metabolism lesson 3.3: cellular respiration, growth, and

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Metabolism

Lesson 3.3: Cellular Respiration, Growth, and Repair


Warm-Up

7 MINMetabolism: Lesson 3.3

Activity 1


Activity 1Metabolism: Lesson 3.3

Investigation Notebook pg 74

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In the Sim, we observed that when we eat foods with protein, the protein molecules are broken down into smaller amino acid molecules in the digestive system.



We also observed that the circulatory system delivers amino acid molecules to the cells.

In the cells, they are combined to form newprotein molecules.



The proteins we eat give our cells the parts to make new proteins that meet the specific needs of the cell and the body.

Today, we’ll learn how these new proteins are formed and what our cells and bodies use them for.


Reading About Cellular Growth and Repair


Activity 2



Next, you’ll read and annotate an article to learn how the cells in the body use the proteins produced in the cells. As you read, keep these questions in mind to discuss after.




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What surprised you about this article?

How are amino acid molecules used in cellular growth and repair?

How are glucose and oxygen molecules used in cellular growth and repair?



Let’s see what we can learn about cellular growth and repair by observing the MetabolismSimulation.


Activity 2

https://apps.learning.amplify.com/metabolism/metabolism_70.html



Energy from cellular respiration is needed to build protein molecules from amino acids. Without it, the amino acid molecules remain at the top of the cell and do not combine.


Modeling Cellular Growth and Repair


Activity 3



You will use the Modeling Tool to show what cellslook like in a healthy body. This includes showing the moleculesnecessary for releasing energy for cellulargrowth and repair.




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What should your cell model look like when cellular respirationand growth and repairare happening?

Let’s share our models as a class.




Annotate your models to include details and vocabulary about what is happening in the healthy body.



Key Concept

10. Cells can grow and repair themselves by combining amino acid molecules to form larger protein molecules. This growth and repair requires energy release from cellular respiration.


Writing About Elisa


Activity 4



Diabetes is a medical condition that results in significantly lower than normal numbers of glucose molecules being delivered to the cells of the body.



We’ve already thought about how having fewer glucose molecules in her cells affected Elisa’s body’s ability to release energy through cellular respiration,making her tired.



Next, you will write a short explanationabout how Elisa's diabetes also affects her body’s ability to grow and repair cells.




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End of Lesson

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Metabolism: Lesson 3.3

metabolism lesson 3.3: cellular respiration, growth, and

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