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Questions and Answers

What property of water allows raindrops to form clusters?

  • Cohesion (correct)
  • Capillarity
  • Surface tension
  • Adhesion
  • What type of bond is most likely formed by a carbon atom?

  • Ionic bond
  • Covalent bond (correct)
  • Metallic bond
  • Hydrogen bond
  • Why is hydrochloric acid considered a strong acid?

  • It does not donate protons
  • It completely dissociates in solution (correct)
  • It partially dissociates in solution
  • It contains only weak bonds
  • Which two functional groups are always found in amino acids?

    <p>Amine and Carboxyl</p> Signup and view all the answers

    How many electrons must one carbon atom share to complete its valence shell?

    <p>4</p> Signup and view all the answers

    What does the molarity of a solution measure?

    <p>Moles of solute per liter of solution</p> Signup and view all the answers

    What products are produced by the hydrolysis of ADP?

    <p>AMP and Pi</p> Signup and view all the answers

    Why are hydrophobic substances like vegetable oil not soluble in water?

    <p>They do not form hydrogen bonds with water</p> Signup and view all the answers

    What characterizes an alcohol functional group?

    <p>Presence of a hydroxyl group</p> Signup and view all the answers

    How many carbon atoms does hexanol have?

    <p>Six</p> Signup and view all the answers

    What is the primary function of the plasma membrane?

    <p>Regulation of material transport</p> Signup and view all the answers

    Which statement describes diffusion?

    <p>Movement of molecules from high to low concentration</p> Signup and view all the answers

    What distinguishes facilitated diffusion from simple diffusion?

    <p>It needs assistance from carrier proteins</p> Signup and view all the answers

    How does glucose primarily cross the plasma membrane?

    <p>Through facilitated diffusion</p> Signup and view all the answers

    What is the role of channel-mediated diffusion?

    <p>To allow ions and small molecules to pass through</p> Signup and view all the answers

    Which process describes the movement of water across a selectively permeable membrane?

    <p>Osmosis</p> Signup and view all the answers

    What is a prokaryote?

    <p>A simple organism lacking a membrane-bound nucleus</p> Signup and view all the answers

    Which of the following is NOT a level of ecological organization?

    <p>Genetic level</p> Signup and view all the answers

    What is the correct order of the steps in the scientific method?

    <p>Observation, Hypothesis, Prediction, Experiment, Results, Conclusions</p> Signup and view all the answers

    In a controlled experiment, what is the purpose of blinding both scientists and individuals?

    <p>To prevent bias in the collection of data</p> Signup and view all the answers

    What is the atomic number of an element?

    <p>The number of protons in the nucleus</p> Signup and view all the answers

    How are neutrons calculated in an atom?

    <p>Atomic mass - protons</p> Signup and view all the answers

    In a triple covalent bond, how many electrons are shared?

    <p>6 electrons</p> Signup and view all the answers

    What type of bond is formed between a hydrogen atom and a non-electronegative atom?

    <p>Non-polar covalent bond</p> Signup and view all the answers

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