The Seven Processes of Life
The seven processes of life
The seven processes of life are the key to all living organisms: these processes consist of nutrition, growth, movement, respiration, reproduction, sensitivity and excretion. Although, they may be achieved in different ways depending on the organism. These processes happen with in both plants and animals; in each organ, cell and organelle. All these processes are interlinked and have a chain effect upon one another. Without one of them the others aren’t possible.
Movement
For living things to find energy/nutrients they have to interact with their surroundings, this is only possible if movement is able to happen. A plant will turn its leaves to the sun (phototropism): strands of xylem and phomen provide a skeleton like structure for the plant to grow towards the light source. Whilst a plant’s roots grow downward in response to the pull of gravity known as gravitropism.
Nastic movement in plants do not involve growth and do not depend on the direction of the stimulus. The leaflets of a Mimosa Pudica, after being exposed to thermal stimuli through touch react due to the change on turgor pressure within the base of each leaflet. It can take only a few seconds to cause a response. Another nastic response is sleepmovement, known as photonasticy, a plant’s response to night and day. This again is a reaction from the change of turgor pressure in motor cells.
Active transport is an example of movement on cellular level as only take place in a living system that is actively producing energy by respiration. Energy is needed for the molecules or ions to be carried against their concentration gradient. (M.B.V. Roberts, Biology a functional approach)
Animals have the ability to move from one place to another. This occurs in three different environments, water, land and air; in basic terms it enables them to move away from danger and find food.
In water, buoyancy reduces the influence of gravity. The primary force restricting forward
The seven processes of life are the key to all living organisms: these processes consist of nutrition, growth, movement, respiration, reproduction, sensitivity and excretion. Although, they may be achieved in different ways depending on the organism. These processes happen with in both plants and animals; in each organ, cell and organelle. All these processes are interlinked and have a chain effect upon one another. Without one of them the others aren’t possible.
Movement
For living things to find energy/nutrients they have to interact with their surroundings, this is only possible if movement is able to happen. A plant will turn its leaves to the sun (phototropism): strands of xylem and phomen provide a skeleton like structure for the plant to grow towards the light source. Whilst a plant’s roots grow downward in response to the pull of gravity known as gravitropism.
Nastic movement in plants do not involve growth and do not depend on the direction of the stimulus. The leaflets of a Mimosa Pudica, after being exposed to thermal stimuli through touch react due to the change on turgor pressure within the base of each leaflet. It can take only a few seconds to cause a response. Another nastic response is sleepmovement, known as photonasticy, a plant’s response to night and day. This again is a reaction from the change of turgor pressure in motor cells.
Active transport is an example of movement on cellular level as only take place in a living system that is actively producing energy by respiration. Energy is needed for the molecules or ions to be carried against their concentration gradient. (M.B.V. Roberts, Biology a functional approach)
Animals have the ability to move from one place to another. This occurs in three different environments, water, land and air; in basic terms it enables them to move away from danger and find food.
In water, buoyancy reduces the influence of gravity. The primary force restricting forward