Final Exam Practice Exam

36 Questions | Total Attempts: 137

SettingsSettingsSettings
Final Exam Practice Exam - Quiz

Use this practice final to study for your final exam


Questions and Answers
  • 1. 
           Students wanted to study the effect of water on plant growth. They were given 5 of the same species of plant. They were also given 4 different water solutions. They were given pure water, a sucrose solution (water and sugar mixed together), a sodium solution (water and salt solution), and a vitamin solution (water with a vitamin dissolved in it). Students took measurements of the plants for 5 weeks. The data table below shows their results   Day Plant 1 (pure water) cm Plant 2 (sucrose solution) cm Plant 3 (sodium solution) cm Plant 4 (vitamin solution) cm 1 .17 .14 .09 .13 2 .19 .14 .09 .18 3 .22 .17 .08 .24 4 .25 .18 dead .30 5 .29 .20 dead .35       Analyze the procedure and data from the experiment. In your response, be sure to   ·         Include the hypothesis that the students were most likely investigating ·         Explain whether their data supports this hypothesis ·         Describe how other variables would affect the outcome of the results ·         Explain how the experiment could be redesigned to gather more reliable data      
  • 2. 
    Students are building an exhibit of a food web for a science fair. The food web they are using is shown below Analyze the roles of the organisms and the flow of energy in the food web. In your response, be sure to ·         Identify the role of each organism in the food web ·         Describe the relationship among the organisms in the ecosystem ·         Explain how a pyramid can be used to show the relationship among the organisms in the food web ·         Explain how the organisms in this food web would best fit in a pyramid model  
  • 3. 
    The diagram below displays what happens in the nitrogen cycle. Explain what happens at each step in the cycle. (Be sure to use scientific terminology)
  • 4. 
    Which of these instruments should a student use to measure the amount of an unknown solution of liquid?
    • A. 

      Microscope

    • B. 

      Metric ruler

    • C. 

      Funnel

    • D. 

      Graduated cylinder

  • 5. 
    Students are working with chemicals in the laboratory. They will be heating an unknown substance that emits (gives off) a very strong odor. Which of the following is the proper technique for smelling the substance?
    • A. 

      Place the substance directly under the nose and inhale

    • B. 

      Blow the smoke toward your lab partner’s nose

    • C. 

      Hold the test tube away from your nose and waft the smoke toward you

    • D. 

      Do not smell chemicals in the laboratory

  • 6. 
     Suppose you studied the number of students that received a certain grade on the Ecology exam. What would be the best way to show your results?
    • A. 

      Diagram

    • B. 

      Chart

    • C. 

      Graph

    • D. 

      Flowchart

  • 7. 
    The density of an object equals its mass divided by its volume. Which choice lists the tools that could easily be used to find the density of an igneous rock?
    • A. 

      Graduated cylinder and beaker

    • B. 

      Pan balance and stopwatch

    • C. 

      Spring scale and ruler

    • D. 

      Graduated cylinder and pan balance

  • 8. 
    The independent variable in an experiment is
    • A. 

      The variable that is deliberately changed

    • B. 

      the group that undergoes the testing condition

    • C. 

      The group that does not undergo the testing condition

    • D. 

      The variable that changes in response to the deliberate change

  • 9. 
    The dependent variable in an experiment is
    • A. 

      The variable that is deliberately changed

    • B. 

      The group that undergoes the testing condition

    • C. 

      The group that does not undergo the testing condition

    • D. 

      The variable that changes in response to the deliberate change

  • 10. 
    The relationship between the wolf and the elk is an example of
    • A. 

      Parasitism

    • B. 

      Mutualism

    • C. 

      Commensalism

    • D. 

      Predator-Prey

  • 11. 
     When the rodent population decreases, which of these populations is affected?
    • A. 

      Bear

    • B. 

      Fox

    • C. 

      Birds

    • D. 

      Trees

  • 12. 
    In the water cycle, water that collects in the atmosphere to form clouds is called
    • A. 

