Can You Pass This Difficult Physiology Exam? Trivia Quiz

44 Questions | Attempts: 47
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Physiology Quizzes & Trivia

Living things have a very interesting mechanism. Do you consider yourself so well informed when it comes to physiology? The quiz below is designed to test out what you know when it comes to this field of study and how the human body works. Take it up and get to see just how much you know so far. All the best!


Questions and Answers
  • 1. 

    Cellulose, glycogen, and starch are all polymers of:

    • A.

      Glucose

    • B.

      Amino acids

    • C.

      Acetates

    • D.

      Glycerol

    • E.

      Sucrose

    Correct Answer
    A. Glucose
  • 2. 

    Our mouth "waters" when the _____ branch of the autonomic nervous system stimulates ______ cells to transport _______ across the glandular epithelium.

    • A.

      Sympathetic, duct, sodium

    • B.

      Parasympathetic, acinar, sodium

    • C.

      Sympathetic, acinar, sodium

    • D.

      Somatic, duct, water

    • E.

      Parasympathetic, acinar, calcium

    Correct Answer
    B. Parasympathetic, acinar, sodium
  • 3. 

    The s cells of the duodenal mucosa release _____, which binds to ______ in the exocrine pancreas

    • A.

      Cholecystokinin(cck), acinar cells

    • B.

      Secretin, duct cells

    • C.

      Gastrin, parietal

    • D.

      Lipase, acinar cells

    Correct Answer
    B. Secretin, duct cells
  • 4. 

    in the gastrointestinal system, which of the following cell types are enriched for carbonic anhydrase?

    • A.

      S cells

    • B.

      G cells

    • C.

      Parietal cells

    • D.

      Pancreatic duct cells

    Correct Answer(s)
    C. Parietal cells
    D. Pancreatic duct cells
  • 5. 

    lactase converts lactose to glucose and galactose. it is an example of a(n):

    • A.

      Brush border enzyme

    • B.

      Protease

    • C.

      Amylase

    • D.

      Transmembrane protein

    Correct Answer(s)
    A. Brush border enzyme
    D. Transmembrane protein
  • 6. 

    The blood supply to the liver contains

    • A.

      Arterial blood from the left side of the heart

    • B.

      Blood from the hepatic portal system

    • C.

      Blood from the stomach

    • D.

      Lymph from the lacteals

    Correct Answer(s)
    A. Arterial blood from the left side of the heart
    B. Blood from the hepatic portal system
  • 7. 

    The blood vessels in the intestinal villi carry blood into the _____ on the way to the liver:

    • A.

      Lacteal

    • B.

      Hepatic artery

    • C.

      Hepatic vein

    • D.

      Hepatic portal vein

    • E.

      Lymphatic duct

    Correct Answer
    D. Hepatic portal vein
  • 8. 

    Which of the following is (are) found in the apical membranes of parietal cells?

    • A.

      Gastrin receptor

    • B.

      Acetylcholine receptor

    • C.

      H2 histamine receptor

    • D.

      K+/h+ atp dependent exchanger

    • E.

      All except k+/h+ tap dependent exchanger

    Correct Answer
    D. K+/h+ atp dependent exchanger
  • 9. 

    Glucose in the small intestine moves from the lumen of the small intestine into the epithelial cells by:

    • A.

      Osmosis

    • B.

      Passive diffusion down a concentration gradient

    • C.

      Passive diffusion through a transmembrane Na+ channel

    • D.

      Cotransport with Na+

    Correct Answer
    D. Cotransport with Na+
  • 10. 

    Cholecystokinine (cck) is a _____ hormone that binds to _____ cells in the _____ to cause the release of digestive enzymes.

    • A.

      Peptide, i-cells, stomach mucosa

    • B.

      Steroid, duct epithelial cells, exocrine pancreas

    • C.

      Peptide, acinar cells, exocrine pancreas

    • D.

      Steroid, i-cells, stomach mucosa

    • E.

      Peptide, acinar cells, stomach mucosa

    Correct Answer
    C. Peptide, acinar cells, exocrine pancreas
  • 11. 

    Chymotrypsin, which digests ____ into ____, is released as chymotrypsinogen from the _____.

    • A.

      Starch, maltose, endocrine pancreas

    • B.

      Starch, glucose, acinar cells of the pancreas

    • C.

      Protein, peptides, acinar cells of the pancreas

    • D.

      Protein, peptides, chief cells of the stomach epithelium

    • E.

      Protein, amino acids, acinar cells of the pancreas

    Correct Answer
    C. Protein, peptides, acinar cells of the pancreas
  • 12. 

    Which of the following is (are) found in the apical plasma membranes of enterocytes in the small intestine?

    • A.

      Amylase

    • B.

