WorksheetsDIGESTIVE MODULE
Total questions: 120
Worksheet time: 1hrs 1mins
It includes all those processes by which an animal takes in, digests, absorbs, stores, and uses food to meet its metabolic needs.
Nutrition
Digestion
Dillution
Absorption
It is the chemical and/or mechanical breakdown of food into particles that individual cells of an animal can absorb.
Note: Answer in CAPS only.
Digestion
Nutrition
Absorption
Respiration
It is needed in large quantities ( CHO, lipids, proteins ). Also used for energy production or as a source for the
“building blocks” of life
Note: Answer in CAPS only.
Macronutrients
Micronutrients
Cellular nutrients
DNA
Type of digestion that takes in whole food via diffusion and active transport
Intracellular
Extracellular
Phagocytosis
Macro-absorption
Type of digestion that refers to the enzymatic breakdown of large pieces of food into constituent molecules, usually in a special organ or cavity.
Intracellular
Extracellular
Phagocytosis
Macro-absorption
Type of digestion that is associated with larger animals.
Intracellular
Extracellular
Phagocytosis
Macro-absorption
Choose all animals that utilize Intracellular Digestion.
protozoa
decapods
sponges
enidarians
Type of Digestive structure that has a gut composed of a closed/blind sac with a singular opening for both entrance and exit.
Incomplete Digestive Tract
Complete Digestive Tract
Unimodular Digestive tract
Bimodular Digestive Tract
Type of Digestive structure that has a mouth as entrance for food & anus as exit for undigested food.
Incomplete Digestive Tract
Complete Digestive Tract
Unimodular Digestive tract
Bimodular Digestive Tract
In an incomplete digestive tract, what do you call the closed/blind sac that comprises the gut?
Gastrovascular cavity
Buccal Cavity
Digestive Cavity
Intestinal Node
Action of eating or taking in of food, followed by chewing & swallowing
Ingestion
Secretion
Digestion
Absorption
Defication
Referred to as the release of hormones, enzymes, & specific ions & chemicals that take part in digestion
Ingestion
Secretion
Digestion
Absorption
Defication
Referred to as the conversion of large nutrient particles or molecules into small particles or molecules.
Ingestion
Secretion
Digestion
Absorption
Defication
Referred to as the passage of usable nutrient molecules from the small intestine into the blood stream & lymphatic system for the final passage to body cells.
Ingestion
Secretion
Digestion
Absorption
Defication
Referred to as the elimination from the body of undigested & unabsorbed material as waste.
Ingestion
Secretion
Digestion
Absorption
Defication
It is the involuntary, sequential muscular contractions that move ingested nutrients along the digestive tract.
Peristalsis
Homeostasis
Buccal Activity
Ingestion-Muscle Movement (IMM)
Choose among the following ALL regions of the stomach.
Reception Region
Storage Region
Digestive & Absorption Region
Waste Secretion Region
The receiving chamber of food & as a ventilation chamber of lungs. (Motuh/Oral)
Buccal Cavity
Alimentary Canal
Pylorus
Pharynx
Which among the following are utilized for mechanical digestion?
Tounge
Teeth
Saliva
Pharynx
Which among the following is associated with enamel?
Tounge
Teeth
Saliva
Pharynx
Saliva moistens food into a wet lump of mass. What is this lump called?
Bollux
Bolus
Borne
Bolli
How many salivary glands are associated with digestion? (major glands)
3
5
4
no specified amount
Salivary amylase that initiates enzymic digestion.
Ptyalin
Chyme
Pepsin
Zymogen
Which of the following composes the Reception Region of the digestive system.
Buccal Cavity
Alimentary Canal
Lamina proporia
Uvulva
Short tube that serves as a common passageway for food & air. (Throat)
Pharynx
Larynx
Glottis
Bollux
The storage region of the digestive system mainly refers to what organ?
