fuel for your cells part 4: your own personal gas station

Fuel For Your Fuel For Your CellsCells

Part 4: Part 4:

Your Own Personal Gas StationYour Own Personal Gas Station

Student ObjectivesStudent ObjectivesTuesday, April 18, 2023Tuesday, April 18, 2023

After today’s lesson, you will be able to:After today’s lesson, you will be able to: Explain how the circulatory and respiratory Explain how the circulatory and respiratory

systems work together to provide oxygen to systems work together to provide oxygen to cells.cells.

Explain the role of excretion in cellular Explain the role of excretion in cellular respiration.respiration.

Homework:Homework:

Completed packets due.Completed packets due.

Lesson Question:Lesson Question:

In what way could the In what way could the lungs be considered lungs be considered your own personal your own personal “gas” station?“gas” station?

-Describe and explain that the complex set of systems -Describe and explain that the complex set of systems found in multicellular organisms are made up of different found in multicellular organisms are made up of different kinds of tissues and organs which are, in turn, composed of kinds of tissues and organs which are, in turn, composed of differentiated cellsdifferentiated cells-Select several body systems and explain the role of cells, -Select several body systems and explain the role of cells, tissues, and organs in the systems selected that effectively tissues, and organs in the systems selected that effectively carry out a vital function for the organism, such as:Obtaining carry out a vital function for the organism, such as:Obtaining food and providing energy, Defense, Reproduction, Waste food and providing energy, Defense, Reproduction, Waste Removal, BreathingRemoval, Breathing

VSC Content Standard:VSC Content Standard: Recognize and explain Recognize and explain that human beings, like that human beings, like other organisms have other organisms have complex body systems complex body systems of cells,tissues, and of cells,tissues, and organs that interact to organs that interact to support an organisms support an organisms growth and survival.growth and survival.

Engage your thinking…Engage your thinking…

1.1. What materials do you or your What materials do you or your cells need to stay alive?cells need to stay alive?

2.2. How do you get these materials How do you get these materials into your body? into your body?

3.3. How do you get rid of waste?How do you get rid of waste?

Explore your text…Explore your text…

1.1. Use your text (p.130) to Use your text (p.130) to summarize the role of the summarize the role of the respiratory system in 10 words or respiratory system in 10 words or less.less.

The Functions of the The Functions of the Respiratory SystemRespiratory System

The Respiratory system has two main The Respiratory system has two main functions, both of which deal with functions, both of which deal with gases:gases:

1. Getting Oxygen from the outside 1. Getting Oxygen from the outside environment INTO the body.environment INTO the body.

2. Removing Carbon Dioxide and 2. Removing Carbon Dioxide and Water FROM the body.Water FROM the body.

The respiratory system depends The respiratory system depends upon pulmonary circulation…upon pulmonary circulation…

Pulmonary circulation is the movement of Pulmonary circulation is the movement of blood from the heart, to the lungs, and blood from the heart, to the lungs, and back to the heart again. This is just one back to the heart again. This is just one phase of the overall circulatory system phase of the overall circulatory system and goes hand-in-hand with the and goes hand-in-hand with the respiratory process.respiratory process.

The Circulatory and The Circulatory and Respiratory SystemsRespiratory Systems

PULMONARY CIRCULATION

Exploring Breathing…Exploring Breathing…

1.1. Observe teacher materials and Observe teacher materials and demonstration for the “Lung demonstration for the “Lung Machine”.Machine”.

Explain your thinking…Explain your thinking…

Use your text to compare and contrast Use your text to compare and contrast the two terms:the two terms:

Breathing and Respiration.Breathing and Respiration.

Explain your thinking…Explain your thinking…

Sketch a copy of Figure 1 (p.131) in your Sketch a copy of Figure 1 (p.131) in your packets.packets.

Be sure to include Be sure to include arrowsarrows, , structuresstructures, , and and functionsfunctions..

Explain what the graphic organizer Explain what the graphic organizer shows usshows us

Extend your knowledge…Extend your knowledge…

Explain how the respiratory and Explain how the respiratory and circulatory systems work together circulatory systems work together to provide some of the raw to provide some of the raw materials that cells need to materials that cells need to produce energy. Be sure to base produce energy. Be sure to base your response on information you your response on information you have gained from class activities.have gained from class activities.

Evaluate your learning…Evaluate your learning…

Explain the process of respiration. Explain the process of respiration. Be sure to include specific Be sure to include specific examples from your text and class examples from your text and class investigations such as the raw investigations such as the raw materials used, and the products materials used, and the products produced in your response.produced in your response.

