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Biology Exam 4

72 Questions
Biology Quizzes & Trivia

To help prepare for final biology 103 exam.

Questions and Answers
  • 1. 
    High-flying birs are able to obtain enough oxygen even when the air is very thin because
    • A. 

      Their heart can increase or decrease in size as altitude changes

    • B. 

      They are able to store oxygen chambers within muscle cells

    • C. 

      They have reduce amounts of hemoglobin in their blood

    • D. 

      They have more efficient lunds than other vertebrates

    • E. 

      Their mitochondria are more efficient than those of other vertebrates

  • 2. 
    High-flying birs are able to obtain enough oxygen even when the air is very thin because
    • A. 

      Their heart can increase or decrease in size as altitude changes

    • B. 

      They are able to store oxygen chambers within muscle cells

    • C. 

      They have reduce amounts of hemoglobin in their blood

    • D. 

      They have more efficient lunds than other vertebrates

    • E. 

      Their mitochondria are more efficient than those of other vertebrates

  • 3. 
    If you were to move from around sea level to a much higher altitude, your body would respond with
    • A. 

      An increase in energy production

    • B. 

      A decrease in the affinity of hemoglobin for oxygen

    • C. 

      An increase in the number of red blood cells

    • D. 

      Profuse sweating

    • E. 

      A decrease in the diameter and number of capillaries close to your body's surface

  • 4. 
    If you were to move from around sea level to a much higher altitude, your body would respond with
    • A. 

      An increase in energy production

    • B. 

      A decrease in the affinity of hemoglobin for oxygen

    • C. 

      An increase in the number of red blood cells

    • D. 

      Profuse sweating

    • E. 

      A decrease in the diameter and number of capillaries close to your body's surface

  • 5. 
    The reason animals need continuous supply of oxygen is to
    • A. 

      Obtain energy from their food

    • B. 

      Make carbon dioxide

    • C. 

      Dispose of carbon dioxide

    • D. 

      Carry out glycolysis

    • E. 

      Synthesize protein

  • 6. 
    The reason animals need continuous supply of oxygen is to
    • A. 

      Obtain energy from their food

    • B. 

      Make carbon dioxide

    • C. 

      Dispose of carbon dioxide

    • D. 

      Carry out glycolysis

    • E. 

      Synthesize protein

  • 7. 
    A waste product of repsiration is
    • A. 

      Electrons

    • B. 

      Water

    • C. 

      Hydrogen peroxide

    • D. 

      Carbon dioxide

    • E. 

      Glucose

  • 8. 
    A waste product of repsiration is
    • A. 

      Electrons

    • B. 

      Water

    • C. 

      Hydrogen peroxide

    • D. 

      Carbon dioxide

    • E. 

      Glucose

  • 9. 
    When you exhale, you
    • A. 

      Remove CO2 from the body

    • B. 

      Exchange CO2 for O2

    • C. 

      Take up oxygen and release carbon dioxide to the blood

    • D. 

      Take up carbon dioxide and release oxygen

    • E. 

      Release oxygen and carbon dioxide

  • 10. 
    When you exhale, you
    • A. 

      Remove CO2 from the body

    • B. 

      Exchange CO2 for O2

    • C. 

      Take up oxygen and release carbon dioxide to the blood

    • D. 

      Take up carbon dioxide and release oxygen

    • E. 

      Release oxygen and carbon dioxide

  • 11. 
    The body structure where gas exchange occurs is called the
    • A. 

      Capillary surface

    • B. 

      Respiratory surface

    • C. 

      Integumentary surface

    • D. 

      Capillary network

    • E. 

      Exchange network

  • 12. 
    The body structure where gas exchange occurs is called the
    • A. 

      Capillary surface

    • B. 

      Respiratory surface

    • C. 

      Integumentary surface

    • D. 

      Capillary network

    • E. 

      Exchange network

  • 13. 
    Animals that effectively use their body surface for gas exchange must
    • A. 

      Be aquatic and nearly spherical

    • B. 

      Be terrestrial

    • C. 

      Have a high ratio of body surface area to volume

    • D. 

      Have a low ratio of body surface area to volume

    • E. 

      Have a special kind of hemoglobin

  • 14. 
    Animals that effectively use their body surface for gas exchange must
    • A. 

      Be aquatic and nearly spherical

    • B. 

      Be terrestrial

    • C. 

      Have a high ratio of body surface area to volume

    • D. 

      Have a low ratio of body surface area to volume

    • E. 

      Have a special kind of hemoglobin

  • 15. 
    Which of the following organisms has a repiratory system that does not require a circulatory system?
    • A. 