Stomach
Small Intestine
Large intestine
Liver
Muscular, distensible sac; an enlargement of the Gastrointestinal System
Stomach
Small Intestine
Large intestine
Liver
Referred to as the inactive form of protease stored in submucosa and activated at acid pH
Zymogen
Chyme
Pepsin
Ptyalin
It is a protease for initial digestion of protein
Zymogen
Chyme
Pepsin
Ptyalin
Semifluid mass of partially digested food
Zymogen
Chyme
Pepsin
Ptyalin
Which of the following are segments of the stomach?
Cardiac Region
Fundus
Pylorus
Ruga
Part of the the stomach that is anterior next to esophagus; regulates entry of food in stomach
Cardiac Region
Fundus
Pylorus
Ruga
(Body) Middle expanded part; site for storage and digestion.
Cardiac Region
Fundus
Pylorus
Ruga
It is the narrow posterior region of the stomach; secretes hormone gastrin w/c stimulates secretion of HCl and permits passage of chyme into the duodenum.
Cardiac Region
Fundus
Pylorus
Ruga
Referred to as the infoldings of the stomach (rugged appearance); increase the surface area for digestion
Cardiac Region
Fundus
Pylorus
Ruga
part of the Cardiac Region that is responsible for food entry regulation
Cardiac Depositor
Cardiac Filter
Cardiac Propeller
Cardiac Sphincter
Main actor of the Pyloric region/pylorus
Pyloric Depositor
Pyloric Filter
Pyloric Propeller
Pyloric Sphincter
Part of ruga: with gastric pits that lead to gastric glands
Mucosa
Lamina Propria
Muscularis mucosae/internee
Foula
Part of ruga: dense connective tissue between gastric glands that secretes gastric juices.
Mucosa
Lamina Propria
Muscularis mucosae/internee
Foula
Part of ruga: with inner circular and outer longitudinal muscles for contraction to discharge gastric juice
Mucosa
Lamina Propria
Muscularis mucosae/internee
Foula
Part of ruga: mainly associated blood vessels and nerves
Submucosa
Tunica muscularis/muscularis externa
Serosa/Adventitia
Foula
Part of ruga: circular, longitudinal, and inner oblique layer
Submucosa
Tunica muscularis/muscularis externa
Serosa/Adventitia
Foula
Part of ruga: no distinguishing feature
Submucosa
Tunica muscularis/muscularis externa
Serosa/Adventitia
Foula
The midgut/small intestine is the coiled portion of the alimentary canal
True
False
The small intestine is smaller in diameter but longer in length than the large intestine.
True
False
The Human Digestive Region has three parts while the frog only has two. Which of the following is the lacking segment of the frog?
Duodenum
Jejunum
Ileum
None, because the frog has the same parts as a human
Part of the Digestive region: short, wider anterior portion where most digestion takes place (complete digestion of proteins and carbohydrates, partial digestion of lipids)
Duodenum
Jejunum
Ileum
Lesser Omentum
Part of the Digestive region: next to the duodenum; absent in frog; also site for absorption
Duodenum
Jejunum
Ileum
Lesser Omentum
Part of the Digestive region: longer, narrower posterior position where most absorption takes place
Duodenum
Jejunum
Ileum
Lesser Omentum
Part of the Digestive region: connects the duodenum, stomach, and liver
Duodenum
Jejunum
Ileum
Lesser Omentum
What finger-like structures increase the surface area for absorption in the small intestine?
Alveoli
Villi
Papillae
Cilia
What type of epithelium lines the mucosa of the small intestine?
Stratified squamous
Simple cuboidal
Simple columnar
Transitional
Which cells in the mucosa secrete mucin?
Chief cells
Parietal cells
Goblet cells
Islet cells
What does the submucosa of the small intestine mainly contain
Loose connective tissue
Dense connective tissue
Cartilage
Smooth muscle
The plica circularis in the submucosa are also known as what?
Folds of Kerckring
Folds of Lieberkühn
Folds of Henle
Folds of Bowman
Which layer of the small intestine contains both circular and longitudinal smooth
Serosa
Mucosa
Muscularis
Submucosa
What type of muscle is the inner layer of the muscularis?