      Trypsin

    • C.

      Na+ driven amino acid transporters

    • D.

      Carboxy peptidase

    Correct Answer(s)
    C. Na+ driven amino acid transporters
    D. Carboxy peptidase
  • 13. 

    For bile salts and bile acids _____ is ______.

    • A.

      Cholesterol, hydrophobic

    • B.

      Cholesterol, hydrophilic

    • C.

      Taurine or glycine, hydrophilic

    • D.

      Taurine or glycine, hydrophobic

    Correct Answer(s)
    A. Cholesterol, hydrophobic
    C. Taurine or glycine, hydrophilic
  • 14. 

    The role of pancreatic lipase is to:

    • A.

      Remove waste products of hemoglobin destruction

    • B.

      Break the ester bond between fatty acids and glycerol in triglycerides

    • C.

      Convert fatty acids into acetate groups

    • D.

      Act as a detergent and emulsify fats into smaller micelles

    Correct Answer
    B. Break the ester bond between fatty acids and glycerol in triglycerides
  • 15. 

    Chylomicrons:

    • A.

      Are assembled in the smooth endoplasmic reticulum and golgi apparatus of intestinal epithelial cells

    • B.

      Released from intestinal epithelial cells

    • C.

      Enter the lymphatic system

    • D.

      Enter the blood in the subclavian vein

    • E.

      All answers are correct

    Correct Answer
    E. All answers are correct
  • 16. 

    in the kidney and small intestine, high concentrations of _____ permit the resorption of ______.

    • A.

      Vasopressin, sodium

    • B.

      Sodium, glucose

    • C.

      Sodium, amino acids

    • D.

      Insulin, glucose

    Correct Answer(s)
    B. Sodium, glucose
    C. Sodium, amino acids
  • 17. 

    The aldosterone receptor is a _____ found in the _____.

    • A.

      Transmembrane protein, cells of the proximal convoluted tubule

    • B.

      Cytoplasmic protein, cells of the distal convoluted tubule

    • C.

      Transmembrane protein, cells of the collecting duct

    • D.

      Cytoplasmic protein, cells of the proximal convoluted tubule

    Correct Answer
    B. Cytoplasmic protein, cells of the distal convoluted tubule
  • 18. 

    The vasa recta carry ______, and are _____ to ______.

    • A.

      Filtrate, impermeable, protein

    • B.

      Filtrate, impermeable, water and ions and urea

    • C.

      Filtrate, permeable, proteins

    • D.

      Blood, impermeable, water and ions and urea

    • E.

      Blood, permeable, water and ions and urea

    Correct Answer
    E. Blood, permeable, water and ions and urea
  • 19. 

    Much of the ______ that returns water to the glomerulus in Bowman's capsule is produced by ______.

    • A.

      Osmotic pressure, glucose

    • B.

      Hydrostatic pressure, the heart

    • C.

      Hydrostatic pressure, plasma proteins

    • D.

      Osmotic pressure, plasma proteins

    • E.

      Osmotic pressure, amino acids

    Correct Answer
    D. Osmotic pressure, plasma proteins
  • 20. 

    Vasopressin is a ______ hormone that binds to _____ in the _______ epithelial cells.

    • A.

      Peptide hormone, cytoplasmic receptors, collecting duct

    • B.

      Steroid hormone, cytoplasmic receptors, distal convoluted tubule

    • C.

      Peptide hormone, g protein coupled receptors, descending limp of the loop of nephron

    • D.

      Peptide hormone, g protein coupled receptors, collecting duct

    • E.

      Steroid hormone, cytoplasmic receptors, collecting duct

    Correct Answer
    D. Peptide hormone, g protein coupled receptors, collecting duct
  • 21. 

    Cells of the macula densa recognize changes in ____ and contribute to the control of hydrostatic pressure in the _____.

    • A.

      Glucose, vasa recta

    • B.

      NaCl concentration, glomerulus

    • C.

      KCl concentration, paratubular capilarry

    • D.

      Amino acid concentration, glomerulus

    • E.

      NaCl concentration, vasa recta

    Correct Answer
    B. NaCl concentration, glomerulus
  • 22. 

    An individual who has been on a diet high in sodium begins to eat a diet low in sodium, which of the following would you expect to be true in the hours to days after initiating the new diet?

    • A.

      The cells of the adrenal cortex would decrease their output of aldosterone

    • B.

      The number of aldosterone receptors located in the basilar plasma membranes of the epithelial cells of the dct would increase

    • C.

      The cells of the adrenal cortex would increase their output of aldosterone

    • D.

