Biology MCQs

11. What was “Albert Szent-Gyorgyi” famous for?
[A] As a Hungarian biochemist
[B] As a Hungarian physicist
[C] As a Hungarian mathematician
[D] As a Hungarian novelist

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12. Phaeophyceae is commonly known as which of the following algae?
[A] Green Algae
[B] Brown Algae
[C] Red Algae
[D] Blue Algae

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13. Which is known as mitoplast?
[A] another name for mitochondria
[B] mitochondria without outer membrane
[C] mitochondria without inner membrane
[D] mitochondria without membranes

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14. Name the signal that helps the protein to move in or out of the nucleus?
[A] Notch signal
[B] Paracrine signal
[C] Nuclear localization signal
[D] Chemical signals

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15. What is the approximate number of specific cells in the human body?
[A] 200 types
[B] 300 types
[C] 250 types
[D] 150 types

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16. Viruses are usually divided into several large groups based mainly on?
[A] nature of the host
[B] nucleic acid characteristics
[C] capsid symmetry
[D] diameter of the viroin or nucleocapsid

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17. A protein that binds to operators or stoperators within prophage to prevent transcription of lytic genes is called__?
[A] immunity repressor
[B] immunity operon
[C] operon repressor
[D] None of these

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18. What is an evolutionary important character of Selaginella?
[A] Strobili
[B] Rhizophore
[C] Heterosporous nature
[D] Ligule

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19. Which of the following is true about the cell wall of Gram-positive bacteria?
[A] It consists of multiple layers
[B] It is thicker than that associated with gram-negative bacteria
[C] It contains teichoic acids
[D] All of these

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20. Fungi that get their food directly from dead organic matter are called?
[A] Predators
[B] Decomposers
[C] Mutualists
[D] Parasitic fungi

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