Honors Circulatory and respiratory warm up

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.

• respiratory
• digestive
• muscular
• skeletal

Gas exchange is needed to supply _____________ to cells and remove __________________

• carbon dioxide; oxygen

• oxygen; food

• oxygen; carbon dioxide

• carbon dioxide; water

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

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

Tags

NGSS.MS-LS2-3

The movement by diffusion of oxygen and carbon dioxide across a membrane

• Ventilation
• Breathing
• Gas exchange
• Respiration

Tags

NGSS.HS-LS2-3

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

Tags

NGSS.MS-LS1-3

The human heart is an organ that pumps blood throughout the body supplying oxygen, nutrients, blood, and hormones to and from the tissues removing _________ ___________ and other wastes.

• hydrogen dioxide
• carbon moxoide
• water molecules
• carbon dioxide

Tags

NGSS.MS-LS1-3