Bio 151 Exam 3 / Bio 151 Human Anatomy And Physiology Exam
BIO 151 EXAM 3 / BIO 151 HUMAN ANATOMY AND PHYSIOLOGY
EXAM 3 TEST BANK COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS |ALREADY GRADED A+
What kind of muscle tissue is found lining the walls of many internal organs such as blood
vessels and the digestive tract?
A) intestinal muscle
B) smooth muscle
C) skeletal muscle
D) cardiac muscle - ANSWER-smooth muscle
Which of the following mammals most likely produces the most concentrated urine?
A) desert kangaroo rats
B) humans
C) dolphins
D) chimps - ANSWER-desert kangaroo rats
An advantage of nitrogenous wastes as urea rather than as ammonia is that
A) urea can be exchanged for Na+
B) urea is less toxic than ammonia
C) urea requires more water for excretion than ammonia
D) urea doesn't affect the osmolarity gradient
E) less nitrogen is removed from the body - ANSWER-urea is less toxic than ammonia
A necropsy of a marine star that died after it was mistakenly placed in fresh water would likely
show that it died because
1|Page
, Bio 151 Exam 3 / Bio 151 Human Anatomy And Physiology Exam
A) it was stressed and needed more time to acclimate to new conditions
B) it was so hyperosmotic to the fresh water that it could not osmoregulate
C) its kidneys could not handle the change in ionic content presented by the fresh water
D) it had an immediate movement of water out of its cells after being placed in fresh water -
ANSWER-it was so hyperosmotic to the fresh water that it could not osmoregulate
The fluid with the highest osmolarity is
A) fresh water
B) plasma in birds
C) plasma in a marine animal
D) seawater in a tidal pool
E) plasma in terrestrial reptiles - ANSWER-seawater in a tidal pool
How do marine fish perform osmoregulation?
A) through gaining water through gills
B) through gaining salt through gills
C) through drinking water and eating food
D) through excreting large amounts of dilute urine - ANSWER-through drinking water and eating
food
Animals that migrate great distances would obtain the greatest energetic benefit from storing
chemical energy as
A) proteins
B) fats
C) nucleic acids
D) carbohydrates - ANSWER-fats
2|Page
, Bio 151 Exam 3 / Bio 151 Human Anatomy And Physiology Exam
Certain nutrients are considered "essential" in the diets of some animals because
A) only animals use those nutrients
B) nutrients are subunits of important polymers
C) they are required for animal diets, but these animals are not able to synthesize the nutrients
D) nutrients are necessary coenzymes
E) only certain foods contain them - ANSWER-they are required for animal diets, but these
animals are not able to synthesize the nutrients
The small intestine has a very large surface area that directly facilitates high rates of
A) digestion
B) absorption
C) elimination
D) filtration - ANSWER-absorption
Carbohydrate digestion yields monosaccharides whereas protein digestion yields amino acids.
Both digestive processes:
A) are catalyzed by the same enzyme
B) are types of hydrolysis rxns
C) require the presence of hydrochloric acid to lower the pH
D) require ATP as an energy source - ANSWER-are types of hydrolysis rxns
What groups of animals has relatively long cacae?
A) carnivores
B) herbivores
C) omnivores
D) autotrophs - ANSWER-herbivores
3|Page
, Bio 151 Exam 3 / Bio 151 Human Anatomy And Physiology Exam
The box jellyfish is a carnivore that feeds on other fish, crustaceans, and plankton and contains
a gastrovascular cavity. Suppose a box jellyfish had a mutation in its genome such that it could
not secrete any molecules from its gland cells. What biological process would this box jellyfish
have difficulty performing?
A) ingesting prey into its mouth
B) eliminating undigested food out of its mouth
C) engulfment of food particles by vacuoles
D) digestion of food into smaller molecules - ANSWER-digestion of food into smaller molecules
Salivary amylase digests
A) protein
B) starches
C) monosaccharides
D) glucose - ANSWER-starches
What happens during peristalsis in the digestive system?
A) Fat is emulsified in small intestine
B) Rectal sphincters are voluntarily controlled to regulate defecation
C) Nutrients get transported to liver through hepatic portal vein
D) Smooth muscle contracts to move food along the alimentary canal - ANSWER-Smooth muscle
contracts to move food along the alimentary canal
Which enzyme has high activity in acidic environments?
