Independent and Dependent Variables in Experiments
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Questions and Answers

What is the function of the cell membrane?

  • Makes and folds proteins
  • Stores DNA
  • Acts as a control center of the cell
  • Serves as a semi-permeable barrier around the cell (correct)

    • Which organelle is responsible for making and folding proteins?

  • Cytoplasm
  • Cell Membrane
  • Nucleus
  • Ribosomes (correct)

    • What distinguishes prokaryotic cells from eukaryotic cells?

  • Absence of DNA
  • Complexity of organelles
  • Presence of a nucleus (correct)
  • Lack of a cell membrane

    • Where is DNA stored in prokaryotic cells?

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

    What term is used to refer to a predicted answer to a problem, also known as an 'educated guess'?

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

    What is the primary function of the nucleus in a cell?

    <p>Store DNA</p> Signup and view all the answers

    Which phase of the scientific method involves setting up a test or procedure to determine if the hypothesis is correct?

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

    Why do prokaryotic cells have fewer compartments compared to eukaryotic cells?

    <p>To ensure most cell processes occur in the cytoplasm</p> Signup and view all the answers

    What aspect of the experiment must be controlled to ensure accurate results?

    <p>Constant factors</p> Signup and view all the answers

    Which part of the scientific method involves recording and analyzing what occurred during the experiment?

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

    In the scientific method, what is the name given to all other factors that need to be controlled during an experiment?

    <p>Constant factors</p> Signup and view all the answers

    What is the term for reviewing the data collected and verifying if the hypothesis was correct in the scientific method?

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

    What is the main difference between fragmentation and budding?

    <p>Fragmentation involves the development of a new organism attached to the parent, whereas budding involves the detached offspring growing independently.</p> Signup and view all the answers

    Which cellular organelle is primarily responsible for cellular respiration?

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

    What process occurs in the cytoplasm outside of the mitochondria during cellular respiration?

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

    What is the end product when glucose undergoes cellular respiration?

    <p>Carbon Dioxide, Water, and Adenosine Tri-Phosphate</p> Signup and view all the answers

    How does a new organism develop in vegetative reproduction?

    <p>Through a long, slim shoot extending from a plant</p> Signup and view all the answers

    What role does the Citric Acid Cycle (Kreb Cycle) play in cellular respiration?

    <p>It is where energy is added to molecules</p> Signup and view all the answers

    Which variable in an experiment is 'dependent' on the independent variable?

    <p>Dependent variable</p> Signup and view all the answers

    In an experiment measuring the relationship between sleep and tiredness, what is the independent variable?

    <p>Amount of sleep</p> Signup and view all the answers

    What distinguishes a 'Theory' from a 'Fact'?

    <p>Theories are subject to change with new information, while facts are universally agreed upon</p> Signup and view all the answers

    What is the primary characteristic of conspiracy theorists according to the text?

    <p>They believe in the power held by certain groups over them</p> Signup and view all the answers

    Which term describes a collection of facts related to a specific hypothesis?

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

    How are theories described in relation to testing and new information?

    <p>Theories are major hypotheses that can evolve with new information</p> Signup and view all the answers

    How many ATP molecules are consumed during the 'investment phase' of cellular respiration?

    <p>2 ATP</p> Signup and view all the answers

    Where do the preparatory reactions of cellular respiration occur?

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

    How many NADH molecules are generated in the Citric Acid Cycle per glucose molecule entering cellular respiration at glycolysis?

    <p>8 NADH</p> Signup and view all the answers

    What is the total range of ATP molecules yielded through cellular respiration?

    <p>36 to 38 ATP</p> Signup and view all the answers

    How many molecules of ATP are produced in the Electron Transport Chain (ETC) step of cellular respiration?

    <p>32 to 34 ATP</p> Signup and view all the answers

    What is the final electron acceptor in the Electron Transport Chain (ETC)?

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

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