Cell Metabolism

Introduction

In this assignment, you will review scenarios and answer the corresponding questions. You will need to apply the concepts related to the three cell energy systems. 

Assignment Instructions

Review the three (3) cellular energy systems presented in the course videos and interactive learning activity. 

Immediate (Phosphocreatine-ATP system) 

1. Short-term (Anaerobic glycolysis) 

Long-term (Aerobic glycolysis, KREBS Cycle, Electron Transport Chain) 

Read the scenarios.  

Choose two of the scenarios and complete the tasks. Include the following in your assignment report.  

Determine which energy system is used during each activity throughout the story. 

QUESTION of the energy system for each activity in the chosen scenarios. Include the fuel for the system and an overview of how the system produces ATP.  

QUESTION of why that energy system is activated for each activity. 

Describe why this system is used and how it works to provide ATP.

1. Notes

Do not include/rewrite the questions in the assignment.

Your submission must have a Turnitin similarity score of less than 15%

Scenario 1: Joe

The alarm clock goes off and Joe wakes up. He is lying in bed wondering what to do today. Suddenly he hears a scream coming from outside his apartment. He bolts out of bed, throws on his robe, and runs outside to see what is going on. He is outside in a few seconds (activity #1). His adrenaline is pumping as he looks around to see who is screaming. He stands motionless and carefully listens to attempt to determine the origin of the scream. He sees his neighbor in the parking lot who says he also heard the scream. Joe’s neighbor says he thinks the scream came from the apartment building on the other side of the parking lot. They both jog across the parking lot and reach the building on the far end in about 2 minutes (activity #2). They stand still and listen for a few minutes and hear the scream again. They knock on the apartment door. No answer. They knock harder until an elderly lady comes to the door. In the background, the TV is blaring a horror movie. Relieved, they slowly walk back to their apartments (activity #3).

Scenario 2: Jane

Jane decides to go to the gym. She enters the gym and sees her friend Joan riding an exercise bike. She thinks this is a good place to start so she gets on the bike next to Joan and starts to pedal vigorously. After about 2 minutes she gets tired and stops to rest (activity #1). She then sees her friend Jon lifting weights. She walks over to the weight area and picks up a 25lb barbell—too heavy so she quickly puts it down (activity #2). She is feeling very tired today and tries the treadmill. She gets on a treadmill and finds her second wind and walks at a brisk rate for 30 minutes (activity #3).

Scenario 3: Jed

• Jed is a top athlete and a little extreme. He gets up one morning to do his usual workout. He starts with a fast sprint running at maximal speed for about 10 seconds (activity #1). He then takes a slow walk around the block to cool down. He gets home and decides to do some weight work so he does 3 sets of 10 bench presses and completes each series in about 2.5 minutes (activity #2). His wife yells “will you stop it and help me get the kids ready for school.” Jed pretends not to hear and goes back out for a 3-mile run—peace, and quiet (activity #3).