With a gastrovascular cavity... A. Digestion is both extra-oral and intracellular B. Food enters and waste exits via different openings C. There is regional specialization for specific functions to increase the efficiency of digestion D. Nutrients diffuse directly to the animal's tissues from the gastrovascular cavity, which extends to most parts of the animal's body E. All of the above

With a gastrovascular cavity... A. Digestion is both extra-oral and intracellular B. Food enters and waste exits via different openings C. There is regional specialization for specific functions to increase the efficiency of digestion D. Nutrients diffuse directly to the animal's tissues from the gastrovascular cavity, which extends to most parts of the animal's body E. All of the above

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter23: The Digestive System

Section: Chapter Questions

Problem 2ILQ: Visit this site (http://openstaxcollege.org/l/fooddigestion2) for an overview of digestion of food...

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Visit this site (http://openstaxcollege.org/l/fooddigestion2) for an overview of digestion of food in different regions of the digestive tract. Note the route of non-fat nutrients from the small intestine to their release as nutrients to the body.
Figure 34.11 Which of the following statements about the digestive system is false? Chyme is a mixture of food and digestive juices that is produced in the stomach. Food enters the large intestine before the small intestine. In the small intestine, chyme mixes with bile, which emulsifies fats. The stomach is separated from the small intestine by the pylloric sphincter.
Watch this animation (http://openstaxcollege.org/l/sintestine) that depicts the structure of the small intestine, and, in particular, the villi. Epithelial cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems. In the small intestine, the products of food digestion are absorbed by different structures in the villi. Which structure absorbs and transports fats?
In the stomach:a. muscles churn and mix the food with acids and enzymesb. glands make 3 quarts of digestive juices each dayc. food leaves as a thick liquid called chymed. all of the above
Which of the following stimuli activates sensors in thewalls of digestive organs?a. breakdown products of digestionb. distensionc. pH of chymed. all of the above
During the process of absorption, nutrients from food go from:a. the intestines into the bladderb. the blood into the organsc. the intestines into the bloodstreamd. the mouth into the stomach
Most of the water and K+ passed from the insect’s Malphigian tubules into the digestive system is reabsorbed through the A. RectumB. MidgutC. IntestineD. Foregut
In the figure, cells of the secrete HCI, which Pepsinogen Pepsin HCI Lumen a. small intestine epithelium; keeps pepsin in its inactive form so the cells themselves are not digested O b. stomach epithelium; activates pepsinogen to form pepsin O c. pancreas; activates pepsinogen to form pepsin d. stomach submucosa; causes a low pH that activates pepsin е. pancreas epithelium; causes high acidity in the stomach, activating pepsinogen as a digestive enzyme
Which is NOT a correct association of ruminant stomach organ and its function? O rumen-first chamber where cud is formed O omasum-water, soluble food, and microbial products are absorbed O abomasum-true acid stomach with proteolytic enzymes O reticulum-final chamber where undigested pulp is stored for disposal O All of the choices are correct ruminant associations.
Explain in your own words: What are the unique anatomical structures observed in birds to carry out thefunctions of digestion? Elaborate on these unique structures and provide reasons for theappearance of these unique structures.
1. Small intestine vs Large intestine > Compare the two when it comes to function. Compare different vertebrates, 2 examples and include 1 example of a non-vertebrate. 2. Comparing accessory organs: liver, gallbladder, pancreas. Compare 2 different vertebrates, include function of the organs. Remember not all vertebrates will have a gall bladder.
13) Which of the below is true about a complete digestive system? Group of answer choices it has only one opening it is less efficient at extracting energy from food than a gastrovascular cavity it can also function as a hydrostatic skeleton it allows food to be eaten while a previous meal is still being digested