Channel: Freesciencelessons

Category: Education

Tags: biologyinsecttracheaea levelgas exchangetracheolesspiracles

Description: In this video, we look at gas exchange in insects. First we look at why larger organisms such as insects require a specialised gas exchange system. We then explore the structure of the insect gas exchange system, including the tracheae, tracheoles and spiracles. Finally, we look at how some insects have evolved mechanisms to increase the rate of gas exchange. Image credits: Amoeba commons.wikimedia.org/wiki/File:Amoeba_proteus_another_form.jpg SmallRex, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons Mouse commons.wikimedia.org/wiki/File:Animal_mammal_mouse_log_NPS_Photo_(17114740418).jpg Olympic National Park, Public domain, via Wikimedia Commons Insect commons.wikimedia.org/wiki/File:Azuragrion_nigridorsum_2016_10_08_12_08_22_5631.jpg Alandmanson, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons Bee commons.wikimedia.org/wiki/File:Bee19992_anthid_red,_m,_kenya,_angle_2014-08-09-14.36.59_ZS_PMax_(15604222151).jpg USGS Bee Inventory and Monitoring Lab from Beltsville, Maryland, USA, Public domain, via Wikimedia Commons Spiracles commons.wikimedia.org/wiki/File:Flickr_-_ggallice_-_Spiracles.jpg Geoff Gallice from Gainesville, FL, USA, CC BY 2.0 creativecommons.org/licenses/by/2.0, via Wikimedia Commons Hornet commons.wikimedia.org/wiki/File:Vespa_crabro09(js),_Lodz(Poland).jpg Jerzy Strzelecki, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons