Joseph and Mary Academy
Rainbow Ave.,Pacita II, San Pedro Laguna
FOURTH MONTHLY EXAMINATION
SCIENCE 8
Name:_____________________ Yr. & Section:: _______________________
Teacher: Ms. Alyssa Mae F. Dapadap Parent's Signature: ___________________
MULTIPLE CHOICE: Encircle the BEST answer from the choices.
9. Which of the following is not an accessory organ
a-pancreas b-liver c-esophagus d-gallbladder
10. Which of the following is not a tissue layer of the alimentary canal
a-mucosa b-muscularis c-secretin d-serosa
11. Which sphincter is associated with the stomach
a-oddi b-pyloric c-internal involuntary d-external voluntary
12. Which is not a salivary gland
a-parotid gland b-sublingual gland c-maxillary gland d-submandibular gland
13. Which word does not belong with the liver
a-right lobe b-hepatocyte c-common bile duct d-hydrochloric acid
14. Each of the following organs is a component of the digestive tract except one. Identify the exception.
A) spleen B) esophagus C) stomach D) colon E) pharynx
15. Which of the following is an accessory organ of digestion?
A) esophagus B) colon C) pancreas D) spleen E) stomach
16. “Digestion”, alone, refers to the (very specific answer)
A) absorption of nutrients in the gut. B) progressive dehydration of indigestible residue.
C) input of food into the digestive tract. D) chemicall/mechanical breakdown of food.
17. Which of the following is NOT a digestive function?
A) filtration B) absorption C) mechanical processing D) ingestion E) compaction
18. The mucous epithelium is a component of the
A) muscularis. B) adventia. C) submucosa. D) mucosa. E)
serosa.
19. Contraction of the __________ layer of the intestinal wall functions to change the shape of the intestinal
lumen and moves food through its length.
A) mucosa B) submucosa C) adventitia D) serosa E) muscularis
20. Large blood vessels and lymphocytes are found in the
A) muscularis. B) mucosa. C) serosa. D) adventitia. E) submucosa.
21. Waves of muscular contractions that propel the contents of the digestive tract from one point to another
is/are
A) segmentations. B) mastications. C) pendulum D) peristalsis.
22. The functions occurring within the oral cavity include
A) analysis of material before swallowing and partial digestion of proteins and carbohydrates.
B) lubrication.
C) mechanical processing of food.
D) B and C only.
23. __________ types of salivary glands secrete into the oral cavity.
A) Five B) Three C) Four D) Two
24. Teeth are similar to bone and contain a mineralized matrix called
A) pulp. B) enamel. C) dentin. D) periodontium.
25. The crown of a tooth is covered by
A) pulp. B) dentin. C) cementum. D) enamel.
26. During swallowing,
A) the larynx elevates. B) the upper esophageal sphincter opens.
C) the soft palate elevates. D) the epiglottis closes.
27. Secretions from the salivary glands
A) are digestive enzymes. B) help to lubricate the oral cavity and its contents.
C) help to control bacterial populations in the mouth. D) do B and C only.
28. The __________ teeth are used for crushing or grinding food.
A) incisors B) molars C) bicuspids D) canines
29. The __________ are pointed teeth that are adapted for tearing and shredding.
A) incisors B) bicuspids C) molars D) cuspids teeth
30. There are ________ primary teeth and __________ permanent teeth
A) 20, 32 B) 32,20 C) 30, 20 D) 20, 30
31. The esophagus
A) is a muscular tube. B) extends from the oropharynx to the stomach.
C) functions in digestion of carbohydrates. D) has a thick lining that will tolerate stomach acid.
32. Functions of the stomach include
A) mechanical breakdown of food. B) storage of recently ingested food.
C) denaturation of proteins. D) initiation of protein digestion.
33. The portion of the stomach that connects to the esophagus is the
A) cardia. B) body. C) pylorus. D) fundus.
34. The bulge of the greater curvature of the stomach superior to the esophageal junction (or the big wheel) is
the
A) pylorus. B) fundus. C) antrum. D) cardia.
35. The large area of the stomach between the fundus and the J-curve, where most digestion occurs is the
A) pylorus. B) fundus. C) cardia. D) antrum.
36. The curved, tubular portion of the stomach is the
A) fundus. B) body. C) pylorus. D) cardia.
