Key Concepts
A functioning human body has ______ from food (glucose and amino acids) and molecules from the air (oxygen).
What are molecules
The body takes in ______ by eating and breathing.
What are molecules?
A group of atoms that bonded together.
What is a molecule?
The building blocks of starch and fiber.
What is glucose?
The body system that takes in food and breaks it down.
What is the digestive system?
The respiratory system brings in _____ molecules from the air.
What is oxygen?
Some of these molecules travel to the ______ of the body.
What are cells?
A proposed answer about the natural world.
What is a claim?
Molecules that are the building blocks of Proteins.
What are Amino Acids?
The body system that takes in oxygen from the air and releases carbon dioxide.
What is the respiratory system?
The digestive system brings in food and breaks it down into smaller molecules like _______ and amino acids.
What is glucose?
In order to release _________ cells need both glucose and oxygen molecules.
What is energy?
What is energy?
A molecule that the human body cannot digest.
What is fiber?
A body system that transports molecules to and from all the cells in the body.
What is the circulatory system?
The _____ system transport glucose, amino acid, and oxygen to and from the cells in the body.
What is the circulatory system?
Growth and repair by amino acids requires energy release from ________.
What is cellular respiration?
A process in which atoms rearrange to form new substances.
What is a chemical reaction?
Molecules that are needed in cellular respiration.
What are glucose and oxygen?
The body system that sends signals to control your body.
What is the nervous system?
A problem with a body system can result in fewer oxygen, glucose, and/or _______ molecules getting in the body.
What are amino acids?
Inside the cell, the _____ that make up glucose and oxygen can be rearranged to make different molecules.
What are atoms?
The chemical reaction between oxygen and glucose that releases energy into cells.
What is cellular respiration?
A molecule made up of carbon and oxygen atoms.
What is carbon dioxide?