      Carp

    • B. 

      Mouse

    • C. 

      Grasshopper

    • D. 

      Earthworm

    • E. 

      Crayfish

  • 16. 
    Which of the following organisms has a repiratory system that does not require a circulatory system?
    • A. 

      Carp

    • B. 

      Mouse

    • C. 

      Grasshopper

    • D. 

      Earthworm

    • E. 

      Crayfish

  • 17. 
    The organization of blood and water flow in a fish's gills increases the fish's ability to
    • A. 

      Regulate fluid excretion from the body

    • B. 

      Extract oxygen from the water

    • C. 

      Detect toxic materials in the water

    • D. 

      Extract carbon dioxide from the water

    • E. 

      Transport blood throughout the fish's body

  • 18. 
    The organization of blood and water flow in a fish's gills increases the fish's ability to
    • A. 

      Regulate fluid excretion from the body

    • B. 

      Extract oxygen from the water

    • C. 

      Detect toxic materials in the water

    • D. 

      Extract carbon dioxide from the water

    • E. 

      Transport blood throughout the fish's body

  • 19. 
    Which of the following statements about fish gills is true?
    • A. 

      Because of the efficiency, they only need a small surface area

    • B. 

      They have a surface area that is much greater than the body surface

    • C. 

      They have a poor blood supply

    • D. 

      Like lungs, they have an exhale/inhale function

    • E. 

      They aid in reproduction

  • 20. 
    Which of the following statements about fish gills is true?
    • A. 

      Because of the efficiency, they only need a small surface area

    • B. 

      They have a surface area that is much greater than the body surface

    • C. 

      They have a poor blood supply

    • D. 

      Like lungs, they have an exhale/inhale function

    • E. 

      They aid in reproduction

  • 21. 
    The chief advantage of gas exchange in water is that
    • A. 

      Less energy is required to ventilate gills as compared to lungs

    • B. 

      Carbon dioxide is easier to eliminate in water than in air

    • C. 

      No energy is used to keep the exchange surface wet

    • D. 

      Water can contain more oxygen than air

    • E. 

      Contact between the respiratory surface and the gas-containing medium is more effiecient in water than in air

  • 22. 
    The chief advantage of gas exchange in water is that
    • A. 

      Less energy is required to ventilate gills as compared to lungs

    • B. 

      Carbon dioxide is easier to eliminate in water than in air

    • C. 

      No energy is used to keep the exchange surface wet

    • D. 

      Water can contain more oxygen than air

    • E. 

      Contact between the respiratory surface and the gas-containing medium is more effiecient in water than in air

  • 23. 
    Gills are unsuitable for animals living on land because
    • A. 

      Gills require high blood pressure

    • B. 

      The large surface area of gills would allow dehydration on the animal

    • C. 

      Air cannot diffuse across the gill surface

    • D. 

      There is no way to get air into the gills

    • E. 

      Gills do not function well in animals that have a diaphragm

  • 24. 
    In the countercurrent exchange system of fish gills,
    • A. 

      Water flow over the gills reverse direction with every inhalation

    • B. 

      Blood and water flow in opposite directions

    • C. 

      Blood and water flow in the same direction

    • D. 

      Blood flow in the gills reverses direction with every heartbeat

    • E. 

      Blood and water are separated by a thick polysaccharide barrier

  • 25. 
    Which of the following statements regarding breathing and circulation is false?
    • A. 

      Air-breathing animals lose water by evaporation

    • B. 

      The circulatory system of insects is not involved in transporting oxygen

    • C. 

      The tracheal system of insects consists of a series of branching air tubes that extend from the surface to deep inside th body

    • D. 

      A terrestial animal spends much more energy than an aquatic animal ventilating its respiratory surface

    • E. 

      Insects lose very little water by using a tracheal system to breathe

  • 26. 
    Which of the following statements regarding breathing and circulation is false?
    • A. 

      Air-breathing animals lose water by evaporation

    • B. 

      The circulatory system of insects is not involved in transporting oxygen

    • C. 

      The tracheal system of insects consists of a series of branching air tubes that extend from the surface to deep inside th body

    • D. 

      A terrestial animal spends much more energy than an aquatic animal ventilating its respiratory surface

    • E. 

      Insects lose very little water by using a tracheal system to breathe

  • 27. 
    Which of the following statements is false?
    • A. 

      Vocal cords in our bronchi allow us to speak

    • B. 

      Most amphibians use lungs and skin for gas exchange

    • C. 

