the body's use of molecules for energy and growth
Metabolism
A set of interacting parts forming a complex whole
system
a molecule that organisms get from the air or water around them and use to release energy
Oxygen
Fill in the blank
Cells can only use molecules that are _____ enough to enter a cell
small
Doctors tested a patient to find out what molecules were in his cells. His cells contained normal levels of glucose molecules and amino acid molecules, and low levels of oxygen molecules. Will this patient be able to exercise normally? (yes or no?)
No, his respiratory system is not working; his cells need oxygen to react with glucose, which releases energy.
A condition caused by a lack of glucose in the cells due to the absence of insulin.
Diabetes
the body system that takes in oxygen and releases carbon dioxide
Respiratory system
A molecule made up of many glucose molecules connected together
starch
The ________ system brings in food and breaks it down into smaller molecules, such as glucose and amino acids, that can fit into cells.
digestive
True or false?
Many medical conditions cause problems because they can keep the molecules we need from reaching our cells.
true
A medical condition caused that inhibits how much oxygen can travel through the lungs and to the rest of the body
Asthma
the body system that takes in food and breaks it down
Digestive system
What are the molecules that make up proteins?
Amino Acid
What two molecules are needed to create energy in the cell?
glucose and oxygen
An athlete thinks that she can exercise as long as she eats different types of food because her body just needs different types of food molecules to work properly. Is the athlete correct? (yes or no?)
No, all cells need molecules from food and molecules from air to work properly.
A medical condhas ition caused in which someone has a low number of RBCs and difficulty transporting oxygen around the body
Anemia
the body system that transports molecules to and from all cells of the body
Circulatory system
a molecule that organisms can use to release energy and that is made of carbon, hydrogen, and oxygen atoms
Glucose
In a functioning body system, what three molecules are present in our cells?
glucose, oxygen, and amino acids
True or false
Large molecules such as proteins and starches must be broken down into smaller molecules in order to enter the cells in our bodies.
true
A medical condition caused that affects how many digestive enzymes are produced and how protein and starches are broken down
Pancreas injury
acts as the body's command center by sending and receiving signals to control and coordinate all bodily functions
Nervous system
A molecule made of carbon and oxygen atoms. We breathe this out when we exhale
carbon dioxide
Which molecule does NOT have to be broken down before it goes into the cells because they are already small enough
oxygen
Are you ready for the notebook quiz?
DUH!