Life Processes and Living Things   

 


We can place all things into three groups:

 

Alive (living)
eg Cow, Grass, mouse, fly

Used to Be alive
eg wood, fossil, paper

Non-living
eg stone, glass, metal

 

Living things are able to do several things a non-living thing may not be able to do like move, grow, reproduce and feed .

 

There are seven processes that are carried out by all animals and plants.

These can be remembered by thinking of the letters in MRS NERG

 

Life process

What it means

Movement Going from one place to another.

Animals usually move their whole body from one place to another.

Leaves turn towards the light. Roots grow down into the soil.

Reproduction Producing new plants or animals.

Animals have babies.

New plants grow from seeds.

Sensitivity How things react and respond to what is happening around them
eg plants turning and moving towards the light or

your mouth watering when you smell something good to eat.

Nutrition Taking in food. Food is needed to supply energy

Green plants can make their own food using sunlight, carbon dioxide and water. Animals eat plants or other animals.

Excretion Getting rid of waste substances.

eg Plants and animals excrete (get rid of) carbon dioxide.

Respiration Making energy to keep you active.

Plants and animals use oxygen from the air to help turn food into energy. We need energy for our muscles. More on Respiration

Growth Cells multiplying and growing

Seedlings grow into bigger plants.

babies grow into adults

 

Respiration:
 

Respiration

Respiration is the name of a chemical reaction carried out by all living organisms in order to provide them with energy

 Glucose (a kind of sugar) reacts with oxygen releasing energy.

Carbon dioxide and water are produced as waste products

 

 

In humans the sugar enters the body through the mouth and Oxygen enters the body through the lungs
See Breathing System

 

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