Portage BIOD 151 Final Exam
A patient has a diagnosis of osteoporosis. (1) In your own words, describe this diagnosis and (2)
What type of bone cell would they be lacking? Explain your answer. - correct anwers(1)
Osteoporosis is a bone tissue disease. When bone tissue degenerates faster than is replaced,
the bones become weak. Brittle bones cause increased pain and are more likely to fracture. (2)
They would have decreased osteoblasts which are responsible for bone repair. The bone repair
would be unable to keep up with the ongoing breakdown of bone which is done by the work of
osteoblasts.
A. Identify the sensory cell receptor highlighted in blue, below, also indicated by the arrow. B.
What sensory information is detected by this type of receptor? - correct anwersA) Meisner's
corpuscles; B) Detects light touch and vibration (mechanoreceptor)
a. The purpose of cellular respiration is to produce ADP. (T or F) - correct anwersa. False- (ATP is
produced, not ADP)
Air and food pass in which one of the following areas: Trachea, Nasopharynx, Oropharynx,
Alveoli - correct anwersOropharynx
Aldosterone is involved in the regulation of sodium and potassium in the body. Explain how too
much aldosterone could contribute to high blood pressure. - correct anwersAldosterone's
primary target organ is the kidney, where it promotes renal absorption of sodium and renal
excretion of potassium. The blood sodium level is particularly important to the maintenance of
blood pressure. Too much sodium causes retention of fluid and increases blood pressure.
Therefore, too much aldosterone will cause increased and potentially high blood pressure.
b. Peripheral proteins are found on the outer surface of a cell membrane. (T or F) - correct
anwersb. True
c. Exocytosis is the process that occurs to bring biomacromolecules inside the cell. (T or F) -
correct anwersc. False- (This process is called endocytosis)
d. Receptor mediated endocytosis uses a signaling molecule from another cell, binding to the
cell membrane to bring about changes within the cell proteins. (T or F) - correct anwersd. True
A patient has a diagnosis of osteoporosis. (1) In your own words, describe this diagnosis and (2)
What type of bone cell would they be lacking? Explain your answer. - correct anwers(1)
Osteoporosis is a bone tissue disease. When bone tissue degenerates faster than is replaced,
the bones become weak. Brittle bones cause increased pain and are more likely to fracture. (2)
They would have decreased osteoblasts which are responsible for bone repair. The bone repair
would be unable to keep up with the ongoing breakdown of bone which is done by the work of
osteoblasts.
A. Identify the sensory cell receptor highlighted in blue, below, also indicated by the arrow. B.
What sensory information is detected by this type of receptor? - correct anwersA) Meisner's
corpuscles; B) Detects light touch and vibration (mechanoreceptor)
a. The purpose of cellular respiration is to produce ADP. (T or F) - correct anwersa. False- (ATP is
produced, not ADP)
Air and food pass in which one of the following areas: Trachea, Nasopharynx, Oropharynx,
Alveoli - correct anwersOropharynx
Aldosterone is involved in the regulation of sodium and potassium in the body. Explain how too
much aldosterone could contribute to high blood pressure. - correct anwersAldosterone's
primary target organ is the kidney, where it promotes renal absorption of sodium and renal
excretion of potassium. The blood sodium level is particularly important to the maintenance of
blood pressure. Too much sodium causes retention of fluid and increases blood pressure.
Therefore, too much aldosterone will cause increased and potentially high blood pressure.
b. Peripheral proteins are found on the outer surface of a cell membrane. (T or F) - correct
anwersb. True
c. Exocytosis is the process that occurs to bring biomacromolecules inside the cell. (T or F) -
correct anwersc. False- (This process is called endocytosis)
d. Receptor mediated endocytosis uses a signaling molecule from another cell, binding to the
cell membrane to bring about changes within the cell proteins. (T or F) - correct anwersd. True