      Evaporation

    • B. 

      Precipitation

    • C. 

      Condensation

    • D. 

      Transpiration

  • 13. 
    Which of the following activities is a direct result of deforestation?
    • A. 

      An incease in the amount of carbon dioxide in the air leading to global warming

    • B. 

      A decrease in the amount of available oxygen

    • C. 

      An increase in the available spece for organisms to live

    • D. 

      Deforestation has no effect on the ecosystem

  • 14. 
    All of the following activities help preserve the biosphere except
    • A. 

      Alternative energy sources

    • B. 

      Proper removal anad disposal of chemicals

    • C. 

      Burning fossil fuels

    • D. 

      Recycling

  • 15. 
    Amino acids are the building blocks of what macromolecule?
    • A. 

      Carbohydrates

    • B. 

      Lipids

    • C. 

      Proteins

    • D. 

      Nucleic acids

  • 16. 
    Enzymes play and important role in which of the following
    • A. 

      Photosynthesis

    • B. 

      Cellular Respiration

    • C. 

      Osmosis

    • D. 

      Homeostasis

  • 17. 
    Which of the following macromolecules is matched with its correct function?
    • A. 

      Carbohydrates - energy storage

    • B. 

      Nucleic acids - regulation of cell processes

    • C. 

      Lipids - energy storage

    • D. 

      Proteins - transfer of genetic information

  • 18. 
    The tiny hair like projection shown in the picture below line the trachea and lungs of humans. These structures are known as
    • A. 

      Flagella

    • B. 

      Cilia

    • C. 

      Mitochondria

    • D. 

      Chloroplasts

  • 19. 
    The Egyptian Plover is a bird that participates in a symbiotic relationship with the Nile Crocodile. The crocodile opens its mouth and allows the bird to feed on any leeches that may be stuck to its gums. This type of relationship is an example of
    • A. 

      Parasitism

    • B. 

      Mutualism

    • C. 

      Commensalism

    • D. 

      Predator - prey

  • 20. 
    Sodium and potassium are two elements used by the cell to regulate various cell processes. They are pumped in and out of the cell by proteins pumps and channels embedded in the cell membrane. This is an example of what process?
    • A. 

      Osmosis

    • B. 

      Diffusion

    • C. 

      Cellular Respiration

    • D. 

      Homeostasis

  • 21. 
    The remora is a fish that travels with along with the shark as it swims through the ocean. The dorsal fin of the remora has a "sucker" on the end which attaches the the shark and as the shark feeds, the remora eats the scraps. No harm comes to the shark from the attachment. This is an example of what type of relationship?
    • A. 

      Parasitism

    • B. 

      Mutualism

    • C. 

      Commensalism

    • D. 

      Competition

  • 22. 
    All of the following are true about prokaryotic cells except
    • A. 

      Prokaryotc cells do not contain a nucleus

    • B. 

      Prokaryotic cells cannot be animal or plant cells

    • C. 

      Prokaryotic cells are always multi-cellular organisms

    • D. 

      The DNA of prokaryotic cells are located all throughout the cell

  • 23. 
    Which of the following statements is true about enzymes?
    • A. 

      Enzymes must operate at an optimal temperature. Temperatures that are too high or too low will cause the enzyme to degrade.

    • B. 

      Enzymes must operate at an optimal pH. A pH too high or too low will cause the enzyme to denature.

    • C. 

      Enzymes operate at an optimal concentration. A concentration that is too high will cause the reaction to level off; too low will cause the enzyme to move slowly.

    • D. 

      All of the above statements about enzymes are true

  • 24. 
    The following picture of a DNA molecule shows what process taking place?
    • A. 

      DNA replication

    • B. 

      Transcription

    • C. 

      Translation

    • D. 

      Protein Synthesis

  • 25. 
    This type of RNA carries coded messages to the ribosomes for protein synthesis
    • A. 

      MRNA

    • B. 

      TRNA

    • C. 

      RRNA

    • D. 

      None of the above

Back to Top Back to top