Biology MCAT

20 Questions | Total Attempts: 111

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MCAT Quizzes & Trivia

Questions and Answers
  • 1. 
    As a general rule, all cells are ___ in size in order to maintain a ___ surface area-to-volume ratio. Having a ___ surface area relative to a ___ volume allows cells to perform vital functions at a reasonably ___ rate, which is necessary for survival. Cells that are too ___ have ___ surface area-to-volume ratios and have difficulties getting the nutrients they need and expelling wastes in a timely manner.
  • 2. 
    Most cells take in glucose by ____ ____. 
  • 3. 
    Components of the Cell Theory: 
    • A. 

      All living things are composed of cells

    • B. 

      All living things contain mitochondria

    • C. 

      Cooperation among cells allows for complex functioning in living things

    • D. 

      All cells arise from pre-existing cells

  • 4. 
    This technique utilizes radioactive molecules to trace and identify cell structures and biochemical activity. 
  • 5. 
    Prokaryotic ribosome subunits = 
    • A. 

      30S

    • B. 

      40S

    • C. 

      50S

    • D. 

      60S

  • 6. 
    Eukaryotic ribosome subunits = 
    • A. 

      30S

    • B. 

      40S

    • C. 

      50S

    • D. 

      60S

  • 7. 
    Pertains to prokaryotic cells
    • A. 

      Bacteria

    • B. 

      Fungi

    • C. 

      Plants

    • D. 

      Cyanobacteria

    • E. 

      Animals

    • F. 

      Membrane bound organelles

    • G. 

      Cell wall

    • H. 

      Cell membrane

    • I. 

      Ribosomes

    • J. 

      Nucleus

    • K. 

      Circular DNA

    • L. 

      Linear DNA

    • M. 

      Cytoplasm

    • N. 

      Flagella & cilia (sometimes)

    • O. 

      Protista

    • P. 

      Binary fission

    • Q. 

      Cellulose

    • R. 

      Peptidoglycan

    • S. 

      Chitin

    • T. 

      Mitochondria

    • U. 

      Chloroplasts

    • V. 

      Central vacuole

  • 8. 
    Pertains to eukaryotic cells (ignore differences among eukaryotic cells for now... just include all here)
    • A. 

      Bacteria

    • B. 

      Fungi

    • C. 

      Plants

    • D. 

      Cyanobacteria

    • E. 

      Animals

    • F. 

      Membrane bound organelles

    • G. 

      Cell membrane

    • H. 

      Ribosomes

    • I. 

      Nucleus

    • J. 

      Circular DNA

    • K. 

      Linear DNA

    • L. 

      Cytoplasm

    • M. 

      Flagella & cilia (sometimes)

    • N. 

      Protista

    • O. 

      Binary fission

    • P. 

      Cellulose

    • Q. 

      Chitin

    • R. 

      Peptidoglycan

    • S. 

      Pili

    • T. 

      Centrioles

    • U. 

      Central vacuole

    • V. 

      Cell junctions

    • W. 

      Mitochondria

    • X. 

      Chloroplasts

  • 9. 
    Pertains to eukaryotic plant cells
    • A. 

      Membrane bound organelles

    • B. 

      Ribosomes

    • C. 

      Cytoplasm

    • D. 

      Linear DNA

    • E. 

      Binary fission

    • F. 

      Central vacuole

    • G. 

      Smaller vacuoles

    • H. 

      Lysosomes

    • I. 

      Mitochondria

    • J. 

      Chloroplasts

    • K. 

      Cellulose

    • L. 

      Chitin

    • M. 

      Peptidoglycan

    • N. 

      Tight junctions

    • O. 

      Desmosomes

    • P. 

      Plasmodesmata

    • Q. 

      Cell wall

    • R. 

      Cell membrane

  • 10. 
    Pertains to eukaryotic animal cells
    • A. 

      Mitochondria

    • B. 

      Membrane bound organelles

    • C. 

      Cell membrane

    • D. 

      Binary fission

    • E. 

      Central vacuole

    • F. 

      Smaller vacuoles

    • G. 

      Chitin

    • H. 

      Peptidoglycan

    • I. 

      Pili

    • J. 

      Plasmodesmata

    • K. 

      Tight junctions

    • L. 

      Gap junctions

    • M. 

      Desmosomes

    • N. 

      Lysosomes

    • O. 

      Cell wall

    • P. 

      Flagella & cilia (sometimes)

  • 11. 
     Urinary System
    • A. 

      Produces urine as a means of eliminating nitrogenous cellular waste products

    • B. 

      Regulates blood pressure by adjusting blood volume

    • C. 

      Adjusts blood pH

    • D. 

      Regulates osmotic concentrations of the blood

  • 12. 
    What muscles can use as an energy source:
    • A. 

      Glucose

    • B. 

      Lipids

    • C. 

      Proteins

  • 13. 
    What the brain can use an energy source:
    • A. 

      Glucose

    • B. 

      Lipids

    • C. 

      Protein

  • 14. 
    Disaccharides:
    • A. 

      Sucrose

    • B. 

      Lactose

    • C. 

      Glucose

    • D. 

      Galactose

    • E. 

      Starch

    • F. 

      Cellulose

    • G. 

      Chitin

    • H. 

      Fructose

  • 15. 
    Animals cannot digest:
    • A. 

      Cellulose

    • B. 

      Starch

    • C. 

      Chitin

  • 16. 
    Monosaccharides:
    • A. 

      Sucrose

    • B. 

      Lactose

    • C. 

      Glucose

    • D. 

      Galactose

    • E. 

      Starch

    • F. 

      Cellulose

    • G. 

      Chitin

    • H. 

      Fructose

  • 17. 
    Some enzymes require assistance from other substances to work properly. If assistance is needed, the enzyme has binding sites for cofactors or coenzymes. ___ are various types of ions such as iron and zinc (Fe2+and Zn2+). ____ are organic molecules usually derived from vitamins obtained in the diet. For this reason, mineral and vitamin deficiencies can have serious consequences on enzymatic functions. Coenzymes vs. Cofactors