A) amylase
B) pepsin
C) gastrin
4|Page
BIO 151 EXAM 3 / BIO 151 HUMAN ANATOMY AND PHYSIOLOGY
EXAM 3 TEST BANK COMPLETE 300 QUESTIONS AND CORRECT
DETAILED ANSWERS |ALREADY GRADED A+
What kind of muscle tissue is found lining the walls of many internal organs such as blood
vessels and the digestive tract?
A) intestinal muscle
B) smooth muscle
C) skeletal muscle
D) cardiac muscle - ANSWER-smooth muscle
Which of the following mammals most likely produces the most concentrated urine?
A) desert kangaroo rats
B) humans
C) dolphins
D) chimps - ANSWER-desert kangaroo rats
An advantage of nitrogenous wastes as urea rather than as ammonia is that
A) urea can be exchanged for Na+
B) urea is less toxic than ammonia
C) urea requires more water for excretion than ammonia
D) urea doesn't affect the osmolarity gradient
E) less nitrogen is removed from the body - ANSWER-urea is less toxic than ammonia
A necropsy of a marine star that died after it was mistakenly placed in fresh water would likely
show that it died because
1|Page
, Bio 151 Exam 3 / Bio 151 Human Anatomy And Physiology Exam
A) it was stressed and needed more time to acclimate to new conditions
B) it was so hyperosmotic to the fresh water that it could not osmoregulate
C) its kidneys could not handle the change in ionic content presented by the fresh water
D) it had an immediate movement of water out of its cells after being placed in fresh water -
ANSWER-it was so hyperosmotic to the fresh water that it could not osmoregulate
The fluid with the highest osmolarity is
A) fresh water
B) plasma in birds
C) plasma in a marine animal
D) seawater in a tidal pool
E) plasma in terrestrial reptiles - ANSWER-seawater in a tidal pool
How do marine fish perform osmoregulation?
A) through gaining water through gills
B) through gaining salt through gills
C) through drinking water and eating food
D) through excreting large amounts of dilute urine - ANSWER-through drinking water and eating
food
Animals that migrate great distances would obtain the greatest energetic benefit from storing
chemical energy as
A) proteins
B) fats
C) nucleic acids
D) carbohydrates - ANSWER-fats
2|Page
, Bio 151 Exam 3 / Bio 151 Human Anatomy And Physiology Exam
Certain nutrients are considered "essential" in the diets of some animals because
A) only animals use those nutrients
B) nutrients are subunits of important polymers
C) they are required for animal diets, but these animals are not able to synthesize the nutrients
D) nutrients are necessary coenzymes
E) only certain foods contain them - ANSWER-they are required for animal diets, but these
animals are not able to synthesize the nutrients
The small intestine has a very large surface area that directly facilitates high rates of
A) digestion
B) absorption
C) elimination
D) filtration - ANSWER-absorption
Carbohydrate digestion yields monosaccharides whereas protein digestion yields amino acids.
Both digestive processes:
A) are catalyzed by the same enzyme
B) are types of hydrolysis rxns
C) require the presence of hydrochloric acid to lower the pH
D) require ATP as an energy source - ANSWER-are types of hydrolysis rxns
What groups of animals has relatively long cacae?
A) carnivores
B) herbivores
C) omnivores
D) autotrophs - ANSWER-herbivores
3|Page
, Bio 151 Exam 3 / Bio 151 Human Anatomy And Physiology Exam
The box jellyfish is a carnivore that feeds on other fish, crustaceans, and plankton and contains
a gastrovascular cavity. Suppose a box jellyfish had a mutation in its genome such that it could
not secrete any molecules from its gland cells. What biological process would this box jellyfish
have difficulty performing?
A) ingesting prey into its mouth
B) eliminating undigested food out of its mouth
C) engulfment of food particles by vacuoles
D) digestion of food into smaller molecules - ANSWER-digestion of food into smaller molecules
Salivary amylase digests
A) protein
B) starches
C) monosaccharides
D) glucose - ANSWER-starches
What happens during peristalsis in the digestive system?
A) Fat is emulsified in small intestine
B) Rectal sphincters are voluntarily controlled to regulate defecation
C) Nutrients get transported to liver through hepatic portal vein
D) Smooth muscle contracts to move food along the alimentary canal - ANSWER-Smooth muscle
contracts to move food along the alimentary canal
Which enzyme has high activity in acidic environments?
A) amylase
B) pepsin
C) gastrin
4|Page
