Body Systems
What body system brings oxygen into the body?
Respiratory system
What molecule do we get from the air that cells need?
Oxygen
Which condition affects the respiratory system and can make it harder for oxygen to enter the blood?
Asthma
What is the main problem Elisa has been experiencing?
She feels tired / lacks energy.
True or False: Oxygen comes from the food we eat.
Explain
False — oxygen comes from the air.
What body system breaks food down into smaller molecules?
Digestive system
Name the three molecules we have focused on that cells need.
Glucose, oxygen, amino acids
Which condition can result in less oxygen reaching the cells because of a problem involving the blood?
Anemia
What kind of foods was Elisa getting enough of?
Foods that contained both protein and starch
Body systems must work together to help cells get the molecules they need.
True
What body system transports molecules throughout the body?
Circulatory system
Which molecules come from food?
Glucose
oxygen
amino acids
Glucose and amino acids
Which condition causes glucose to have trouble entering cells?
Diabetes
What was Elisa's nightly sleep average?
9 hours of sleep
If you eat enough food, your cells will always get all the molecules they need.
Explain
False — a medical condition can interfere with the process.
Name the three body systems we have studied and give the main job of each.
Digestive—breaks down food; respiratory—brings in oxygen/removes carbon dioxide; circulatory—transports molecules.
Put this pathway in the correct order:
cells → food → circulatory system → digestive system.
Food → Digestive System → Circulatory System → Cells
Which condition involves physical trauma and can affect how the body handles glucose?
Pancrease Injury
Why is Dr. Walker testing Elisa for a medical condition?
She is still tired even though she gets enough sleep and eats the right foods.
Glucose and oxygen have to travel through the circulatory system to reach cells.
True
Explain how the digestive and circulatory systems work together to get glucose from food to the cells.
The digestive system breaks food down into glucose, and the circulatory system transports the glucose to cells.
Explain how oxygen gets from outside the body all the way to the cells.
Air → respiratory system/lungs → oxygen enters the blood → circulatory system → cells.
A person’s cells are not getting enough oxygen. Name TWO medical conditions we learned about that could cause this.
Anemia and Asthma
What are the four medical conditions that could explain Elisa’s tiredness?
Anemia, asthma, diabetes, and pancreas injury.
If one body system has a problem, it can affect how well another part of the body works. Explain why.
True — body systems work together, so a problem with one system can affect the delivery of molecules to cells and how the body functions.