Part A Completion
Complete each
sentence or statement.
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1.
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The ____________________ is a flap of tissue that prevents food from entering
the trachea.
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2.
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Most of the chemical digestion of food occurs in the first part of the
_________________________.
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3.
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Vessels that return blood to the heart are called ____________________.
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4.
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The waste product of cell processes that is removed from the blood in the lungs
is _________________________.
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Part B Matching
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Match the following terms with the correct description. a. | pathogens | d. | toxins | b. | antigens | e. | pus | c. | antibodies |
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5.
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made of dead white cells and microbes
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6.
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causes the immune response to begin
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7.
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any disease-causing organism
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8.
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produced by some micro-organisms
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9.
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produced by white blood cells
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Part C Multiple Choice
Identify
the letter of the choice that best completes the statement or answers the question.
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10.
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Which muscles contract when you inhale?
a. | rib muscles | c. | both of the above | b. | diaphragm | d. | none of the
above |
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11.
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The process of getting rid of metabolic wastes in the body is called
a. | excretion | c. | circulation | b. | digestion | d. | endocrine |
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12.
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Nephrons are located in the
a. | kidney | c. | ureter | b. | urethra | d. | bladder |
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13.
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Chemicals that speed up the process of digestion are called
a. | hormones | c. | antibodies | b. | enzymes | d. | antigens |
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14.
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Which system provides oxygen to and removes carbon dioxide from the body?
a. | digestive system | c. | endocrine system | b. | circulatory system | d. | respiratory
system |
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15.
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Disease causing organisms are called
a. | antigens | c. | antibodies | b. | pathogens | d. | toxins |
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Part D Short Answer
Use sentences to answer the following
questions.
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16.
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Describe the parts of the lungs where gas exchange occurs. How are they
structured to do their jobs?
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17.
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Why is your heart called a double pump?
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18.
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Label the following diagram of the excretory system. 
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19.
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Describe the roles of diffusion and osmosis in the circulatory and excretory
systems.
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20.
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Compare the body’s natural immune response to the immunity produced by a
vaccination.
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