Gaseous Exchange and Transport
Gaseous exchange and transport
Movement of chemicals in plants and animals
-Chemicals that are being moved into the body, within the body or out of the body are gases, this movement is known as gaseous exchange.
-The gases being moved in our out of the body need to move across the surface area of the body, in most cases a special surface area has been developed.
-The surface that the gases cross is called the respiratory surface and the gases move across this surface by the process of diffusion.
-Once transported they need to be transported to parts of the body that need them.
-The gaseous exchange system allows exchange of carbon dioxide with external environment in plants and animals.
-Transport system carries chemicals from where they enter the body to where they are used.
The need for transport systems in multicellular organisms
-Unicellular organisms are so small that their surface area to volume ratio is enough to allow them to rely on simple diffusion to supply oxygen for respirations and remove waste products.
-Multicellular organisms -> bigger in size -> total surface area to volume ratio=smaller
-The transport system provides larger organisms that are active with more nutrients and oxygen provide more energy to produce more wastes.
The roles of respiratory, circulatory and excretory systems
-Respiratory: Breathing, respiration and gaseous exchange.
-Respiration is a biomechanical process occurring in all cells in the mitochondria. During the energy process of ATP is released from molecules and combined with oxygen.
RESPIRATION RELEASES ENERGY FROM FOODS!!
-Breathing is a mechanical process involving muscles and the skeleton of animals to allow the organism to inhale and exhale
-Gaseous exchange is a physical process where gases move by diffusion often across the cell membrane.
The role of the circulatory system is to:
-Transport gases, nutrients and waste products, hormones and antibodies
-Maintenance of internal
Movement of chemicals in plants and animals
-Chemicals that are being moved into the body, within the body or out of the body are gases, this movement is known as gaseous exchange.
-The gases being moved in our out of the body need to move across the surface area of the body, in most cases a special surface area has been developed.
-The surface that the gases cross is called the respiratory surface and the gases move across this surface by the process of diffusion.
-Once transported they need to be transported to parts of the body that need them.
-The gaseous exchange system allows exchange of carbon dioxide with external environment in plants and animals.
-Transport system carries chemicals from where they enter the body to where they are used.
The need for transport systems in multicellular organisms
-Unicellular organisms are so small that their surface area to volume ratio is enough to allow them to rely on simple diffusion to supply oxygen for respirations and remove waste products.
-Multicellular organisms -> bigger in size -> total surface area to volume ratio=smaller
-The transport system provides larger organisms that are active with more nutrients and oxygen provide more energy to produce more wastes.
The roles of respiratory, circulatory and excretory systems
-Respiratory: Breathing, respiration and gaseous exchange.
-Respiration is a biomechanical process occurring in all cells in the mitochondria. During the energy process of ATP is released from molecules and combined with oxygen.
RESPIRATION RELEASES ENERGY FROM FOODS!!
-Breathing is a mechanical process involving muscles and the skeleton of animals to allow the organism to inhale and exhale
-Gaseous exchange is a physical process where gases move by diffusion often across the cell membrane.
The role of the circulatory system is to:
-Transport gases, nutrients and waste products, hormones and antibodies
-Maintenance of internal