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MDCAT preparation with Abdul Rehman Rahoo

Created on 7th March 2025

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Grade level: Grade 12th grade

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14 Questions

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Questions (14)

1. What is a monomer?

A single unit that can join to form a polymer.

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2. Which of the following statements describes polymers?

They are large molecules made of many repeating monomers.

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3. What is the process of dehydration synthesis?

The synthesis of complex molecules by removing water.

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4. Hydrolysis is important for which of the following?

Breaking down complex molecules into simpler ones.

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5. Why is water important in cells?

It acts as a solvent and participates in biochemical reactions.

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6. What does thermal stability refer to?

The ability of a substance to remain stable at varying temperatures.

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7. Thermoregulation is essential for which of the following?

Regulating temperature within an organism.

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8. What is the function of a buffer in biological systems?

To stabilize pH levels in biological fluids.

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9. Hydrogen bonding is primarily responsible for which property of water?

Its high heat capacity.

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10. What is the significance of dipole moments in water molecules?

They contribute to water's polarity and ability to form hydrogen bonds.

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11. Cohesive forces in water are responsible for which phenomenon?

Surface tension in water.

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12. Adhesive forces in water contribute to which of the following?

Water moving through capillary tubes.

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13. What role do hydrogen bonds play in the structure of proteins?

They help maintain the secondary and tertiary structures of proteins.

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14. What type of polymer is cellulose?

A polysaccharide made of glucose monomers.

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