Fuel For Your Fuel For Your CellsCells

Part 5: Taking Out The TrashPart 5: Taking Out The Trash

Lesson Question:Lesson Question:

How are waste How are waste products products removed from removed from the body?the body?

Engage your thinking…Engage your thinking…

What does the term excretion What does the term excretion mean?mean?

Why is it necessary for us to Why is it necessary for us to excrete waste products?excrete waste products?

Check your answers…Check your answers…

Excretion is the process by which Excretion is the process by which wastes are removed from the body.wastes are removed from the body.

If we did not excrete waste If we did not excrete waste products, we would continue to products, we would continue to collect more and more waste, and collect more and more waste, and eventually poison ourselves.eventually poison ourselves.

Explore your text…Explore your text…

Use your text (p.146-147) to Use your text (p.146-147) to identify the structures that make identify the structures that make up the kidneys and much of the up the kidneys and much of the excretory system and label them excretory system and label them in your diagram.in your diagram.

Check your answers…Check your answers…

A. KidneyA. Kidney

B. UreterB. Ureter

C. Urinary BladderC. Urinary Bladder

D. UrethraD. Urethra

The Kidneys and Related Structures

Kidney Filtration…Kidney Filtration…

The kidneys are the major organs The kidneys are the major organs of the excretory system. Their job of the excretory system. Their job is to eliminate is to eliminate urea, excess waterurea, excess water and other materials in urine that is and other materials in urine that is expelled from the body.expelled from the body.

How does a kidney work?


As blood flows through the kidneys, As blood flows through the kidneys, they remove wastes from the blood they remove wastes from the blood using tiny filtering factories called using tiny filtering factories called nephronsnephrons. The nephrons are tiny . The nephrons are tiny structures that remove wastes from structures that remove wastes from the blood and produce urine.the blood and produce urine.


Nephrons contain a cluster of Nephrons contain a cluster of capillaries. Here, capillaries. Here, urea, water, urea, water, glucoseglucose, and other substances are , and other substances are filtered out of the blood into a long, filtered out of the blood into a long, twisting tube, but most of the water twisting tube, but most of the water and glucose are reabsorbed. The and glucose are reabsorbed. The urea that stays in the tube urea that stays in the tube becomes urine.becomes urine.

Traveling through the system

Removing waste from the Removing waste from the blood…blood…

A. A. The KidneyThe Kidney

First, the First, the kidneyskidneys eliminate urea, eliminate urea, excess water and other materials excess water and other materials by filtering the blood in your body by filtering the blood in your body and using urea and water to create and using urea and water to create urine.urine.

Removing waste from the Removing waste from the blood…blood…

B. B. The UreterThe Ureter

Urine flows from the kidneys Urine flows from the kidneys through two narrow tubes called through two narrow tubes called uretersureters..

Traveling through the Traveling through the system…system…

C. C. Urinary BladderUrinary Bladder

The The urinary bladderurinary bladder is a sac-like is a sac-like organ that stores urine until it is full. organ that stores urine until it is full. Urine is sent here from the kidneys, Urine is sent here from the kidneys, via the ureters. When the bladder via the ureters. When the bladder fills up, you feel the need to urinate.fills up, you feel the need to urinate.

Traveling through the Traveling through the system…system…

D. D. UrethraUrethra

When urine is released from the When urine is released from the bladder, it flows through the bladder, it flows through the urethraurethra and out of the body. and out of the body.

Explain what you have Explain what you have learned…learned…

Explain the function of the kidneys Explain the function of the kidneys in 10 words or less.in 10 words or less.

Evaluate…Evaluate…

Why is excretion necessary after Why is excretion necessary after your cells obtain energy through your cells obtain energy through cellular respiration? Please cellular respiration? Please explain and include specific explain and include specific materials and products in your materials and products in your response.response.

Exploring Excretion…

There is another organ in the body that we haven’t talked about yet…the LIVERLIVER.


Some wastes need to be broken down before the can be excreted. The LIVERLIVER performs this function. Urea, which comes from the breakdown of proteins, is produced by the liver.


From one of our previous units, can you think of another duty that the LIVERLIVER performs?

Exploring Excretion… The liver also helps the digestive system perform its

job. The LIVERLIVER produces a product celled bile, which helps to break down fats during chemical digestion.

Evaluate yourself…Evaluate yourself…

Can you:Can you: Explain how the circulatory and Explain how the circulatory and

respiratory systems work together respiratory systems work together to provide oxygen to cells.to provide oxygen to cells.

Explain the role of excretion in Explain the role of excretion in cellular respiration.cellular respiration.

HomeworkHomework Completed packets due.Completed packets due.