Longitudinal and thinner
Circular and thicker
Skeletal and voluntary
Random and sparse
What type of tissue makes up the outermost layer of the small intestine?
Dense connective tissue
Loose connective tissue and simple squamous epithelium
Fibrocartilage
Keratinized epithelium
What is the serosa of the small intestine primarily composed of?
Collagen only
Simple squamous epithelium and connective tissue
Smooth muscle
Elastic fibers
Which of the following layers directly aids in nutrient absorption?
Submucosa
Serosa
Mucosa
Muscularis
How many alkaline juices does chyme meet in the duodenum?
One
Two
Three
Four
Which of the following is not an alkaline juice in the duodenum?
Bile
Pancreatic juice
Intestinal juice
Gastric juice
Which organ secretes bile?
Pancreas
Gallbladder
Liver
Stomach
What is the main function of bile?
To digest proteins
To emulsify fats
To absorb amino acids
To digest carbohydrates
What is the purpose of bile salts?
Increase acidity
Prevent clumping of fat droplets
Neutralize acids
Absorb water
What does pancreatic juice contain?
Only bile salts
Only acids
Enzymes
Mucus
Which juice is also known as succus entericus?
Pancreatic juice
Bile
Intestinal juice
Gastric juice
What secretes intestinal juice?
Mucous glands
Pancreatic cells
Liver cells
Gallbladder lining
What is the end product of carbohydrate digestion?
Amino acids
Fatty acids
Monosaccharides
Polysaccharides
Which enzymes digest proteins?
Lipase
Carbohydrase
Protease
Amylase
Which of the following are examples of proteases?
Lipase and pepsin
Trypsin and chymotrypsin
Amylase and maltase
Sucrase and lactase
What is the end product of protein digestion?
Amino acids
Monosaccharides
Fatty acids
Peptides
Which enzymes digest fats and lipids?
Protease
Carbohydrase
Lipase
Peptidase
What are the end products of lipid digestion?
Amino acids and glucose
Monosaccharides and maltose
Fatty acids and glycerol
Peptides and nucleotides
Absorption in the jejunum and ileum occurs through what general process?
Osmosis only
Transport mechanisms
Filtration
Secretion
Which type of transport allows fatty acids and glycerol to passively enter cells?
Facilitated diffusion
Osmosis
Simple diffusion
Active transport
Fatty acids and glycerol are absorbed through what structures?
Blood capillaries
Lacteals of villi
Pancreatic ducts
Hepatic veins
Lacteals lead absorbed fats into which system?
Circulatory system
Lymphatic system
Digestive system
Excretory system
What type of transport requires energy and carrier proteins?
Passive transport
Active transport
Diffusion
Osmosis
Active transport of amino acids and monosaccharides is an example of what process?
Primary active transport
Osmosis
Secondary active transport
Passive diffusion
Where are amino acids and monosaccharides absorbed?
Blood capillaries in villi
Lacteals
Pancreatic ducts
Hepatic veins
What molecules are absorbed via active transport?
Fatty acids and glycerol
Amino acids and monosaccharide
Vitamins and minerals only
Lipids only
Which section of the small intestine absorbs the most nutrients?
Duodenum
Jejunum
Ileum
Colon
What is another name for the large intestine in humans?
Cloaca
Colon
Duodenum
Jejunum
The large intestine is located posterior to which organ?
Liver
Stomach
Ileum
Pancreas
What is the main function of the large intestine?
Digestion of fats
Absorption of nutrients
Temporary storage of undigested particles
Secretion of enzymes
What are the undigested particles temporarily stored in the large intestine called?
Bolus
Chyme
Digesta
Egesta
What percentage of water is absorbed in the large intestine?
20%
50%
80%
100%
What substances are reabsorbed in the large intestine of lower vertebrates?
