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WorksheetsDigestive system Lecture #3 Exam review
Total questions: 30
Worksheet time: 15mins
Digestion is _____.
Movement of food
Breakdown of complex molecules
Absorption of vitamins only
Gas exchange
Peristalsis is _____.
Mixing of food
Backward movement of food
Rhythmic propulsion of food
Enzyme secretion
Segmentation is _____.
Backflow prevention
Mixing food with digestive juices
Absorption of nutrients
Acid secretion
Which papillae contain the most taste buds?
Fungiform
Filiform
Circumvillate
Both A and C
What is the main digestive enzyme in saliva?
Pepsin
Trypsin
Salivary amylase
Lipase
What are the two secretory cell types in salivary glands?
Endocrine and exocrine
Parietal and chief
Serous and mucus
Alpha and beta
Primary/baby teeth dentition contains how many teeth?
16
20
24
32
Adult teeth is composed of how many teeth?
16
20
24
32
Chyme is formed in the _____.
Mouth
Esophagus
Stomach
Colon
The stomach primarily digests _____.
Carbohydrates
Fats
Proteins
Nucleic acids
Intrinsic factor is produced by _____.
Chief cells
Mucus cells
Parietal cells
G cells
Pepsinogen is produced by _____.
Parietal cells
Chief cells
Enteroendocrine cells
Goblet cells
Main gastric enzyme that digests protein is _____.
Amylase
Pepsin
Lipase
Trypsin
Vitamin that requires intrinsic factor for absorption?
Vitamin B12
Vitamin A
Vitamin D
Vitamin C
Gastrin stimulates _____.
Inhibition of digestion
HCl secretion and gastric emptying
Water absorption
Bile storage
Cholecystokinin is released in response to _____.
Protein entering stomach
Fats entering small intestine
Low blood sugar
Large intestine stretching
Excessive vomiting causes blood pH to _____.
Decrease
Stay the same
Increase
Fluctuate randomly
What structure increases small intestine absorption?
Rugae
Microvilli
Lacteals
Taenia coli
What is the primary function of lacteals in the small intestine?
Absorb amino acids
Absorb dietary fats
produce digestive enzymes
neutralize stomach acid
Goblet cells secrete _____
Enzymes
Hormones
Mucus
Bile
Paneth cells secrete _____.
Antimicrobials
HCl
Mucus
Bile salts
Main functions of the liver include all EXCEPT:
Producing bile
Storing vitamins
Detoxification
Producing digestive enzymes for the stomach
Hepatocytes function to _____.
Produce pepsin
Store bile in gallbladder
Metabolize nutrients and produce bile
Release hormones
Bile functions to _____.
Digest proteins
Emulsify fats
Absorb glucose
Neutralize acid
Enzyme: Lipase digests _____.
Carbs
Proteins
Nucleic acids
Fats
Maltase digests _____.
Sucrose
Glucose
Maltose
Lactose
Pancreatic amylase digests _____.
Carbohydrates
Proteins
Fats
DNA
Large intestine bacteria produce _____.
Vitamin A
Vitamin D
Vitamin K and some B vitamins
Vitamin E
Peyer’s patches prevent _____.
Ulcers
Bacteria from entering bloodstream
Acid reflux
Enzyme decay
What is the primary role of Kupffer cells located in the sinusoids of a liver lobule?
Producing bile salts for fat digestion
Storing glucose as glycogen
Filtering the blood by removing pathogens and worn-out red blood cells
Transporting bile to the gallbladder
