4.4 Feedback continued

 

Today's Learning Objective(s):

·       Explain how positive and negative feedback helps maintain homeostasis.

#	Tasks:
1	Sample Questions - Feedback Use the Wayground task to check your progress on negative and positive feedback.
2	Modeling Blood Glucose Homeostasis Continue with the models. What loops would involve digestive / circulatory systems to maintain a constant supply of glucose? How can this be displayed in the model   Negative feedback; there is a set point for glucose in the blook. Model how the systems (and cell signals insulin and glucagon) work to maintain blood glucose levels.
3	Explanations – Blood Homeostasis Let’s look at the models that were created. Use a gallery walk to see the examples the different groups produced.
4	Parathyroid Hormone (PTH) Regulates Body Calcium Read about PTH and calcium in the body. In this example, negative feedback is used to keep calcium levels at an acceptable level in the blood. Answer the analysis questions.
5	Review  Parathyroid Hormone (PTH) Regulation Let’s see what we learned about this signaling pathway and feedback mechanism. Use the large sheet of paper to work in your teams.
6	Pre-Lab: Cell Communication Obtain a lab packet. Complete the pre-lab tasks. Homework if not completed in class.

 

Homework

Pre-lab: Cell Communication (not available digitally)

 

Upcoming Assessments

12/16/25 Quiz: Feedback

12/19/25 Quiz: Cell Cycle

12/22/25 Test: Cell Communication & Cell Cycle

 

Calendar Notes

12/24/25 – 1/4/26 Winter Break

1/5/26 School Resumes (unit 5 start)

4.4 Feedback continued

 

Today's Learning Objective(s):

·        Explain how positive and negative feedback helps maintain homeostasis.

#	Tasks:
1	Quiz: Cell Communication Complete the quiz.
2	Digestive System You are to start by modeling the digestive system. What does it take to process the food we eat? Organs and Roles You are to research the different roles played by organs in the digestive system
3	Explanations – Organs of the Digestive System Explaining models – Students are to explain their models of the digestive system
4	Feedback Loop - Insulin, Glucagon, Glucose and Glycogen  Students are to examine the feedback loop in digestion and maintaining blood glucose levels. What are the feedback loops?
5	Modeling Blood Homeostasis You are to add to their models. What loops would involve digestive / circulatory systems to maintain a constant supply of glucose? How can this be displayed in the model Let’s use new vocabulary.
6	Checkpoint > Blood Homeostasis Complete the worksheet.

 

Homework

MCQs 4.4

 ✅Checkpoint > Blood Homeostasis

 

Upcoming Assessments

12/16/25 Quiz: Feedback

12/19/25 Quiz: Cell Cycle

12/22/25 Test: Cell Communication & Cell Cycle

4.4 Feedback

 

Today's Learning Objective(s):

·        Explain how positive and negative feedback helps maintain homeostasis.

#	Tasks:
1	Video: Feedback Let’s are to watch a video by FuseSchool on feedback mechanisms
2	T-Chart: Negative and positive Feedback  You are to create a T-chart for negative and positive feedback. You should use internet searches to fill the chart. Human anatomy and physiology examples should be added to the chart.
3	Notes > Feedback Mechanisms   Teacher goes over the general differences between the feedback mechanisms. Example: Homeostasis in Blood Erythrocytes
4	Classifying Homeostasis Scenarios     You are to read scenarios. You are to determine if each is positive or negative feedback.
5	Quizlet Vocabulary Review   Let’s use the new vocabulary.
6	Review  - Quiz Tomorrow   Try the MCQs

 

Homework

📕Textbook 34.1
📺Daily Video 4.4

Quizlet Review

Quiz Study Guide

 

Upcoming Assessments

TOMORROW Quiz: Cell Communication

12/16/25 Quiz: Feedback

12/19/25 Quiz: Cell Cycle

12/22/25 Test: Cell Communication & Cell Cycle

 

Calendar Notes

12/24/25 – 1/4/26 Winter Break

1/5/26 School Resumes (unit 5 start)

4.3 Changes in Signal Transduction continued

 

Today's Learning Objective(s):

·       Describe the different types of cellular responses elicited by a signal transduction pathway.

#	Tasks:
1	Quizlet Blast – Changes to Signaling Pathways Let’s revisit the recent vocabulary. Practice makes permanent!
2	Protein-Kinase Pathway Examples   Yesterday, you and your group researched a ligan, receptor, and a pathway using protein kinases to elicit a cellular response. Let’s see what you created!
3	Graphic Organizer – Agonists and Antagonists   Agonists activate receptors, mimicking natural substances to produce a biological response, while antagonists block receptors, preventing activation and reducing a substance's effect.   Use the graphic organizer and internet resources to add detail to the graphic organizer.
4	Notes > Changes in Signal Transduction   Let’s look at the role of changing cellular communication using a variety of methods.
5	Modeling and Examining Mutations in a Signal Pathway   Create a model showing a specific mutation in the EGF signaling pathway.
6	Review   Try the MCQs

 

Homework

📺Daily Video 4.3.2

MCQs 4.3

 ✅Modeling Mutations in Transduction Pathway

 

Upcoming Assessments

12/11/25 Quiz: Cell Communication

12/16/25 Quiz: Feedback

12/19/25 Quiz: Cell Cycle

12/22/25 Test: Cell Communication & Cell Cycle

 

Calendar Notes

12/24/25 – 1/4/26 Winter Break

1/5/26 School Resumes (unit 5 start)