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1. A student is working on drawing and labeling a very basic model showing how cellulose is broken down. The student's work on the model so far is shown below. Based on the passage above, revise the student's model so that it is correct and complete. Be sure to clearly identify all your revisions to the model. : Cellul Cellula Active Sile 2. Identify the subunits (monomers) that make up cellulase and those that make up cellulose. Describe the difference in these two macromolecules' roles in cellular systems.

1. A student is working on drawing and labeling a very basic model showing how cellulose is broken down. The student's work on the model so far is shown below. Based on the passage above, revise the student's model so that it is correct and complete. Be sure to clearly identify all your revisions to the model. : Cellul Cellula Active Sile 2. Identify the subunits (monomers) that make up cellulase and those that make up cellulose. Describe the difference in these two macromolecules' roles in cellular systems.

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Practice Performance Task: Cellulase Both humans and cows are able to consume plant matter made up of complex carbohydrates, such as starch or cellulose. However, a cow's digestive system is very different from that of a human. As a result, humans and cows differ in their ability to extract nutrients from plant-based food resources. For example, unlike humans, cows can thrive on grass, which is largely made up of cellulose. Cows are able to digest grass thanks to a complex community of microbes, including bacteria, in their digestive system. These bacteria produce cellulase, which starts the process of breaking down cellulose into smaller subunits of glucose. Cows then acquire energy as the microbes in their digestive system utilize the glucose to carry out fermentation. A by-product of fermentation by bacteria is methane gas (CH₂). udent Resource 1. A student is working on drawing and labeling a very basic model showing how cellulose is broken down. The student's work on the model so far is shown below. Based on the passage above, revise the student's model so that it is correct and complete. Be sure to clearly identify all your revisions to the model. Cellul Practice Performance Task: Cellulase Unit 3: Cellular Systems Cellulase Active Ste 2. Identify the subunits (monomers) that make up cellulase and those that make up cellulose. Describe the difference in these two macromolecules' roles in cellular systems. PRACTICE PERFORMANCE TASK
Transcribed Image Text:Practice Performance Task: Cellulase Both humans and cows are able to consume plant matter made up of complex carbohydrates, such as starch or cellulose. However, a cow's digestive system is very different from that of a human. As a result, humans and cows differ in their ability to extract nutrients from plant-based food resources. For example, unlike humans, cows can thrive on grass, which is largely made up of cellulose. Cows are able to digest grass thanks to a complex community of microbes, including bacteria, in their digestive system. These bacteria produce cellulase, which starts the process of breaking down cellulose into smaller subunits of glucose. Cows then acquire energy as the microbes in their digestive system utilize the glucose to carry out fermentation. A by-product of fermentation by bacteria is methane gas (CH₂). udent Resource 1. A student is working on drawing and labeling a very basic model showing how cellulose is broken down. The student's work on the model so far is shown below. Based on the passage above, revise the student's model so that it is correct and complete. Be sure to clearly identify all your revisions to the model. Cellul Practice Performance Task: Cellulase Unit 3: Cellular Systems Cellulase Active Ste 2. Identify the subunits (monomers) that make up cellulase and those that make up cellulose. Describe the difference in these two macromolecules' roles in cellular systems. PRACTICE PERFORMANCE TASK
ANCE 3. Humans produce the enzyme amylase. This enzyme breaks down starch, a complex carbohydrate found in many food sources (e.g.. potatoes, breads). Explain why the human digestive system is unable to use amylase to break down the complex carbohydrate cellulose, which is also found in some foods (such as celery). 4. A team of scientists conducted a study to examine how different temperatures affect the reaction rate of cellulase. To determine reaction rate, they measured the amount of methane released by cellulase-producing bacteria in the presence of cellulose. The following graph shows the data the scientists collected during their study. Gas produced (mL) 2 20 30 40 50 60 70 80 90 100 Temperature (°C)
Transcribed Image Text:ANCE 3. Humans produce the enzyme amylase. This enzyme breaks down starch, a complex carbohydrate found in many food sources (e.g.. potatoes, breads). Explain why the human digestive system is unable to use amylase to break down the complex carbohydrate cellulose, which is also found in some foods (such as celery). 4. A team of scientists conducted a study to examine how different temperatures affect the reaction rate of cellulase. To determine reaction rate, they measured the amount of methane released by cellulase-producing bacteria in the presence of cellulose. The following graph shows the data the scientists collected during their study. Gas produced (mL) 2 20 30 40 50 60 70 80 90 100 Temperature (°C)
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