Biology MCQs

1. Which of the following protects the body against infectious disease and foreign invaders?
[A] Leukocytes
[B] Red blood cells
[C] Endoplasmic reticulum (ER)
[D] Golgi apparatus

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2. Which among the following disease is called by Yersinia pestis?
[A] Leprosy
[B] Anthrax
[C] Plague
[D] Dengue

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3. During the process of Osmosis, the solvent travels from _______ ?
[A] Concentrated solution to dilute solution
[B] Dilute solution to the concentrated solution
[C] Solvent does not travel in osmosis
[D] None of the above

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4. The reverse osmosis is the process of forcing a solvent from a region of high solute concentration through a membrane to a region of low solute concentration by applying a pressure on ________?
[A] Concentrated solution
[B] Dilute solution
[C] Membrane
[D] None of the above

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5. The metals in which among the following groups are required in maximum quantities in a living organism?
[A] Potassium, Manganese, Molybdenum, Calcium
[B] Potassium, Molybdenum, Copper, Calcium
[C] Pottassium,Sodium, Magnesium, Calcium
[D] Sodium, Magnesium, Copper, Manganese

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6. The useful part of Zingiber officinale is ____?
[A] Roots
[B] Rhizome
[C] Leaves
[D] fruits

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7. Pest-resistant cotton commonly known as ‘Bt-Cotton’ is genetically engineered by inserting a gene from a:
[A] Bacterium
[B] Virus
[C] Microalgae
[D] Protist

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8. What do we call the non-green heterotrophic plants of plant kingdom?
[A] Bacteria
[B] Fungi
[C] Archaea
[D] Escherichia coli

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9. Which of the following is the characteristic of water present in coconut?
[A] liquid endocarp
[B] liquid nucellus
[C] liquid mesocarp
[D] degenerated liquid endosperm

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10. Which process develops new species from the existing species?
[A] Homologous
[B] Analogous
[C] Speciation
[D] Genetic variation

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