      Genes that code for Na+ channels and the Na/K ATPase would be turned on in epithelial cells of the dct

    Correct Answer(s)
    C. The cells of the adrenal cortex would increase their output of aldosterone
    D. Genes that code for Na+ channels and the Na/K ATPase would be turned on in epithelial cells of the dct
  • 23. 

    In the proximal convoluted tubule, sodium leaves the epithelial cells by

    • A.

      Diffusing down its concentration gradient through Na channels in the basilar membrane

    • B.

      Diffusing down ints concentration gradient through Na channels in the apical membrane

    • C.

      Being pumped across the basilar membrane by a Na/K ATPase

    • D.

      Being pumped across the apical membrane by a Na/K ATPase

    • E.

      Being transported with an amino acid on a Na+ driven cotransporter

    Correct Answer
    C. Being pumped across the basilar membrane by a Na/K ATPase
  • 24. 

    Following a 24 hour period of no water intake, you would expect blood levels of vasopressin to be ____ and number of _____ in epithelial cells of the collectin duct to be ______.

    • A.

      High, aquaporins, high

    • B.

      Low, aquaporins, low

    • C.

      High, Na+ channels, low

    • D.

      Low, Na+ channels, low

    Correct Answer
    A. High, aquaporins, high
  • 25. 

    The cell bodies of the neruons that form synapses in the diaphragm are found in the:

    • A.

      Brain stem

    • B.

      Cerebral cortex

    • C.

      Ventral horn of the cervical spinal cord

    • D.

      White matter of the spinal cord

    • E.

      Sympathetic chain ganglia

    Correct Answer
    C. Ventral horn of the cervical spinal cord
  • 26. 

    The role of carbonic anhydrase in erythrocytes in capillaries in active muscle is to speed up generation of:

    • A.

      CO2 from HCO3- & H+

    • B.

      HCO3- and H+ from CO2 and water

    • C.

      CO2 from glucose and O2

    • D.

      O2 from CO2

    Correct Answer
    B. HCO3- and H+ from CO2 and water
  • 27. 

    In tissues, such as muscle during exercise, Po2 is _____, so that O2 _____ the _____ in hemoglobin.

    • A.

      High, binds to, amino acids

    • B.

      High, binds to, iron

    • C.

      Low, binds to, iron

    • D.

      Low, dissociates from, iron

    • E.

      Low, dissociates from, amino acids

    Correct Answer
    D. Low, dissociates from, iron
  • 28. 

    In the lung, smooth muscle is found in the _____ where epinephrine causes the muscle to _____ and _____.

    • A.

      Conducting zone, relax, open the airway to reduce the resistance to air flow

    • B.

      Respiratory zone, contract, close the airway to increase the resistance to air flow

    • C.

      Respiratory zone, relax, open the airway to reduce the resistance to air flow

    • D.

      Conducting zone, contract, close the airway to increase the resistance to air flow

    • E.

      Conducting zone, contract, open the airway to reduce the resistance to air flow

    Correct Answer
    A. Conducting zone, relax, open the airway to reduce the resistance to air flow
  • 29. 

    Type II cells secrete detergent like molecules whose effect is to _____ in aveoli and ______.

    • A.

      Decrease surface tension, increase lung compliance

    • B.

      Increase surface tension, increase lung compliance

    • C.

      Decrease surface tension, increase elastic recoil

    • D.

      Increase surface tension, increase elastic recoil

    Correct Answer
    A. Decrease surface tension, increase lung compliance
  • 30. 

    The cells in the brain stem that control and regulate breathing rhythm respond primarily to the concentration of ______ in the _______.

    • A.

      HCO3-, arterial blood

    • B.

      CO2, cerebrospinal fluid

    • C.

      H+, arterial blood

    • D.

      H+, cerebrospinal fluid

    • E.

      HCO3-, cerebrospinal fluid

    Correct Answer
    D. H+, cerebrospinal fluid
  • 31. 

    until the late 1930's, prolonged thoracic surgery was problematic because once the intrapleural cavity was opened to the atmosphere, the lung collapsed. which of the following could have been used to solve this problem?

    • A.

      Place an airtight helmet on the patient and increase the pressure in the helmet above atmospheric pressure

    • B.

      Construct a room where the patients head was outside the room at atmospheric pressure, and atmospheric pressure in the room could be reduced with pumps

    • C.

      Decrease the pH of the patient's blood to increase the breathing rate

    • D.

      Warm the patient's blood to enhance oxygen dissociate from hemoglobin

    Correct Answer(s)
    A. Place an airtight helmet on the patient and increase the pressure in the helmet above atmospheric pressure
    B. Construct a room where the patients head was outside the room at atmospheric pressure, and atmospheric pressure in the room could be reduced with pumps
  • 32. 

