WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 22, Problem 13SA
Summary Introduction
To analyze:
How mammals that don't have enzymes for the digestion of cellulose are able to extract nutrients from foods that contain cellulose.
Introduction:
Various bacteria live in the digestive organs of animals that consume cellulose-rich foods.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
When young rats are placed on a completely fat-free diet, they grow poorly, develop a scaly dermatitis, lose hair, and soon die.
These symptoms can be prevented if linoleate or plant material is included in the diet.
What makes linoleate an essential fatty acid?
Animals lack the enzymes required to synthesize long-chain fatty acids with 14 or more carbons.
Animals lack the enzymes required to synthesize odd-number fatty acids.
Animals lack the enzymes required to synthesize polyunsaturated fatty acids.
Animals lack the enzymes required to introduce double bonds into fatty acids beyond the A9 position.
Fatty acids and triglycerides are an important source of nutrition and a dense form
of stored energy. Digestion of fats yields more energy per gram than digestion of
carbohydrates.
In the first step of fatty acid digestion, the carboxylic acid of a fatty acid is activated
to a fatty acyl-CoA. This activation step
A) requires the input of energy from ATP.
B) requires the input of energy from NADH.
C) releases energy which is captured in the form
of ATP.
D) releases energy which is captured in the form
of NADH.
One example of a stage 1 reaction in the heterotrophic breakdown of food molecules is:
the intramitochondrial digestion of pyruvate into carbon dioxide and water
the intramitochondrial digestion of fatty acids into carbon dioxide and water
the extracellular digestion of triglycerides into fatty acids and glycerol
the intracellular digestion of some amino acids into NH4+ and pyruvate
the intracellular digestion of glucose monomers into pyruvate
Chapter 22 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
Ch. 22 - Prob. 1SACh. 22 - Prob. 2SACh. 22 - Prob. 3SACh. 22 - Prob. 4SACh. 22 - Prob. 5SACh. 22 - Prob. 6SACh. 22 - Prob. 7SACh. 22 - Prob. 8SACh. 22 - Prob. 9SACh. 22 - Prob. 10SA
Ch. 22 - Prob. 11SACh. 22 - Prob. 12SACh. 22 - Prob. 13SACh. 22 - Prob. 14SACh. 22 - Prob. 15SACh. 22 - Prob. 16SACh. 22 - Prob. 1MCCh. 22 - Prob. 2MCCh. 22 - Prob. 3MCCh. 22 - Prob. 4MCCh. 22 - Prob. 5MCCh. 22 - Prob. 6MCCh. 22 - Prob. 7MCCh. 22 - Prob. 8MCCh. 22 - Prob. 9MCCh. 22 - Prob. 10MCCh. 22 - Prob. 11MCCh. 22 - Prob. 12MCCh. 22 - Prob. 13MCCh. 22 - Prob. 14MCCh. 22 - Prob. 15MC
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- One example of a stage 3 reaction in the heterotrophic breakdown of food molecules is: the intramitochondrial digestion of fatty acids into carbon dioxide and water the intracellular digestion of glucose monomers into pyruvate the intracellular digestion of some amino acids into NH4+ and pyruvate the extracellular digestion of polypeptides into amino acids the extracellular digestion of triglycerides into fatty acids and glycerolarrow_forwardSuppose that you perform an experiment to observe the effect of temperature and pH on the enzymatic activity of salivary amylase using the Iodine test, and starch as the substrate. Complete the table below: Temperature (°C) Color of solution Rank (1 - greatest digestion and 3 - least digestion) with I2 4 37 100 pH Color of solution Rank (1 - greatest digestion and 3 -least digestion) with I2 4 7 10arrow_forwardDiscuss why fish is susceptible to infectious diseases when the diet is deficient in essential fatty acidsarrow_forward
- Although rabbits cannot digest the cellulose in their all-plant diet, bacteria that live in their cecum can. However, to make full use of the nutrients released by bacterial action, a rabbit must produce and eat a special type of feces. Why must the rabbit reswallow this material to obtain the nutrients released by bacterial action?Some people who have gallstones experience pain after they eat, with fatty meals causing the greatest discomfort. Why do such meals trigger gallbladder pain? Diabetes insipidus is a medical disorder in which a person produces an unusually large amount of highly dilute urine. Some cases are caused by a gene mutation, but in most people, diabetes insipidus arises after a head injury. Explain how an injury to the head could affect kidney function.Marine mammals and desert rodents both have highly efficient kidneys that produce only a tiny amount of very concentrated urine. What selective pressure shaped this trait in both animals?arrow_forwardWhy are linoleate and linolenate considered essential fatty acids? What step in production of polyunsaturated fatty acids are mammals unable to perform?arrow_forwardDigestion is the first stage in the extraction of energy from food, but no useful energy is acquired during this stage. Why is digestion considered a stage in energy extraction?arrow_forward
- An example of an enzyme responsible for the chemical digestion of unsaturated triglycerides is: a-Amylase b-Pepsin c-Lipase d-Trypsinarrow_forwardExplain the importance of lipid as a macronutrient.arrow_forwardThe stomach has two types of exocrine cells, chief cell which secrete an inactive form of the protein degesting enzymes pepsinogen, and parietal cells , which secrete hydrochloric acid that activates pepsinogen.Both cell types have an abundance of mitochondria ATP production.The chief cells need energy to synthesise pepsinogen and parietal cells need energy to transport hydrogen ions and chloride ions from the blood into the stomach lumen.Only one of this cell types has an extensive roung endoplasmic and abandant Golgi stacks. Would this be the chief cells or parietal cells?why?arrow_forward
- Asaparrow_forwardThe stomach has two types of exocrine cells: the chief cells, which secrete an inactive form of the protein-digesting enzyme pepsinogen, and the parietal cells, which secrete hydrochloric acid (HCl) that activates pepsinogen. Both cell types have an abundance of mitochondria for ATP production- the chief cells need energy to synthesize pepsinogen, and the parietal cells need energy to transport hydrogen ions. (H+) and chloride ions (Cl-) from the blood into the stomach lumen. Only one of these cell types has an extensive rough endoplasmic reticulum and abundant Golgi stacks. Would this be the chief cells or the parietal cell? parietal cells.arrow_forwardWhat is the harmful result when excessive amounts of fats are burned for energy? Name two conditions that might lead to this result.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Nutrition and Diet - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=SFE1DfAlipo;License: Standard Youtube License