Unity of Life – MDCAT Biology Chap 2 – Level 1

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Unity of Life - Level 1

Chapter 2 - MDCAT Biology - Test Preparation MCQs

Read these MCQs of Unity of Life MDCAT Chapter 2 and start the online test.

  1. Chemically, protoplasm contains: 70-90 % of H2O
  2. If water is evaporated, the remaining dry weight of the cell consists of: Carbon
  3. During photosynthesis, ________ is used as reducing agent: Hydrogen
  4. Regarding chemical composition of cells, combination is correct? Protein ...... 18%
  5. Regarding nucleic acid composition (in%) of cell: RNA is more than DNA
  6. Percentage of elements by weight in human body (In descending order): Carbon → Hydrogen → Oxygen → Nitrogen
  7. Regarding water molecule: It acts as both an acid and a base
  8. Regarding buffer: It helps to prevent changes in pH
  9. Huge and highly organized molecules that form the structure & carry out activities are called: Macromolecules
  10. The joining of two monomers is called: Condensation

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1. Regarding chemical composition of cells, which combination is correct?

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2. Percentage of elements by weight in human body (In descending order):

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3. Regarding water molecule:

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4. If water is evaporated, the remaining dry weight of the cell consists of:

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5. Chemically, protoplasm contains:

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6. Regarding nucleic acid composition (in%) of cell:

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7. The joining of two monomers is called:

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8. Huge and highly organized molecules that form the structure & carry out activities are called:

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9. During photosynthesis, which one is used as reducing agent:

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10. Regarding buffer:

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