The Scientific Method Steps Quiz

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Questions and Answers

Which of the following is the correct order of the scientific method steps?

  • Observation, Questions, Hypothesis, Experiment, Conclusion, Report and Publish (correct)
  • Observation, Questions, Experiment, Hypothesis, Conclusion, Report and Publish
  • Questions, Observation, Hypothesis, Experiment, Conclusion, Report and Publish
  • Observation, Hypothesis, Questions, Experiment, Conclusion, Report and Publish

Which of the following represents a hypothesis?

  • A conclusion
  • An educated guess based on the research (correct)
  • A proven fact
  • An observation

What is the function of control in an experiment?

  • To manipulate the independent variable
  • To introduce new variables
  • To measure the dependent variable
  • To ensure unbiased results (correct)

Which of the following represents a control variable?

<p>The amount of water given to the plants (A)</p> Signup and view all the answers

What is the purpose of a sample size in an experiment?

<p>To increase the accuracy of research findings (B)</p> Signup and view all the answers

Which of the following is a class of organic molecules?

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

What are proteins made up of?

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

What is the second class of organic molecules?

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

What is the first class of organic molecules?

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

What are nucleic acids?

<p>Molecules of the kind normally found in living systems (B)</p> Signup and view all the answers

Which of the following organisms rely on the environment to maintain their body temperature?

<p>Ectotherms (B)</p> Signup and view all the answers

What is the 6th step of the Krebs cycle where succinate is converted to fumarate?

<p>Oxidation (B)</p> Signup and view all the answers

In which part of the cell does the Krebs cycle take place?

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

In which part of the cell does glycolysis take place?

<p>Cytoplasm (B)</p> Signup and view all the answers

What is the function of sodium fluoride?

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

What is the purpose of plant pigments?

<p>Absorb energy from light (C)</p> Signup and view all the answers

Which equation represents cellular respiration?

<p>C6H12O6 + 6O2 —&gt; 6CO2 + 6H2O$ (B)</p> Signup and view all the answers

Which lens should be used for the microscope test?

<p>Yellow lens (10x) (C)</p> Signup and view all the answers

What does paper chromatography technique rely on to separate pigments?

<p>Different solubility and attachment to chromatography paper (D)</p> Signup and view all the answers

Which reagent is used to test for lipids?

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

Which reaction involves the removal of water to bind monomers together to form a polymer?

<p>Dehydration synthesis (B)</p> Signup and view all the answers

Why are both positive and negative controls used in experiments?

<p>To validate experiments (C)</p> Signup and view all the answers

What is the function of the diaphragm in a microscope?

<p>To control the amount of light that reaches the specimen (C)</p> Signup and view all the answers

Why did we use the slide with the letter 'e' and the slide with threads in the microscope?

<p>To illustrate the parts of the microscope (D)</p> Signup and view all the answers

How do you calculate the field of view in a microscope?

<p>FOV = 10x total mag / 4x total mag (C)</p> Signup and view all the answers

What is the equation for total magnification in a microscope?

<p>Total magnification = mag objective x mag ocular lens (A)</p> Signup and view all the answers

What is the difference between prokaryotic and eukaryotic cells?

<p>Eukaryotic cells have a nucleus, while prokaryotic cells do not (D)</p> Signup and view all the answers

What can affect enzyme function?

<p>Temperature, pH, concentration (A)</p> Signup and view all the answers

What is the difference between aerobic respiration and anaerobic respiration?

<p>Aerobic respiration requires the presence of oxygen, while anaerobic respiration does not (D)</p> Signup and view all the answers

Which reagent is used to test for simple carbohydrates?

<p>Benedict's test (A)</p> Signup and view all the answers

Which reagent is used to test for proteins?

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

Which reagent is used to test for starch?

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

Which reagent is used to test for lipids?

<p>Sudan IV (B)</p> Signup and view all the answers

What is the function of the eyepiece on a microscope?

<p>To look through (D)</p> Signup and view all the answers

What is the function of the objective lens on a microscope?

<p>To magnify the specimen (A)</p> Signup and view all the answers

What is the function of the iris diaphragm on a microscope?

<p>To control the amount of light that reaches the specimen (A)</p> Signup and view all the answers

What is the function of the fine focus knob on a microscope?

<p>To focus on the specimen (D)</p> Signup and view all the answers

What is the equation for the field of view in a microscope?

<p>FOV 10x = FOV 4x x total mag 4x (D)</p> Signup and view all the answers

What is the equation for total magnification in a microscope?

<p>Total magnification = mag objective x mag ocular lens (A)</p> Signup and view all the answers

Which of the following represents the correct order of the scientific method steps?

<p>Observation, Questions, Hypothesis, Experiment, Conclusion, Report and Publish (C)</p> Signup and view all the answers

What is the purpose of a control in an experiment?

<p>To ensure unbiased results (B)</p> Signup and view all the answers

Which of the following represents a hypothesis?

<p>An educated guess as to what will happen during an experiment (D)</p> Signup and view all the answers

What is the function of the independent variable in an experiment?

<p>To be manipulated by the experimenter (A)</p> Signup and view all the answers

What is the function of the dependent variable in an experiment?

<p>To be measured as the outcome of the experiment (D)</p> Signup and view all the answers

What is the function of control variables in an experiment?

<p>To provide a baseline for comparison (B)</p> Signup and view all the answers

What is the purpose of a sample size in an experiment?

<p>To increase the statistical power of the study (C)</p> Signup and view all the answers

Which of the following represents the first class of organic molecules?

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

Which of the following represents the second class of organic molecules?

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

Which of the following represents a class of organic molecules?

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

Which of the following is the equation for photosynthesis?

<p>6CO2 + 6H2O → C6H12O6+ 6O (C)</p> Signup and view all the answers

What is the purpose of plant pigments?

<p>Absorbs the energy from the light, controlled photosynthesis (C)</p> Signup and view all the answers

What is the equation for cellular respiration?

<p>C6H12O6 + 6O2 → 6CO2 + 6H2O (B)</p> Signup and view all the answers

What part of the cell does the Krebs cycle take place in?

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

What part of the cell does glycolysis take place in?

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

What does sodium fluoride do?

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

What is the purpose of paper chromatography?

<p>Separates plant pigments from each other (A)</p> Signup and view all the answers

Where does succinate being turned to fumarate occur in the Krebs cycle?

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

What is the purpose of succinate being turned to fumarate in the Krebs cycle?

<p>Regeneration of oxaloacetate (A)</p> Signup and view all the answers

What does sodium fluoride do to glycolysis?

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

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