What is the nutrients main source of energy?
Carbohydrates
What is the first organ where the food enters?
What organ filters blood?
the kidneys
What is the unit energy in food is measured in?
calories
Chewing is an example of what kind of digestion?
Mechanical digestion
Amino Acids
the esophagus
The main function of the excretory system is?
to remove waste
Why does our body need energy?
What type of digestion breaks molecules apart?
Chemical digestion
what helps people identify nutrients in food?
Food labels
the small intestine
What tubes carry urine from the kidneys to the bladder?
The ureters
Complete the list:
Energy needs depends on age, activity, and what?
body size
What speeds up digestion reactions?
Enzymes
What two nutrient groups help regulate body processes?
Vitamins and Minerals
What organ absorbs water from waste?
the large intestine
What organ stores urine before it leaves the body?
the bladder
Different foods provide different amounts of what?
Energy
What is the process of nutrients entering the blood stream?
Absorption
What nutrient, when consumed in excess, can cause health problems?
Fats
Complete the list of digestive functions:
Ingestion, Digestion, Absorption, and ?
Elimination
The excretory system helps maintain a stable internal balance.
What is that internal balance called?
Homeostasis
What is the feeling that signals your body needs food?
Hunger
Complete the list:
The body uses food for energy, growth and what?
Repair