Biology Exam 4-part2 Ch21
To prepare for exam
- 1.Bile produced in the liver is stored in the _______ before entering the intestine.
- A.
Blood
- B.
Pancreas
- C.
Gallbladder
- D.
Intestinal wall
- E.
Common bile duct
- 2.Which of the following nutrients is digested only after it reaches the small intestines?
- A.
Protein
- B.
Complex carbohydrate
- C.
Fat
- 3.Nutrients absorbed by the intestines move directly to the liver, which
- A.
Converts glucose to alcohol
- B.
Converts the nutrients into monomers
- C.
Manages the amount of glucose that is converted to polysaccharides
- D.
Converts excess glucose to glycogen
- 4.Absorption of water is a major function of the
- A.
Colon
- B.
Esophagus
- C.
Cecum
- D.
Appendix
- E.
Rectum
- 5.Which of the following statements regarding animal digestive systems is false?
- A.
Prokaryotes in the colon and cecum digest plant material
- B.
We expect that an herbivore will have a longer alimentary canal than a carnivore of similar body size.
- C.
Meat is more difficult to digest than vegetable matter because of its protein content
- D.
Many herbivorous animals have cellulose-digesting microbes in their colon and cecum.
- E.
Rumination helps to soften and break down plant fibers, making them more accessible to digestion by microbes.
- 6.Lions are not always successful hunters, and may go days between meals. What evolutionary adaptation helps the lion survive periods of famine?
- A.
An expandable stomach
- B.
Formation of a two-chambered stomach
- C.
Production of amylase
- D.
An extended cecum
- E.
A rich microbial flora in the colon
- 7.Interestingly, most herbivorous animals do not have the ability to digest the cellulose in plants. However, in the absence of this ability, they have evolved a mechanism that allows them to survive despite eating only plant matter, namely A) converting cellulose to other carbohydrates.
- A.
Converting cellulose to other carbohydrates
- B.
Production of saliva containing amylase
- C.
Drinking large volumes of water
- D.
Digestion by symbiotic microorganisms
- E.
Avoidance of platns containing cellulose
- 8.The rate of energy consumption by the body is called
- A.
Glycolsis
- B.
Metabolism
- C.
Metabolic rate
- D.
Digestion
- E.
Consumption
- 9.Organisms suffering from malnourishment have a diet deficient in
- A.
Calories
- B.
One or more essential nutrients
- C.
Protein
- D.
Water
- E.
Bile and acids needed for digestion
- 10.Essential fatty acids, which are required in the human diet, are
- A.
Stored in the gallbladder
- B.
Required in order to synthesize most vitamins
- C.
The fatty acids that humans can synthesize from simpler molecules.
- D.
The fatty acids used in the construction of the phospholipids of cell membranes.
- E.
Those fatty acids that humans are unable to synthesize.
- 11.Vegetarians who rely upon a single type of plant food
- A.
May become protein-deficient
- B.
May become severely dehydrated
- C.
Run the risk of depleting their liver of glycogen
- D.
Are soon unalbe to produce sufficicnet quantities of bile
- E.
Live longer than people who ingest animal protein
- 12.Which of the following vitamins is fat-soluable and consequently, can be stored in body fat?
- A.
Pyridoxine
- B.
Pantothenic acid
- C.
Biotin
- D.
K
- E.
Niacin
- 13.Which of the following statements regarding vitamins is true?
- A.
They must be ingested in large quantities.
- B.
They lower the activation energy required for biochemical reactions.
- C.
They can serve as coenzymes or parts of coenzymes.
- D.
They are major sources of dietary calories.
- E.
They are simple inorganic compounds.
- 14.If a person on a fad diet experiences muscle cramps and reduced appetite, a physician would suspect that this individual is likely suffering from a deficiency of
- A.
Table salt
- B.
Zinc
- C.
Calcium
- D.
Iodine
- E.
Iron
- 15.Which of the following diseases is associated with obesity?
- A.
Cardiovascular disease
- B.
Chicken pox
- C.
Cancer
- D.
Rheumatoid arthritis
- E.
Multiple sclerosis
- 16.To reduce the risk of cancer, it has been suggested that a diet high in ________ is beneficial.
- A.
Moldy foods
- B.
Antioxidants
- C.
Red meat
- D.
Cured and smoked foods
- E.
Bacon
- 17.While the chyme is in the stomach _______ is converted to ______ in the presence of ________.
- A.
Pepsiogen,pepsin, HCL
- B.
Pepsin, HCL, Pepsinogen
- C.
Amylase, HCL, pepsin
- D.
Amylase, maltose, HCL
- 18.The formation of pepsin in the stomach is an example of ____________________________
- A.
Positive feedback mechanism
- B.
Negative feedback mechanism
- C.
Acid-base reaction
- D.
Emulsification
- 19._______________________is not the function of liver
- A.
Scretes insulin
- B.
Produces bile juice
- C.
Converts glucose to glycogen
- D.
Converts toxic ammonia into urea
- 20.Which of the following is not true
- A.
Lipase converts fat into fatty acid and glycerol
- B.
Pepsin converts protein into amino acids
- C.
Amylase converts polysccharides into glucose
- D.
Amylase converts lipids into fatty acid and glycerol
- 21.Chewing bread in mouth gives a sweet taste because
- A.
Amylase in saliva converts starch into glucose
- B.
Lipase converts fat into fatty acid and glycerol
- C.
Pepsin converts protein into amino acids
- D.
Trypsin converts protein into amino acids
- 22.Which of the follwing is related to the inflamation of the portion at the junction of small and large intestine?
- A.
Appendicitis
- B.
Gastric ulcer
- C.
Constipation
- D.
Heart burn
- E.
Diahoea
- 23.Rabbits have a simple stomach and large cecum, they sometime eat their feces because
- A.
Their sense of distinguishing food from feces is poor
- B.
Partially digested food in their cecum is eliminated and it still comtains a lot of nutrients.
- C.
They have symbiotic microbes in the cecum.
- D.
They are rumminant mammals.
- 24.The bilejuice involved conversion of huge lump of fat into droplets of fat is called
- A.
Emulsification
- B.
Peristlasis
- C.
Lipase
- D.
Fatty acids and glyceral
Questions: 62 | Attempts: 5465 | Last updated: Mar 22, 2022
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