WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 23, Problem 4MC
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Introduction:
The gravel can help in grinding food.
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One-way passage of food through the digestive system of many animal groups allowsa. intracellular digestion.b. specialization of different regions of the digestive system.c. release of digestive enzymes into the gut.d. extracellular digestion.
Sharp and pointed molars are useful for primates to eat:
A.
Leaves
B.
Insects
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Lizards
D.
Fruit
1 a. What are three of the safeguards that prevent us from digesting our own tissues?
b. Explain how positive and negative feedback mechanisms work.
c. Is positive feedback or negative feedback more common in animals?
d. Why is one mechanism more common than the other in animals?
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WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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- In general, smaller animals eat __________ total food than larger animals in a single day, and the relative proportion of food they need to metabolize per unit number of cells is ________. A. more; equal B. less; greater C. less; smaller D. more; greater E. less; equalarrow_forwardWhich of the following is FALSE? A. Bile is a fat molecule-busting enzyme B. Vitamins are organic compounds. C. Most plants have a different composition of amino acids compared to animals. D. Water reabsorption is one of the main functions of the large intestines.arrow_forwardWhich of the following is true? A. Carnivores eat both animals and plants B. Omnivores eat both animals and plants C. Herbivores eat both animals and plants D. None of the above is true 1. 2.Which of the following is true? A. Jelly fish have an alimentary canal, which is a single opening B. Jelly fish have an gastrovascular cavity, which is a single opening C. Jelly fish have an alimentary canal, which has two openings D. Jelly fish have an gastrovascular cavity, which has two openings 3. Where in the digestive tract does mastication occur? A. Mouth B Esophagus C. Stomach D. Small Intestine E. Large Intestine 4. Where in the digestive tract is there a low pH? A. Mouth B. Esophagus CStomach D. Small Intestine E. Large Intestine 5. Where in the digestive tract does the majority of water reabsorption occur? A. Mouth B. Esophagus C. Stomach Small Intestine E. Large Intestine small intestine increases the surface area to allow for more absorption?arrow_forward
- Humans need food to provide energy.What other necessary component does foodprovide for the body?O A. Digestive enzymesO B. Raw materials to build structuresO C. HormonesO D. Oxygenarrow_forwardWhich of the following statements is untrue? a. Roughage takes a long time to digest. b. Birds eat large quantities at one time so that they can fly long distances. c. Cows do not have upper teeth. d. In pseudo-ruminants, roughage is digested in the cecum.arrow_forwardWhich of the following statement is correct? a. disaccharides, glucose is the main source of energy for mammals b. hunger pangs are initiated by low high-density lipoprotein in the blood c. duodenum is the smallest part of the small intestine and is the main site for absorption d. it takes 4-6 hours for the bolus to be transported in the anal canalarrow_forward
- in Herbivorous mammals are missing one type of teeth: O a. Premolars. O b. Molars. Oc. Incisors. O d. Canines. O e. Conical.arrow_forwardFigure 16.7 Which of the following statements about the digestive system is false? a. Chyme is a mixture of food and digestive juices that is produced in the stomach. b. Food enters the large intestine before the small intestine. c. In the small intestine, chyme mixes with bile, which emulsifies fats. d. The stomach is separated from the small intestine by the pyloric sphincter.arrow_forwardMany distance runners “carb load” the day before a big race. How does this eating strategy provide an advantage to the runner? a. The carbohydrates cause the release of insulin. b. The excess carbohydrates are converted to fats, which have a higher calorie density. c. The glucose from the carbohydrates lets the muscles make excess ATP overnight. d. The excess carbohydrates can be stored in the muscles as glycogen.arrow_forward
- How is digestion regulated?a. Digestion is regulated by the autonomic nervous system.b. Digestion is slowed by the parasympathetic nervous system.c. Digestion is increased by the sympathetic nervous system.d. Digestion is stimulated by the parasympathetic fibers of the vagus nerve.e. Sympathetic neurons cause blood to be diverted from digestive organs.arrow_forwardDiscuss the processes involved in the digestion of food in vertebratesarrow_forwardDoes the type of diet of the insect affect the structure of organs/parts of the digestive system? Cite at least four structures and explain such adaptation. Make sure that each division of the digestive system should be represented. Elaborate in your own words.arrow_forward
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