusion of nuclei
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fusion of cytoplasms
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fusion of plastids
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fusion of mitochondria
B
Correct answer
Explanation
Cybrids are formed by fusion of cytoplasms only.
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Nucleus
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Mitochondria
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SAT chromosome
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DNA
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Polytene chromosome
C
Correct answer
Explanation
Nucleolus is formed from SAT chromosome.
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Lamina propria
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Lipid layer
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Cell membrane
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Nucleoplasmin
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Nucleolus
D
Correct answer
Explanation
Nucleoplasmin helps to facilitate the material exchange through nucleopores.
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active
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dead
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dividing
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dehydrated
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inactive
C
Correct answer
Explanation
A cell must be dividing if it has a large nucleus as compared to cytoplasm.
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ER
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Plasma membrane
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Mitochondria
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Nucleoplasm
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Cytoplasm
A
Correct answer
Explanation
Nuclear membrane is derived from endoplasmic reticulum.
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Sphingomyelin
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Phosphatidylserine
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Phosphatidylinositol
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Phosphatidylcholine
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Lecithin
B
Correct answer
Explanation
Phosphatidylserine is involved in programmed cell death, which is called apoptosis.
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apoptosis
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programmed cell-death
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cellular senescence
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negligible senescence
D
Correct answer
Explanation
It is defined as the lack of symptoms of aging in an organism. Particularly negligibly senescent animals do not have measurable reductions in their reproductive capability with age.
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Cell membrane
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Golgi apparatus
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Ribosome
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Endoplasmic reticulum
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Mitocondria
B
Correct answer
Explanation
A protein which is destined to be a glycoprotein is created in the golgi apparatus by its conjugation with carbohydrate.
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Desmosome
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Tight junction
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Nexus
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Semipermeable cell membrane
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Apoptosis
E
Correct answer
Explanation
Apoptosis is the normal process of cell death or cell suicide which occurs when the cell ages or can not heal itself after damage.
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A cell that harbors an inactive virus in its genome.
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A cell that has developed immunity from viral infection.
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A cell that undergoes self destruction.
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Any cell infected with a virus.
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A cell that is about to lyse as a result of viral infection.
A
Correct answer
Explanation
In the lysogenic cycle of viral infection is a cell that harbors inactive viral DNA in its genome.
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Type A(d) cells
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Type A(p) cells
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Type B cells
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Type C cells
D
Correct answer
Explanation
It is not a spermatogonium cell.
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Osteoblast
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Osteocyte
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Osteoderm
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Osteon
A
Correct answer
Explanation
Osteoblast is a large cell authoritative for the formation and mineralization of bone during both initial bone formation and bone remodeling.
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protein synthesis
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nucleic acid synthesis
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aminoacid synthesis
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carbohydrate synthesis
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vitamin synthesis
D
Correct answer
Explanation
It occurs in smooth endoplasmic reticulum.
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Suicide bags
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Demolition squads
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Power house of a cell
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Digestive bags
C
Correct answer
Explanation
Mitochondria is called as 'power house of a cell.'
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mitochondria
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ribosome
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golgi apparatus
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chromosomes
D
Correct answer
Explanation
Yes, it is the correct answer. It is present in the nucleus and have genetic information.