37. Gastric pits are
A) holes in the body of the stomach. B) located in the esophagus.
C) involved in absorption of liquids from the stomach. D) areas where proteins are digested.
38. The enzyme pepsin digests
A) vitamins. B) carbohydrates. C) proteins. D) lipids.
39. Plicae Circularis and intestinal villi
A) produce new cells for the mucosa of the small intestine.
B) carry products of digestion that will not pass through the walls of blood capillaries.
C) produce hormones to aid in digestion.
D) secrete digestive enzymes to aid in digestion.
40. The portion of the small intestine that is attached to the pylorus of the stomach is the
A) duodenum. B) colon. C) jejunum. D) ileum.
41. The middle portion of the small intestine is the
A) duodenum. B) jejunum. C) pylorus. D) ileum.
42. The portion of the small intestine that attaches to the large intestine is the
A) cecum. B) ileum. C) appendix. D) duodenum.
43. Intestinal hormone that stimulates the pancreas to release a watery secretion that is high in bicarbonate ion
is
A) enterocrinin. B) secretin. C) cholecystokinin (CCK) D) gastrin.
44. An intestinal hormone that stimulates the gall bladder to release bile is
A) secretin. B) cholecystokinin (CCK) C) GIP. D) gastrin.
45. The fusion of the hepatic duct with the cystic duct forms the
A) bile canaliculus. B) porta hepatis. C) common pancreatic duct.
D) common bile duct.
46. The human liver is composed of 4 lobes. Which is lobe is larger…(A) Right Lobe….(B) Left Lobe?
47. An enzyme that will digest proteins into polypeptides is
A) maltase. B) lipase. C) trypsin. D) amylase. E) nuclease.
48. The enzyme amylase helps to digest
A) carbohydrates. B) fats. C) proteins. D) lipids. E) nucleic acids.
49. During the cephalic phase of gastric secretion,
A) production of gastric juice slows down. B) secretin inhibits parietal and chief cell action.
C) the stomach responds to distention. D) the intestine reflex inhibits gastric emptying.
E) there is an increased flow of action potentials along the vagus nerve to the stomach.
50. Decreased levels of bile salts in the bile would interfere with
A) digestion of vitamins. B) fat digestion. C) protein digestion.
D) digestion of disaccharides. E) digestion of complex carbohydrates.
MATCHING: (Words may be used more than once or NOT at all)
A-CECUM B-EPIGLOTTIS C-PERISTALSIS D-12 FEET
E-CHYME AB-5 FEET AC-MASTICATION AD-PEYERS
PATCHES AE-GALLBLADDER BC-SALIVARY AMYLASE BD-20 FEET
BE-LIVER CD-BOLUS CE-GLOTTIS DE-
DUODENUM
52. Movement of food by a series of muscular contractions and relaxation
53. The ability to chew food is also known as…
54. This enzyme begins the chemical digestion of starchy foods
55. When swallowing food, first the soft palate rises so food won’t go up your nasal cavity then this structure
bends over to cover glottis
56. This is the material that is ready to enter the small intestine which was converted
by chemical & mechanical digestion into a semi-fluid paste of small food particles & gastric juice
57. This is the first section that the material hits after it has left the small intestine and has entered the large
intestine
58. This is how long the large intestine is in feet
59. The ileum is how long
60. This organs major function is to store and concentrate bile
61. This pouch-like structure is the first part of the large intestine
Match the structure of the digestive system with its function.
A. dehydration and compaction of indigestible materials in preparation
62. Pancreas for elimination
63. Liver B. secretion of bile (important for lipid digestion), storage of
64. Small Intestine nutrients, many other vital functions
65. Esophagus C. storage and concentration of bile
66. Gallbladder D. transport of materials to the stomach
67. Stomach E. secretion of buffers and digestive enzymes by exocrine cells;
secretion of hormones by endocrine cells
AB. mechanical processing, moistening, mixing with salivary secretions
AC. chemical breakdown of materials by acid and enzymes; mechanical
processing through muscular contractions
AD. secretion of lubricating fluid containing enzymes that break down
carbohydrates
AE. enzymatic digestion and absorption of water, organic substrates,
vitamins and ions
BC. pharyngeal muscles propel materials into esophagus
