BSC 216 LAB EXAM 3 QUESTIONS ANSWERS
Elevated levels of glucose in the urine could be a sign of what? - Answer -diabetes
person eating a diet with very little to no carbohydrates will likely have what in their
urine? - Answer -ketones (any pink is positive)
Leukocytes present in the urine could be a sign of what? (any sign of purple) - Answer -
UTI; infection (can also be a sign of kidney stones in some cases)
What is the purpose of the circular folds and villi in the small intestines? - Answer -
circular folds(plicae circulares) = increase surface area by a factor of 2 to 3
villi = increase surface area by a factor of 10
microvilli = increase surface area by a factor of 20
What is the function of the gall bladder in digestion? - Answer -serves to store &
concentrate bile by a factor of 20 by absorbing water & electrolytes (about 10 cm long)
**** does NOT produce bile, the LIVER produces bile!!!
What are the two anatomical subdivisions of the digestive system? - Answer -
alimentary & accesory
What are the organs of the alimentary canal in the digestive system? - Answer -mouth,
pharynx, esophagus, stomach, small intestine, large insestine
What are the accessory organs of the digestive system? - Answer -teeth, tongue,
salivary glands, liver, gallbladder, and pancreas
What does the gastrointestinal (GI) tract consist of? - Answer -stomach and intestines
What are the tissue layers of the digestive tract in order from external to internal? -
Answer -Serosa
Muscularis Externa
Submucosa
Mucosa
(Lumen inside mucosa)
HCl is produced by the ________ cells in the gastic glands of the gastric pits - Answer -
parietal
Which digestive structure is commonly called the "throat?" - Answer -pharynx
, Which digestive structure absorbs water and consolidates waste? - Answer -large
intestine
Which accessory organ produces secretions that moisten food? - Answer -salivary
gland
Which accessory organ stores bile? - Answer -gallbladder
In what digestive organ is the parietal cell located? - Answer -stomach
In what digestive organ is the acinar cell located? - Answer -pancreas
What structure separates the renal pyramids? - Answer -renal column
Which of the following is true about tubular reabsorption?
(a) It always involves active transport.
(b) It moves water and solute from the blood to the filtrate.
(c) It always happens via the paracellular route.
(d) It involves carrier-mediated transport. - Answer -(d) It involves carrier-mediated
transport.
Aldosterone antagonist drugs prevent aldosterone from having an effect at its receptors.
As a result __________. - Answer -more urine will be produced (Aldosterone
antagonists are diuretic drugs. Less Na+, and therefore less water reabsorption, results
in increased diuresis.)
Consuming alcohol inhibits the release of ADH. As a result __________. - Answer -
urine volume will increase
Most nutrients, such as glucose, are reabsorbed in the __________. - Answer -
proximal tubule (which is also responsible for the reabsorption of nearly 100% of
nutrients such as glucose, amino acids, and other organic substances)
Which structure travels through the spermatic cord? - Answer -ductus deferens
Which structure is the male copulatory organ? - Answer -penis
Which structure is the site of implantation? - Answer -uterus
Which term describes the female external genitalia? - Answer -vulva
What is spermatogenesis? - Answer -production of sperm
Where does oogenesis primarily occur? - Answer -ovary
Elevated levels of glucose in the urine could be a sign of what? - Answer -diabetes
person eating a diet with very little to no carbohydrates will likely have what in their
urine? - Answer -ketones (any pink is positive)
Leukocytes present in the urine could be a sign of what? (any sign of purple) - Answer -
UTI; infection (can also be a sign of kidney stones in some cases)
What is the purpose of the circular folds and villi in the small intestines? - Answer -
circular folds(plicae circulares) = increase surface area by a factor of 2 to 3
villi = increase surface area by a factor of 10
microvilli = increase surface area by a factor of 20
What is the function of the gall bladder in digestion? - Answer -serves to store &
concentrate bile by a factor of 20 by absorbing water & electrolytes (about 10 cm long)
**** does NOT produce bile, the LIVER produces bile!!!
What are the two anatomical subdivisions of the digestive system? - Answer -
alimentary & accesory
What are the organs of the alimentary canal in the digestive system? - Answer -mouth,
pharynx, esophagus, stomach, small intestine, large insestine
What are the accessory organs of the digestive system? - Answer -teeth, tongue,
salivary glands, liver, gallbladder, and pancreas
What does the gastrointestinal (GI) tract consist of? - Answer -stomach and intestines
What are the tissue layers of the digestive tract in order from external to internal? -
Answer -Serosa
Muscularis Externa
Submucosa
Mucosa
(Lumen inside mucosa)
HCl is produced by the ________ cells in the gastic glands of the gastric pits - Answer -
parietal
Which digestive structure is commonly called the "throat?" - Answer -pharynx
, Which digestive structure absorbs water and consolidates waste? - Answer -large
intestine
Which accessory organ produces secretions that moisten food? - Answer -salivary
gland
Which accessory organ stores bile? - Answer -gallbladder
In what digestive organ is the parietal cell located? - Answer -stomach
In what digestive organ is the acinar cell located? - Answer -pancreas
What structure separates the renal pyramids? - Answer -renal column
Which of the following is true about tubular reabsorption?
(a) It always involves active transport.
(b) It moves water and solute from the blood to the filtrate.
(c) It always happens via the paracellular route.
(d) It involves carrier-mediated transport. - Answer -(d) It involves carrier-mediated
transport.
Aldosterone antagonist drugs prevent aldosterone from having an effect at its receptors.
As a result __________. - Answer -more urine will be produced (Aldosterone
antagonists are diuretic drugs. Less Na+, and therefore less water reabsorption, results
in increased diuresis.)
Consuming alcohol inhibits the release of ADH. As a result __________. - Answer -
urine volume will increase
Most nutrients, such as glucose, are reabsorbed in the __________. - Answer -
proximal tubule (which is also responsible for the reabsorption of nearly 100% of
nutrients such as glucose, amino acids, and other organic substances)
Which structure travels through the spermatic cord? - Answer -ductus deferens
Which structure is the male copulatory organ? - Answer -penis
Which structure is the site of implantation? - Answer -uterus
Which term describes the female external genitalia? - Answer -vulva
What is spermatogenesis? - Answer -production of sperm
Where does oogenesis primarily occur? - Answer -ovary