      Gas exchange in the human lungs occurs in the alveoli

    • D. 

      It is easier to use the O2 in the air than in water becasue air is easier to move

    • E. 

      Unlike the tracheal system of insects, vertebrate lungs are restricted to one location in the body

  • 28. 
    Evolutionary movement of aquatic animals to land involved an intermediate individual that
    • A. 

      Could fly

    • B. 

      Had ribs to protect the heart and lungs

    • C. 

      Evolved a tracheal system of branching internal tubes

    • D. 

      Had both gills and lungs

    • E. 

      Is called a "podafish"

  • 29. 
    Which of the following animals requires the largest and most complex lungs proportional to its ovrall body size?
    • A. 

      Turtle

    • B. 

      Newt

    • C. 

      Bear

    • D. 

      Snake

    • E. 

      Frog

  • 30. 
    Which of the following animals requires the largest and most complex lungs proportional to its ovrall body size?
    • A. 

      Turtle

    • B. 

      Newt

    • C. 

      Bear

    • D. 

      Snake

    • E. 

      Frog

  • 31. 
    Which of the following options correctly lists the direction of carbon dioxide travel as it leaves the body?
    • A. 

      Alveloi, brochi,bronchioles, trachea, pharynx, larynx

    • B. 

      Alveloi, bronchi, bronchioles, trachea,laryn, pharynx

    • C. 

      Alveloi, bronchioles, bronchi, trachea, pharynx, larynx

    • D. 

      Alveoli, trachea, brochioles, brochi, pahrynx, larynx

    • E. 

      Alveoli, bronchioles, bronchi, trachea, larynx, pharynx

  • 32. 
    Which of the following is a function of the nasal cavities in humans?
    • A. 

      Warming inhaled air

    • B. 

      Determing o2 content in inhaled air

    • C. 

      Secreating excess carbon dioxide into exhaled air

    • D. 

      Secreting enzymes for digestion

    • E. 

      Providing a tract for nerve distribution

  • 33. 
    What is the name given tot he sheet of muscle that hleps move air in and out of the lungs?
    • A. 

      Larynx

    • B. 

      Diaphragm

    • C. 

      Alveolus

    • D. 

      Bronchus

    • E. 

      Trachea

  • 34. 
    Within the lungs, gas exchange occurs acorss
    • A. 

      Diaphragms

    • B. 

      Alveoli

    • C. 

      Bronchioles

    • D. 

      Bronchi

    • E. 

      Tracheae

  • 35. 
    The ______ is a passageway shared by both food and air.
    • A. 

      Larynx

    • B. 

      Pharynx

    • C. 

      Trachea

    • D. 

      Alvelous

    • E. 

      Nasal cavity

  • 36. 
    Ciagrette smoke can affect macrophages that reside in our lungs for the purpose of
    • A. 

      Engulfing particles and microorganisms

    • B. 

      Maintaining the appropirate pH and mositure content within the lungs

    • C. 

      Productin antibodies

    • D. 

      Preventing emphysema

    • E. 

      Enhancing oxygen and carbon dioxide exchange

  • 37. 
    Why do ciagrette smokes cough more than non smokers?
    • A. 

      Coughing stimulates blood flow to the lungs

    • B. 

      Ciagrette smoke harms the cilia that normally move debris out of the lungs and coughing is the remaining way to clean the lungs

    • C. 

      By raising the pressure inthe lungs, coughing fores more oxgygen into the blood

    • D. 

      The tar in cigarette smoke tends to make alveloi stick together, and coughing separates them

    • E. 

      Ciagrette smoking partially paralyzed the muscles in the lungs, resulting in an increased residual volume, and coughping exhanges this "dead air"

  • 38. 
    The maximum amount of air that a human can inhale and exhale is called the
    • A. 

      Vital capacity

    • B. 

      Maximum capacity

    • C. 

      Tidal volume

    • D. 

      Inhalation capacity

    • E. 

      Physiological volume

  • 39. 
    Why do ciagrette smokes cough more than non smokers?
    • A. 

      Coughing stimulates blood flow to the lungs

    • B. 

      Ciagrette smoke harms the cilia that normally move debris out of the lungs and coughing is the remaining way to clean the lungs

    • C. 

      By raising the pressure inthe lungs, coughing fores more oxgygen into the blood

    • D. 

      The tar in cigarette smoke tends to make alveloi stick together, and coughing separates them

    • E. 

      Ciagrette smoking partially paralyzed the muscles in the lungs, resulting in an increased residual volume, and coughping exhanges this "dead air"

  • 40. 
    Inhalation in humans is achieved by
    • A. 

