Biology Toughest Practice Quiz: Test!

200 Questions | Total Attempts: 38

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Biology Toughest Practice Quiz: Test!

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Questions and Answers
  • 1. 
    Organic compounds contain 
    • A. 

      Carbon and usually other elements

    • B. 

      Many kinds of elements except carbon

    • C. 

      Only carbon

    • D. 

      Only carbon and nitrogen

  • 2. 
    The number of covalent bonds a carbon atom can form with other atoms is 
    • A. 

      8

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 3. 
    The breakdown of polymers involve 
    • A. 

      Hydrolysis

    • B. 

      Condensation

    • C. 

      Polar reactions

    • D. 

      Hydrophobic interactions

  • 4. 
    Carbohydrates 
    • A. 

      Contain only Carbon and Hydrogen

    • B. 

      Contain only Carbon and Oxygen

    • C. 

      Contain Carbon Hydrogen and Oxygen in a 1:2:1 ratio

    • D. 

      Contain Carbon Hydrogen and Nitrogen in a 1:2:1 ratio

  • 5. 
    Lipids 
    • A. 

      Contain only Carbon and Hydrogen

    • B. 

      Contain only Carbon and Oxygen

    • C. 

      Contain only Carbon Hydrogen and Oxygen

    • D. 

      Contain only Carbon Hydrogen Oxygen and Nitrogen

  • 6. 
    All the following are lipids except 
    • A. 

      Fatty Acids

    • B. 

      Phospholipids

    • C. 

      Olive Oil

    • D. 

      Maltose

  • 7. 
    All the following are carbohydrates EXCEPT 
    • A. 

      Glucose

    • B. 

      Cellulose

    • C. 

      Dextrose

    • D. 

      Catalase

  • 8. 
    Foods that contain mostly carbohydrates include all the following EXCEPT 
    • A. 

      Potatoes

    • B. 

      Gummy Bears

    • C. 

      Pasta

    • D. 

      Steak

  • 9. 
    Examples of monomers include all the following expect 
    • A. 

      Monosaccharides

    • B. 

      Disaccharides

    • C. 

      Amino acids

    • D. 

      Glucose

  • 10. 
    Hookes's discovery of cells was made by observing  
    • A. 

      Living algal cells

    • B. 

      Living human blood cells

    • C. 

      Dead plant cells

    • D. 

      Dead protist cells

  • 11. 
    The smallest units of life in all living things are 
    • A. 

      Cells

    • B. 

      Mitochondria

    • C. 

      Cytoplasm

    • D. 

      Golgi apparatus

  • 12. 
    When the volume of a cell increases, its surface ares
    • A. 

      Increases at the same rate

    • B. 

      Remains the same

    • C. 

      Increases at a faster rate

    • D. 

      Increases at a slower rate

  • 13. 
    The size to which a cell can grow is limited by its 
    • A. 

      Location

    • B. 

      Structure

    • C. 

      Function

    • D. 

      Surface area

  • 14. 
    Surface area is an important factor in limiting cell growth because 
    • A. 

      The cell can burst if the membrane becomes to large

    • B. 

      Materials cannot enter the if the surface is too large

    • C. 

      The cell may become too large to take in enough food and to remove enough waste

    • D. 

      Waste products cannot leave the cell if the cell is too small

  • 15. 
    One difference between prokaryotes and eukarotes is that 
    • A. 

      Nucleic acids are found in only prokaryotes

    • B. 

      Mitochondria are found in larger quantities in eukaryotes

    • C. 

      The Golgi apparatus is found only in prokaryotes

    • D. 

      Prokaryotes have no nucleic membrane

  • 16. 
    Which of the following is a characteristic of prokaryotes? 
    • A. 

      They have a nucleus

    • B. 

      They existed on Earth before eukaryotes

    • C. 

      They organelles in their cytoplasm are surrounded by membranes

    • D. 

      None of the above

  • 17. 
    Which of the following is an example of a prokaryotic cell? 
    • A. 

      An amoeba

    • B. 

      A virus

    • C. 

      A bacterium

    • D. 

      A liver cell

  • 18. 
    Studying a picture of a cell taken within an electron microscope, you find that the cell has no nucleus and no mitochondria, but it does have a plasma membrane and a cell awl. You can conclude that the cell is probably a(n)
    • A. 

      Animal

    • B. 

      Plant

    • C. 

      Prokaryote

    • D. 

      Extinct organism

  • 19. 
    Diffusion takes place 
    • A. 

      Only through a lipid bilayer

    • B. 

      From an area of low concentration to an area of high concentration

    • C. 

      Only in liquids

    • D. 

      From an area of high concentration to an area of low concentration

  • 20. 
    The dispersal of ink in a beaker of water is an example of 
    • A. 

      Diffusion

    • B. 

      Osmosis

    • C. 

      Selective transport

    • D. 

      Endocytosis

  • 21. 
    As a result of diffusion, the concentration of many types of substances 
    • A. 

      Always remains greater inside a membrane

    • B. 

      Eventually becomes balanced on both sides of a membrane

    • C. 

      Always remains greater on the outside of a membrane

    • D. 

      Becomes unbalanced on both sides of the membrane

  • 22. 
    Molecules that can simple diffuse through the cell membrane (pass throng the lipid bilayer) are typically 
    • A. 

      Large and in charge

    • B. 

      Small and polar

    • C. 

      Ionic

    • D. 

      Non-olar

  • 23. 
    When tow solutions in different concentrations are separated by a membrane, there is a difference in concentration across the space. This is known as a 
    • A. 

      Concentration difference

    • B. 

      Concentration gradient

    • C. 

      Soulte differential

    • D. 

      Water differential

  • 24. 
    Autotrophs are organisms that can 
    • A. 

      Produce food from inorganic molecules and sunlight

    • B. 

      Survive without energy

    • C. 

      Consume other organisms for energy

    • D. 

      Carry out aerobic respiration

  • 25. 
    The process whereby plants capture energy and make complex molecules is known as 
    • A. 

      Homeostasis

    • B. 

      Evolution

    • C. 

      Photosynthesis

    • D. 

      Development

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