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WorksheetsHonors Circulatory and respiratory warm up
Total questions: 12
Worksheet time: 3hrs 46mins
What best describes the process of diffusion?
molecules move from an area of low concentration to an area of high concentration
molecules move from an area of high concentration to an area of low concentration
diffusion maintains a concentration gradient
molecules move all to once side
When we talk about diffusion, does "concentration gradient" mean?
movement of molecules
Number of particles of a substance in an area.
removal of wastes
The type of substance that is added to water
The circulatory system works with the ___________ system to provide our body with oxygen and remove carbon dioxide.
Gas exchange is needed to supply _____________ to cells and remove __________________
carbon dioxide; oxygen
oxygen; food
oxygen; carbon dioxide
carbon dioxide; water
What is the site of gas exchange in the respiratory system?
alveoli
bronchus
nose
trachea
What occurs during gas exchange?
CO2 diffuses from high concentration in the alveoli to low concentration in the capillaries
Oxygen diffuses from low concentration in the capillaries to high concentration in the alveoli
CO2 diffuses from high concentration in the capillaries to low concentration in the alveoli
Oxygen diffuses from high concentration in the capillaries to low concentration in the alveoli
What is the main function of the respiratory system?
to provide oxygen and remove carbon dioxide from the body
to bring carbon dioxide to the body
to break down food and absorb nutrients
to remove oxygen from the body and deliver carbon dioxide
The air sacs that are covered with capillaries where gas exchange takes place.
Bronchi
Trachea
Oxygen
Alveoli
Excrete waste from the bladder
transport nutrients, and oxygen to cells and remove carbon dioxide
