Respiration

Respiration happens

• inside all the cells in the body

• only in the lungs

Respiration

• releases energy

• uses up energy

Respiration

• happens in all living things

• happens in animals, but not plant

the kind of respiration that happens inside the cells

• aerobic respiration

• anaerobic respiration

• breathing

• cell breathing

aerobic respiration uses ​ (a)   and produce ​ (b)   as a waste product.

• oxygen
• carbon dioxide

organs that help to take oxygen out of the air and get rid of carbon dioxide is

• immune system

• nervous system

• respiratory system

• circulatory system

the trachea is sometimes called the ​ (a)   and has strong rings of ​ (b)   around it.

• windpipe
• cartilage
• larynx
• pharynx
• voicebox

alveolus can be considered as

• air sacs

• bronchi

• bronchiole

• bronchus

oxygen from the air goes into the blood and carbon dioxide from the blood goes into the air

• breath-taking

• gas exchange

• diffusion

• osmosis

oxygen in the blood combine with

• haemoglobin

• white blood cell

• platelets

• plasma