Molecules
Why do cells need oxygen + glucose?
Energy
All living things are made out of this
cells
The word that describes how the body uses molecules for energy and growth
metabolism
evidence
A runner is tired. What molecule is low?
Glucose and or Oxygen
Which system provides glucose?
Digestive System
This system brings in oxygen
Respiratory
What is this process:
oxygen+glucose = water+CO2+ENERGY
Cellular respiration
These are things scientists use to represent things they cannot see
Models
Which system is affected by asthma?
Respiratory
What three molecules does the body need from the environment?
oxygen
glucose
amino acids
This system breaks down food into molecules
Digestive
If you have low oxygen levels, you will have less
energy
Why does starch and protein need to break down into smaller molecules?
So they can get into the cell (otherwise they are too big)
Low red blood cells may result in what medical condition?
Anemia
Why do cells need amino acids?
This system transports molecules
Circulatory
Why do we breath faster when we run?
We need more oxygen
What do amino acids do
build proteins
Blood doping can enhance athletic performance because the athlete's cells are getting more ___________
oxygen
Where in the cell does cellular respiration happen?
Mitochondria
Where is starch broken down into glucose?
Small Intestine
Name 3 ways to increase cellular respiration
Any 3:
Increase activity, increase digestive enzymes, eat more starchy foods, blood doping, high altitude training
When would you have to change or modify a model?
When there is new evidence
This is the enzyme needed for glucose to move into a cell. When there is not enough of this enzyme, a person may have diabetes
insulin