Difference between revisions of "MRS GREN"
Line 60: | Line 60: | ||
|- | |- | ||
| style="height:20px; width:400px; text-align:left;" | | | style="height:20px; width:400px; text-align:left;" | | ||
− | : '''Movement''' - | + | The picture shows a micro-organism called a Euglena. |
− | : '''Respiration''' - | + | : '''Movement''' - The [[Euglena]] has a tail called a [[flagellum]] which it can use to swim. |
− | : '''Sensitivity''' - | + | : '''Respiration''' - The [[Euglena]] makes its own food and uses that food for energy. |
− | : '''Growth''' - | + | : '''Sensitivity''' - The [[Euglena]] can sense light using an organelle called an [[Eye Spot|eye spot]]. |
− | : '''Reproduction''' - | + | : '''Growth''' - The [[Euglena]] gets bigger before [[Cellular Division|dividing]]. |
− | : '''Excretion''' - | + | : '''Reproduction''' - The [[Euglena]] [[Cellular Division|divides]] to make two identical copies of itself. |
− | : '''Nutrition''' - | + | : '''Excretion''' - The [[Euglena]] gets rid of waste with a [[Contractile Vacuole|contractile vacuole]]. |
+ | : '''Nutrition''' - The [[Euglena]] takes in nutrients from the water around it. | ||
| style="height:20px; width:400px; text-align:left;" | | | style="height:20px; width:400px; text-align:left;" | | ||
− | : '''Movement''' - | + | This picture shows many [[Muscle Cell|muscle cells]]. |
− | : '''Respiration''' - | + | : '''Movement''' - [[Muscle Cell|Muscle cells]] can get longer and shorter. |
− | : '''Sensitivity''' - | + | : '''Respiration''' - [[Muscle Cell|Muscle cells]] get energy from the [[glucose]] in food. |
− | : '''Growth''' - | + | : '''Sensitivity''' - [[Muscle Cell|Muscle cells]] respond to electrical signals to change length. |
− | : '''Reproduction''' - | + | : '''Growth''' - [[Muscle Cell|Muscle cells]] get bigger before [[Cellular Division|dividing]]. |
− | : '''Excretion''' - | + | : '''Reproduction''' - [[Muscle Cell|Muscle cells]] [[Cellular Division|divide]] to make two identical copies of themselves. |
− | : '''Nutrition''' - | + | : '''Excretion''' - [[Muscle Cell|Muscle cells]] pass waste materials into the blood to be taken away. |
+ | : '''Nutrition''' -[[Muscle Cell|Muscle cells]] get nutrients form the blood. | ||
|} | |} |
Revision as of 12:02, 2 September 2018
Contents
Key Stage 2
Meaning
MRS GREN is a memory tool to help remember what makes something alive.
MRS GREN
If something is Alive is must be able to:
- Move - To change direction.
- Respire - Get energy from food.
- Sense - To be able to respond to changes in the environment.
- Grow - Get get bigger.
- Reproduce - To make copies of itself.
- Excrete - To get rid of waste products.
- Nutrition - To take in new materials for growth and repair.
Examples
|
|
Key Stage 3
Meaning
MRS GREN is an acronym used to help remember the criteria for something to be considered alive.
About MRS GREN
MRS GREN stands for:
- Movement - All living creatures can change direction when moving.
- Respiration - All living creatures can get energy from food.
- Sensitivity - All living creatures can respond to changes in the environment.
- Growth - All living creatures can get bigger by taking on new material.
- Reproduction - All living creatures can make copies of themselves.
- Excretion - All living creatures can get rid of waste materials.
- Nutrition - All living creatures can take on new materials for movement, growth and repair.
Examples
The picture shows a micro-organism called a Euglena.
|
This picture shows many muscle cells.
|