MCQ Practice Hub

Biology MCQs

Q81. Which molecule is the energy currency of cells?

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Correct: ATP

Adenosine triphosphate (ATP) stores and releases energy.

Q82. What is the study of plants called?

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Correct: Botany

Botany focuses on plant life and structure.

Q83. Which type of symbiosis benefits both organisms?

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Correct: Mutualism

In mutualism, both species gain advantages.

Q84. What is the function of the pancreas?

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Correct: Produces insulin and digestive enzymes

The pancreas regulates blood sugar and aids digestion.

Q85. Which law states that traits are inherited independently?

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Correct: Law of independent assortment

Mendel's law explains assortment of alleles.

Q86. What is the term for a change in DNA sequence?

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Correct: Mutation

Mutations alter genetic code and can lead to variation.

Q87. Which organelle modifies and packages proteins?

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Correct: Golgi apparatus

The Golgi apparatus processes and sorts proteins.

Q88. What is the main function of the skeletal system?

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Correct: Support and protection

Bones provide structure and protect organs.

Q89. Which process recycles carbon in the environment?

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Correct: Carbon cycle

The carbon cycle moves carbon through atmosphere, organisms, and earth.

Q90. What is the term for animals that eat only plants?

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Correct: Herbivores

Herbivores consume plant material for energy.

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