      Contraction of the diaphragm

    • B. 

      Contraction of the diaphragm and chest muscles

    • C. 

      Relaxation of the diaphragm and chest muscles

    • D. 

      Contraction of muscles in the lungs

    • E. 

      Relaxation of the diaphram

  • 41. 
    The maximum amount of air that a human can inhale and exhale is called the
    • A. 

      Vital capacity

    • B. 

      Maximum capacity

    • C. 

      Tidal volume

    • D. 

      Inhalation capacity

    • E. 

      Physiological volume

  • 42. 
    When you are breathing normally, exhalation results mainly from
    • A. 

      The contraction of muscles in the chest

    • B. 

      The contaction of the diaphragm

    • C. 

      Low pressure in the lungs

    • D. 

      The relaxation of the chest muscles and diaphragm

    • E. 

      The contraction of muscles in the lungs

  • 43. 
    The function of passageways for gas exchange in birds is to
    • A. 

      Store air for times of physical excretion

    • B. 

      Adjust the temperatuve of air

    • C. 

      Lighten the bird

    • D. 

      Clean the air

    • E. 

      Permit one-way ventilation of the lungs

  • 44. 
    When you are breathing normally, exhalation results mainly from
    • A. 

      The contraction of muscles in the chest

    • B. 

      The contaction of the diaphragm

    • C. 

      Low pressure in the lungs

    • D. 

      The relaxation of the chest muscles and diaphragm

    • E. 

      The contraction of muscles in the lungs

  • 45. 
    Air leaving human lungs during exhalation contains
    • A. 

      No carbon dioxide

    • B. 

      No oxygen

    • C. 

      Mostly carbon dioxide and carbon monoxide

    • D. 

      One-half oxygen and one- half carbon dioxide

    • E. 

      Carbon dioxide and unused oxygen

  • 46. 
    What part of the human brain is the premary breathing control center?
    • A. 

      Cerebellum

    • B. 

      Neocortex

    • C. 

      Thalamus

    • D. 

      Hippocampus

    • E. 

      Medulla oblongata

  • 47. 
    Medullary breathing centeres directly sense and response to
    • A. 

      Blood O2 concentration

    • B. 

      Alveolar CO2 concentration

    • C. 

      Blood pH and O2 concentration

    • D. 

      Blood pH and CO2 Concentration

    • E. 

      Alveolar O2 concentration

  • 48. 
    What part of the human brain is the premary breathing control center?
    • A. 

      Cerebellum

    • B. 

      Neocortex

    • C. 

      Thalamus

    • D. 

      Hippocampus

    • E. 

      Medulla oblongata

  • 49. 
    In a mammal, blood leaving the lungs goes to the
    • A. 

      Heart

    • B. 

      Limbs

    • C. 

      Liver

    • D. 

      Kidneys

    • E. 

      Brain

  • 50. 
    Medullary breathing centeres directly sense and response to
    • A. 

      Blood O2 concentration

    • B. 

      Alveolar CO2 concentration

    • C. 

      Blood pH and O2 concentration

    • D. 

      Blood pH and CO2 Concentration

    • E. 

      Alveolar O2 concentration

  • 51. 
    An oxygen molecule enter an alveolus.  If it is to reach a red blood cell, its next step must be to
    • A. 

      Diffuse across teh alveolar epithelium

    • B. 

      Dissolve in the fluid lining the avelolus

    • C. 

      Diffuse across a capillary epithelium

    • D. 

      Dissolve in the plasma of blood surrounding the alveolus

    • E. 

      Pass down a bronchiole to an air sac

  • 52. 
    Oxygen is mostly transported throught the body
    • A. 

      Bound to carbon

    • B. 

      Dissolved in the blood

    • C. 

      Bound to hemoglobin

    • D. 

      Bound to dissolved iron

    • E. 

      Dissolved in red blood cells

  • 53. 
    An oxygen molecule enter an alveolus.  If it is to reach a red blood cell, its next step must be to
    • A. 

      Diffuse across teh alveolar epithelium

    • B. 

      Dissolve in the fluid lining the avelolus

    • C. 

      Diffuse across a capillary epithelium

    • D. 

      Dissolve in the plasma of blood surrounding the alveolus

    • E. 

      Pass down a bronchiole to an air sac

  • 54. 
    The oxygen carrying componenent in red blood cells is
    • A. 

      The cell membrane

    • B. 

      Bicarbonate ions

    • C. 

      Iron

    • D. 

      Hemoglobin

    • E. 