Proteins and fats
Electrolytes and water
Glucose and amino acids
Lipids and bile salts
What type of microorganisms help digest mucus in the food entering the large intestine?
Bacteria
Protozoa
Algae
Fungi
What is the cloaca found in frogs?
Storage chamber for bile
Short tube following the rectum
Part of the pancreas
Region of the small intestine
What is the cloacal opening also known as?
Anus or vent
Rectum
Colon
Ileum
What material is discharged through the cloacal opening?
Urine
Egesta
Bile
Chyme
Which organ produces and secretes bile?
Pancreas
Liver
Gallbladder
Stomach
What is the color and general appearance of the liver?
Pale yellow and soft
Greenish gray and flat
Reddish brown and two-lobed
White and fibrous
Through what ducts does bile flow out of the liver?
Hepatic ducts
Pancreatic ducts
Bile ducts only
Intestinal ducts
What is the main function of the gallbladder?
Produce bile
Store bile from the liver
Digest proteins
Absorb lipids
What is the shape of the gallbladder?
Cylindrical
Tubular
Spherical sac
Triangular pouch
What organ secretes pancreatic juice?
Pancreas
Liver
Gallbladder
Small intestine
What is the color and structure of the pancreas?
Reddish brown, lobed
Oblong, creamy white or yellowish
Flat, greenish
Cylindrical, transparent
Where is the pancreas located?
Within the gastro-duodenal omentum
Beneath the liver
Attached to the gallbladder
Along the colon
Through what duct does pancreatic juice flow?
Intestinal duct
Hepatic duct
Bile duct
Cloacal duct
Which of the following is not a salivary gland?
Parotid gland
Sublingual gland
Submandibular gland
Gastric gland
What are animals that remain in one place and continuously filter food particles called?
Discontinuous feeders
Continuous feeders
Fluid feeders
Deposit feeders
Continuous feeders are typically what type of animals?
Fast-moving predators
Slow-moving or sessile
Aerial hunters
Herbivorous grazers
Tube worms and barnacles are examples of what type of feeders?
Suspension feeders
Continuous feeders
Deposit feeders
Fluid feeders
Which type of feeders are active and highly mobile animals?
Continuous feeders
Discontinuous feeders
Suspension feeders
Fluid feeders
Discontinuous feeders are usually what types of animals?
Sessile organisms
Carnivores and herbivores
Filter feeders
Omnivorous worms
What do suspension feeders remove from water?
Dissolved gases
Suspended food particles
Minerals
Nutrients from sediment
Sponges and many crustaceans are examples of what type of feeders?
Deposit feeders
Suspension feeders
Continuous feeders
Fluid feeders
What type of feeders obtain nutrients from muds, sands, or soils?
Suspension feeders
Fluid feeders
Deposit feeders
Continuous feeders
Earthworms and sea cucumbers are examples of what type of feeders?
Fluid feeders
Deposit feeders
Suspension feeders
Continuous feeders
What type of feeders feed on biological fluids like blood or nectar?
Deposit feeders
Fluid feeders
Suspension feeders
Continuous feeders
Which of the following is an example of a fluid feeder?
Butterfly
Earthworm
Barnacle
Clam
What is the feeding strategy that involves consumption of plants?
Predation
Herbivory
Suspension feeding
Deposit feeding
Herbivory requires which physical adaptation?
Fangs and claws
Teeth, radula, or mandibles
Filtering tentacles
Suction cups
What is the capture of live prey called?
Suspension feeding
Fluid feeding
Predation
Deposit feeding
Which animals are examples of predators in the following list?
Octopus, squid, shrimp, crab
Worms, clams, and sponges
Barnacles and sea cucumbers
Butterflies and aphids
What is the process of directly absorbing nutrients from external mediums called?
Herbivory
Predation
Surface nutrient absorption
Suspension feeding
Surface nutrient absorption is common in which organisms?
Endoparasitic protozoa and cestodes
Birds and mammals
Arthropods and annelids
Mollusks and echinoderms
