Biology Unit 7 Test

21 Questions | Total Attempts: 96

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Biology Unit 7 Test


Questions and Answers
  • 1. 
    Which of these cells is a prokaryotic cell?
    • A. 

      Plant cell

    • B. 

      Animal cell

    • C. 

      Bacteria

    • D. 

      Fungi

  • 2. 
    Eukaryotic cells don't have membrane bound organelles.
    • A. 

      True

    • B. 

      False

  • 3. 
    Which of these organelles is not found in a prokaryotic cell?
    • A. 

      Ribosomes

    • B. 

      Cytoplasm

    • C. 

      DNA

    • D. 

      Membrane bound nucleus

  • 4. 
    Which of these organelles is responsible for attaching bacteria to surfaces? 
    • A. 

      Flagella

    • B. 

      Cilia

    • C. 

      Ribosome

    • D. 

      Fimbriae

  • 5. 
    Functions of bound ribosomes include:
    • A. 

      Cytosol storage

    • B. 

      Secretion of products

    • C. 

      Adding to the membrane (membrane factory)

    • D. 

      Two of the above

  • 6. 
    The endomembrane system contains all of these organelles EXCEPT:
    • A. 

      Lysosomes

    • B. 

      Proteins

    • C. 

      Endoplasmic reticulum (ER)

    • D. 

      Golgi Apparatus

  • 7. 
    The functions of the smooth endoplasmic reticulum (SER) include all of these options EXCEPT
    • A. 

      Synthesis of lipids

    • B. 

      Storage of calcium ions

    • C. 

      Detoxification of drugs

    • D. 

      Metabolism of carbohydrates

    • E. 

      None of the above

  • 8. 
    Golgi Apparatus is made up of membranous sacs called crinsta
    • A. 

      True

    • B. 

      False

  • 9. 
    In plants: Pigments, toxic compounds, organic and inorganic compounds and hydrolytic enzymes as well as water are stored in
    • A. 

      Golgi apparatus

    • B. 

      Intracellular membrane

    • C. 

      Central Vacuole

    • D. 

      Food vacuole

  • 10. 
    Peroxisomes have 2 types of enzymes, the first type break down organic molecules such as fats and fatty acids releasing H2O2, what does the second type of enzymes do?
    • A. 

      Detoxification by breaking down H2O2 into H2O and O

    • B. 

      Hydrolisation

    • C. 

      Detoxification by breaking down the H2O2 into H2O and O2

    • D. 

      There isnt another type of enzymes in peroxisomes

  • 11. 
    Tay-saches patients have lysosomes that lack the enzymes that can digest proteins., so they accumulate in brain cells, causing brain damage.
    • A. 

      True

    • B. 

      False

  • 12. 
    All of these are membranous organelles that arent found in prokaryotic cells and arent part of the endomembrane system except
    • A. 

      Peroxisomes

    • B. 

      Chloroplasts

    • C. 

      Mitochondria

    • D. 

      Ribosomes

  • 13. 
    The cytoskeleton is made up of microfilaments, microtubules and .............. microfilaments. fill in the space by selecting the suitable word.
    • A. 

      Mediated

    • B. 

      Intermediate

    • C. 

      Tubulin dimer

    • D. 

      Spindle

  • 14. 
    Mitochondria and chloroplasts are similar in the way of that they both are membrane bound organelles and they both work on converting energy.
    • A. 

      True

    • B. 

      False

  • 15. 
    Cilia and flagella 's microtubular arrangement is
    • A. 

      9 + 2

    • B. 

      9 + 3

    • C. 

      9 + 0

    • D. 

      9 + 1

  • 16. 
    .................... is a network of glycoprotein molecules attached to the outer surface of the animal cell's plasma membrane.
    • A. 

      Ribosome

    • B. 

      Intercellular golgi

    • C. 

      Extracellular matrix

    • D. 

      Entracellular matrix

  • 17. 
    In the plasma membrane, signals are sent to the cytoskeleton through the protein called ............ and the cell works on a suitable response accordingly.
    • A. 

      Glycerin

    • B. 

      Ribose

    • C. 

      Dyosine

    • D. 

      Integrin

  • 18. 
    FUNCTIONS of the Extracellular matrix (ECM) include all of those stated below except
    • A. 

      Cell communication

    • B. 

      Regulation of cell behaviour via a protein

    • C. 

      Cell motility

    • D. 

      Cell recognition

  • 19. 
    The 3 Glycoproteins that make up the extracellular matrix are fibronectin, proteoglycan and the most abundant one is ..............
    • A. 

      Fibers

    • B. 

      Collagen

    • C. 

      Glucose

    • D. 

      Galactose

  • 20. 
    Protein pores in cell wall of adjacent plant cells are called
    • A. 

      Gap junctions

    • B. 

      Desmosomes

    • C. 

      Tight junctions

    • D. 

      Plasmodesmata

  • 21. 
    Desmosomes are junctions that hold cells into strong sheets and DONT allow space between them
    • A. 

      True

    • B. 

      False

  • 22. 
    1-Laughter!     2-Food!!     3-A 10 min walk.     4-Breathe deeply and/or pray/meditate  
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