Anatomy and Physiology Quiz 8
7) The pancreas produces ________ -digesting enzymes in the form of proteolytic enzymes. A) carbohydrate B) protein C) sugar D) lipid E) nucleic acid
B
19) Glycolytic breakdown of glucose first results in ________ molecules. A) 2 pyruvate B) 4 NADH C) 4 ATP D) 2 CO2 E) 2 H2O
A
23) The citric acid cycle A) begins with the formation of a molecule of citric acid. B) directly produces most of the ATP from the catabolism of glucose. C) consumes two moles of carbon dioxide. D) contains enzymes called cytochromes. E) forms acetyl-CoA from glucose-6-phosphate.
A
9) Tom has hepatitis, an inflammation of the liver. Which of the following symptoms would you expect to observe in Tom? A) jaundice B) elevated levels of blood glucose C) impaired digestion of protein D) blood in the feces E) overproduction of blood plasma albumin
A
13) During lipolysis, A) triglycerides are converted into molecules of acetyl-CoA. B) triglycerides are broken down into glycerol and fatty acids. C) lipids are converted into glucose molecules. D) lipids are formed from excess carbohydrates. E) lipids are metabolized to yield ATP.
B
20) Although other nutrients can feed into the citric acid cycle, ________ yields energy the quickest. A) glycogen B) glucose C) protein D) fat
B
25) All of the following are reasons why glucose is the primary energy source for cells except A) glucose is a small, soluble molecule. B) glycogen breakdown occurs very slowly. C) glucose can be stored efficiently. D) glycogen breakdown involves only a single enzymatic step. E) glycolysis does not require oxygen to generate ATP.
B
3) Blockage of the common hepatic duct would interfere with digestion of A) proteins. B) fats. C) disaccharides. D) complex carbohydrates. E) vitamins.
B
5) Bile salts break lipids apart in a process called A) ingestion. B) emulsification. C) absorption. D) deglutition. E) the alkaline tide.
B
1) ________ pair(s) of salivary glands secrete into the oral cavity. A) One B) Two C) Three D) Four
C
11) Which of the following is not a component of the portal triad found at the edges of a liver lobule? A) hepatic artery B) bile duct C) central vein D) hepatic portal vein E) None of the answers is correct; all are present in the portal triad.
C
12) Metabolism can be defined as A) anabolism - catabolism. B) catabolism - anabolism. C) anabolism + catabolism. D) anabolism + heat. E) heat - catabolism.
C
2) Which is not a component of saliva? A) Lysozyme B) Amylase C) Hydrochloric acid D) Mucus
C
21) Increased secretion by all the salivary glands results from A) sympathetic stimulation. B) hormonal stimulation. C) parasympathetic stimulation. D) myenteric reflexes. E) hunger.
C
8) The exocrine portion of the pancreas is composed of A) pancreatic islets. B) pancreatic crypts. C) pancreatic acini. D) pancreatic lobules. E) triads.
C
10) A viral infection that often involves the parotid glands, which swell noticeably, is A) gastric ulceration. B) hepatitis. C) cirrhosis. D) mumps. E) HIV.
D
14) The process of synthesizing glucose from non-carbohydrates is called A) glycogenolysis. B) glycogenesis. C) glycolysis. D) gluconeogenesis. E) glucose reclamation.
D
15) Glycolysis breaks down glucose into what? A) citric acid B) NAD•H C) glutaraldehyde D) pyruvate E) phosphate
D
16) The human liver is composed of ________ lobe(s). A) one B) two C) three D) four E) two large and four small
D
24) Cells perform catabolism to generate ATP, which can be used for all of the following except A) muscle contraction. B) ion transport. C) protein synthesis. D) glycogen synthesis. E) diffusion.
E
6) The sum of all of the biochemical processes going on within the human body at any given time is called A) glycolysis. B) oxidative phosphorylation. C) catabolism. D) anabolism. E) metabolism.
E
17) All of the following is true of the electron transport system except A) receives electrons from coenzymes. B) produces energy that supports the synthesis of ATP. C) is found on the inner mitochondrial membrane (the cristae). D) is found on the outer mitochondrial membrane. E) electrons are eventually accepted by oxygen with the formation of water.
D
18) What is a nutrient pool? A) a general term for vitamins and minerals together B) the metabolic reserves of the body as a whole C) the region in the mitochondria where hydrogen atoms are removed from organic molecules D) an accessible source of substrates for a cell E) an alternative term for a bolus of food in the digestive system
D
22) Poisons like cyanide bind to ________ and prevent electron transfer. A) enzymes B) the endoplasmic reticulum C) acetyl-CoA D) cytochromes E) mitochondria
D
4) Which one is false? A) Producing blood cells is not a function of the adult liver. B) The parotid gland empties into the oral cavity at the level of the second upper molar. C) The structure that marks the division between the right and left lobes of the liver is the falciform ligament. D) Kupffer cells are arranged within a lobule of the liver into a series of plates converging toward a central vein.
D