      Carbon dioxide

  • 55. 
    Most CO2 is transported to the lungs
    • A. 

      Dissolved in the plasma

    • B. 

      As carboxyl

    • C. 

      Attached to hemoglobin

    • D. 

      As bicarbonate ions

    • E. 

      As carbonic anhydrase

  • 56. 
    The oxygen carrying componenent in red blood cells is
    • A. 

      The cell membrane

    • B. 

      Bicarbonate ions

    • C. 

      Iron

    • D. 

      Hemoglobin

    • E. 

      Carbon dioxide

  • 57. 
    In the capillaries of the body, oxygen released from hemoglobin first diffuses into the
    • A. 

      Alveoli

    • B. 

      Blood plasma

    • C. 

      Pulmonary veins

    • D. 

      Pulmonary arteries

    • E. 

      Interstitial fluid

  • 58. 
    Most CO2 is transported to the lungs
    • A. 

      Dissolved in the plasma

    • B. 

      As carboxyl

    • C. 

      Attached to hemoglobin

    • D. 

      As bicarbonate ions

    • E. 

      As carbonic anhydrase

  • 59. 
    What prompts a newborn baby to start to breathe?
    • A. 

      A change in the temperature on the surface of the skin

    • B. 

      A decrease in the conentration of oxygen in the baby's blood

    • C. 

      An increase in the pH of the baby's blood

    • D. 

      Exposure to air

    • E. 

      An increase in the concentration of carbon dioxide in the baby's blood

  • 60. 
    One molecule of hemoglobin binds with _ molecles of oxygen to form one molecule of Oxyhemoblobin.
    • A. 

      Four

    • B. 

      Three

    • C. 

      Two

    • D. 

      One

  • 61. 
    Carbon monoxide binds hemoglobin __________ times faster than Oxygen.
    • A. 

      200

    • B. 

      20

    • C. 

      2000

    • D. 

      400

  • 62. 
    Which of the followings is an adaptation of insects?
    • A. 

      Tracheal system

    • B. 

      Gills

    • C. 

      Lungs

    • D. 

      Moist skin

  • 63. 
    If atmospheric pressure at sea level is 760 mmHG and Oysgen constituites 21% of teh atmosphere, the partial pressure dut to Oxygen is ______ mmHG.
    • A. 

      592.8

    • B. 

      160

    • C. 

      0.304

    • D. 

      7.2

  • 64. 
    Lining of bronchial tubes is irritated leadying to excess prodcution of mucus during _____________.
    • A. 

      Bronchitis

    • B. 

      Strep throat

    • C. 

      Tuberculosis

    • D. 

      Emphysema

  • 65. 
    Spiracles are related to which of the following?
    • A. 

      Trachea

    • B. 

      Gills

    • C. 

      Lungs

    • D. 

      Moist Skin

  • 66. 
    Oxygen is mostly transported through the body
    • A. 

      Dissolved in the blood

    • B. 

      Bound to carbon

    • C. 

      Bound to hemoglobin

    • D. 

      Dissolved in red blood cells

  • 67. 
    _____ breath through both lungs and moist skin.
    • A. 

      Frogs

    • B. 

      Birds

    • C. 

      Insects

    • D. 

      Fish

  • 68. 
    Lining of bronchial tubes is irritated leadying to excess prodcution of mucus during _____________.
    • A. 

      Bronchitis

    • B. 

      Strep throat

    • C. 

      Tuberculosis

    • D. 

      Emphysema

  • 69. 
    Spiracles are related to which of the following?
    • A. 

      Trachea

    • B. 

      Gills

    • C. 

      Lungs

    • D. 

      Moist Skin

  • 70. 
    People like Sherpas living at higher elevations in teh Himalayas are belived to
    • A. 

      Produce more RBC, have larger ventricles in teh heart, and more alveoli in the lungs

    • B. 

      Produce less RBC, have smaller ventricles in the heart and more alveoli in the lungs

    • C. 

      Procude more WBC, have larger ventricles in the heart and more alveoli in the lungs

    • D. 

      Produce more platelets, have larger ventricles in the heart and more alveoli in the lungs.

  • 71. 
    Oxygen is mostly transported through the body
    • A. 

      Dissolved in the blood

    • B. 

      Bound to carbon

    • C. 

      Bound to hemoglobin

    • D. 

      Dissolved in red blood cells

  • 72. 
    _____ breath through both lungs and moist skin.
    • A. 

      Frogs

    • B. 

      Birds

    • C. 

      Insects

    • D. 

      Fish