Test You Knowledge On Bio Science With This Quiz!

46 Questions | Total Attempts: 492

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Test You Knowledge On Bio Science With This Quiz!

Science is perhaps the greatest study in human history, providing us with answers to the endless questions like “why”, “how” and “what” that we may ask about the universe around us. In the following quiz, we’ll be focusing our microscopes in on the scientific study of life – biology! Think you can talk to us about bio science without getting a question wrong? Let’s see if you’re right!


Questions and Answers
  • 1. 
    About 90% of neurons in the nervous system are          neurons
    • A. 

      Motor

    • B. 

      Afferent

    • C. 

      Efferent

    • D. 

      Association

    • E. 

      Sensory

  • 2. 
    The autonomic nervous system is also called the
    • A. 

      Central nervous system

    • B. 

      Somatic sensory division

    • C. 

      Somatic motor division

    • D. 

      Visceral motor division

    • E. 

      Visceral sensory division

  • 3. 
                  division carries signals to the smooth muscle in the large intestine.
    • A. 

      Visceral motor

    • B. 

      Afferent

    • C. 

      Somatic motor

    • D. 

      Somatic sensory

    • E. 

      Visceral sensory

  • 4. 
    Nerve fibers refers to
    • A. 

      A nerve cell

    • B. 

      An axon

    • C. 

      An organ

    • D. 

      A bundle of macromolecules in nerve cells

    • E. 

      An organelle in nerve cells

  • 5. 
    Some            neurons are specialized to detect stimuli, whereas       neurons send signals to the effectors of the nervous system.
    • A. 

      Efferent; afferent

    • B. 

      Motor; sensory

    • C. 

      Afferent; efferent

    • D. 

      Afferent; association

    • E. 

      Efferent; association

  • 6. 
          form myelin in the spinal cord
    • A. 

      Oligodendrocytes

    • B. 

      Satellite cells

    • C. 

      Microglia

    • D. 

      Astrocytes

    • E. 

      Schwann cells

  • 7. 
    Nerves are         of the nervous system
    • A. 

      Cells

    • B. 

      Organs

    • C. 

      Organelles

    • D. 

      Tissues

    • E. 

      Organ systems

  • 8. 
    Most metabolic and regulatory functions in a neuron happen at the
    • A. 

      Axon

    • B. 

      Dendrites

    • C. 

      Schawnn cell

    • D. 

      Soma

    • E. 

      Axon hillock

  • 9. 
               neurons are the most common type of neurons
    • A. 

      Bipolar

    • B. 

      Multipolar

    • C. 

      Anaxonic

    • D. 

      Dendritic

    • E. 

      Unipolar

  • 10. 
                are the primary site for receiving signals from other neurons
    • A. 

      Synaptic knobs

    • B. 

      Somas

    • C. 

      Dendrites

    • D. 

      Axons

    • E. 

      Axon collateral

  • 11. 
                are examples of effectors in the nervous system.
    • A. 

      Glands

    • B. 

      Stimuli

    • C. 

      Reflexes

    • D. 

      Sense organs

    • E. 

      Receptor

  • 12. 
    The myelin sheath is formed by
    • A. 

      Organelles

    • B. 

      Polymers

    • C. 

      Cells

    • D. 

      Macromolecules

    • E. 

      Fibers

  • 13. 
    Opening of sodium gates typically leads to
    • A. 

      Plasma membrane voltage returning to the resting membrane potential

    • B. 

      Drifting of plasma membrane voltage toward a more negative value

    • C. 

      Depolarization of the plasma membrane

    • D. 

      Hyperpolarization of the plasma membrane

    • E. 

      Repolarization of the plasma membrane

  • 14. 
    The            division tends to prepare the body for action.
    • A. 

      Parasympathetic

    • B. 

      Motor afferent

    • C. 

      Sympathetic

    • D. 

      Sensory afferent

    • E. 

      Somatic motor

  • 15. 
    Conduction speed of a nerve fiber would be fastest in a
    • A. 

      Small myelinated fiber

    • B. 

      Large myelinated fiber

    • C. 

      Small fiber with multiple schwann cells

    • D. 

      Small unmyelinated fiber

    • E. 

      Large unmyelinated fiber

  • 16. 
    Most of the myelin sheath is composed of
    • A. 

      Lipids

    • B. 

      Carbohydrates

    • C. 

      Glycoproteins

    • D. 

      Proteins

    • E. 

      Polysaccharides

  • 17. 
    Local potentials are         , meaning they vary in magnitude according to the strength of the stimulus
    • A. 

      Reversible

    • B. 

      Decremental

    • C. 

      Graded

    • D. 

      Excitatory

    • E. 

      Inhibitory

  • 18. 
                 has the greatest influence on the resting membrane potential
    • A. 

      Potassium

    • B. 

      Phosphate

    • C. 

      Calcium

    • D. 

      Sodium

    • E. 

      Chloride

  • 19. 
    Most local potentials happen at the
    • A. 

      Somas

    • B. 

      Dendrites

    • C. 

      Schwann cells

    • D. 

      Trigger zone

    • E. 

      Axon hillock

  • 20. 
    During hyperpolarization ( or afterpotential)
    • A. 

      Sodium ions are entering the cells

    • B. 

      Sodium ion are leaving the cell

    • C. 

      Potassium ions are entering the cell

    • D. 

      Potassium ions are leaving the cell

    • E. 

      Both sodium and potassium are leaving the cell

  • 21. 
    When the voltage of a plasma membrane shifts from +35mV towards 0 mV, we say the cell is
    • A. 

      Depolarizing

    • B. 

      Repolarizing

    • C. 

      Hyperpolarizing

    • D. 

      Reaching the threshold

    • E. 

      Exiting the threshold

  • 22. 
    While the membrane is depolarizing its
    • A. 

      Potassium gates are fully open

    • B. 

      Chloride gates are partially open

    • C. 

      Chloride gates are fully open

    • D. 

      Sodium gates are fully open

    • E. 

      Sodium gates are partially open

  • 23. 
    Which of the following will cause the plasma membrane to hyperpolarize when at its RMP?
    • A. 

      Inflow of sodium

    • B. 

      Inflow of patassium

    • C. 

      Inflow of calcium

    • D. 

      Inflow of chloride

    • E. 

      Outflow of chloride

  • 24. 
    An inhibitory local potential
    • A. 

      Depolarizes the plasma membrane

    • B. 

      Repolarizes the plasma membrane

    • C. 

      Hyperpolarizes the plasma membrane

    • D. 

      Drifts the membrane potential towards the resting membrane potential

    • E. 

      Neutralizes the plasma membrane

  • 25. 
    In order for a peripheral nerve fiber to regenerate it must have
    • A. 

      At least part of the soma intact

    • B. 

      At least the entire axon and neurilemma inteact

    • C. 

      The soma and at least some neurilemma intact

    • D. 

      All dendrites intact

    • E. 

      At least half the length of the fiber intact