Atomic Structure and Periodic Table Quiz
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Questions and Answers

What is the primary function of lipids in the body?

  • Aid in cellular mobility
  • Act as the first source of energy (correct)
  • Provide structural support
  • Serve as enzymes

Which characteristic distinguishes a saturated fat from an unsaturated fat?

  • Solid at room temperature
  • Compact molecular structure
  • Liquid at room temperature (correct)
  • Contains maximum hydrogen atoms

What is the building block of nucleic acids?

  • Triglyceride
  • Monosaccharide
  • Nucleotide (correct)
  • Amino acid

How many different amino acids are there, and how many of them are considered essential?

<p>20 / 8 (A)</p> Signup and view all the answers

What is the key characteristic that defines a molecule as a lipid?

<p>Does not dissolve in water (D)</p> Signup and view all the answers

Which macromolecule is responsible for cellular mobility and contractility?

<p>Protein (A)</p> Signup and view all the answers

If an atom gains an electron, what is the resulting charge?

<p>Negative (D)</p> Signup and view all the answers

Which element is the most abundant in living things?

<p>Hydrogen (C)</p> Signup and view all the answers

How many protons are in an atom with atomic number 17?

<p>17 (A)</p> Signup and view all the answers

Which type of bond involves the sharing of electrons?

<p>Covalent (D)</p> Signup and view all the answers

What is the pH of a solution with a high concentration of hydrogen ions?

<p>1 (C)</p> Signup and view all the answers

Which characteristic of water allows it to stick to other substances?

<p>Adhesiveness (A)</p> Signup and view all the answers

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