    At an altitude of 25,000 feet above sea level, the atmospheric pressure is 282 mm Hg. in the alveoli of the lungs, the percentage of O2 is 14%, for a rightward shift, what is the percent saturation of hemoglobin in the alveolus under these conditions (y axis)? use the law of partial pressure

    • A.

      95%

    • B.

      85%

    • C.

      75%

    • D.

      55&

    • E.

      45%

    Correct Answer
    D. 55&
  • 33. 

    Most of the carbon dioxide is carried in the blood as:

    • A.

      CO2 dissolved in plasma

    • B.

      CO2 bound to hemoglobin

    • C.

      CO2 bound to plasma proteins

    • D.

      CO2 in the cytoplasm of the red blood cell

    • E.

      As HCO3- (bicarbonate) dissolved in the blood

    Correct Answer
    E. As HCO3- (bicarbonate) dissolved in the blood
  • 34. 

    In some respitory diseases, the elastic recoil of the lung is drastically decreased. the effect of this disease is to hamper:

    • A.

      Inspiration

    • B.

      Muscle contraction in diaphragm

    • C.

      Expiration

    • D.

      Access of air in the alveoli

    Correct Answer
    C. Expiration
  • 35. 

    The phrenic nerve innervates ______ muscle of the diaphragm and releases the neurotransmitter ______.

    • A.

      Smooth, epinephrine

    • B.

      Smooth, acetylcholine

    • C.

      Smooth, norepinephrine

    • D.

      Skeletal muscle, epinephrine

    • E.

      Skeletal muscle, acetylcholine

    Correct Answer
    E. Skeletal muscle, acetylcholine
  • 36. 

    The peripheral chemosensors that can affect breathing rate monitor CO2 and O2 in ______ blood.

    • A.

      Venous blood

    • B.

      Arterial

    • C.

      Pulmonary capillary

    • D.

      Systemic capillary

    Correct Answer
    B. Arterial
  • 37. 

    Intrapulmonary pressure is greater than the atmospheric pressure

    • A.

      During inspiration

    • B.

      During expiration

    • C.

      At all times during inspiration and expiration

    • D.

      Only when air is neither moving in nor out of the lungs

    Correct Answer
    B. During expiration
  • 38. 

    When the amount of oxygen carried in the blood is reduced, cells in the _____ increase the production of the protein hormone _____.

    • A.

      Kidney, erythropoietin

    • B.

      Red bone marrow, calcitonin

    • C.

      Liver, ferritin

    • D.

      Kidney, calcitonin

    • E.

      Red bone marrow, erythropoietin

    Correct Answer
    A. Kidney, erythropoietin
  • 39. 

    CCK is a peptide hormone released from cells in the small intestine, it binds to receptors on:

    • A.

      S cells in the intestinal mucosa

    • B.

      Chief cells in the stomach

    • C.

      Duct epithelial cells in the pancreas

    • D.

      Ascinar cells in the pancreas

    Correct Answer
    D. Ascinar cells in the pancreas
  • 40. 

    In the mucosa of the stomach, the ____ cell is enriched for carbonic anhydrase and contains receptors for ____.

    • A.

      G cell, gastrin

    • B.

      Duct epithelial cell, gastrin

    • C.

      Duct epithelial cell, secretin

    • D.

      Parietal cell, gastrin

    • E.

      Chief, CCK

    Correct Answer
    D. Parietal cell, gastrin
  • 41. 

    In the stomach, the region that is enriched for elastin and permits its expansion is the

    • A.

      Mucosa

    • B.

      Submucosa

    • C.

      Muscular layer

    • D.

      Serosa

    • E.

      Mesothelium

    Correct Answer
    B. Submucosa
  • 42. 

    Which of the following is (are) enzymes that act in the bulk fluid in the lumen of the intestine?

    • A.

      Pancreatic amylase

    • B.

      Trypsin

    • C.

      Carboxy peptidase

    • D.

      Maltase

    Correct Answer(s)
    A. Pancreatic amylase
    B. Trypsin
  • 43. 

    In the salivary glands of the mouth, Na+ channels are found predominately on the basilar membrane. The Na+/K+ ATPases are located on the _____ surface of the secretory epithelial cells. The _____ cells lack aquaporins.

    • A.

      Apical, duct

    • B.

      Apical, secretory

    • C.

      Basilar, secretory

    • D.

      Basilar, duct

    Correct Answer
    A. Apical, duct
  • 44. 

    The cells that release glucose in response to low blood glucose are the

    • A.

      Alpha cells of the endocrine pancreas

    • B.

      Beta cells of the endocrine pancreas

    • C.

      Epithelial cells of the small intestine

    • D.

      Acinar cells of the pancreas

    • E.

      Hepatocytes

    Correct Answer
    E. Hepatocytes

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  • Mar 21, 2022
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