Difference between revisions of "Embryo"
(Created page with "The name given to a very young animal after conception but before it takes on the distinct features of the animal.") |
|||
| (7 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
| − | + | ==Key Stage 3== | |
| + | ===Meaning=== | ||
| + | An [[embryo]] is the name given to an offspring after [[conception]] but before all the [[Cell (Biology)|cells]] have specialised and it takes on the distinct features of the [[animal]]. | ||
| + | |||
| + | ===About Human Embryos=== | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:Embryo1.png|center|200px]] | ||
| + | |[[File:Embryo2.png|center|200px]] | ||
| + | |[[File:Embryo3.png|center|200px]] | ||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:center;" |After [[fertilisation]] the [[ovum]] [[Cell Division|divides]] into two [[Cell (Biology)|cells]], then four [[Cell (Biology)|cells]]. | ||
| + | | style="height:20px; width:200px; text-align:center;" |This [[embryo]] has many [[Cell (Biology)|cells]] that have not yet been given a specific job. | ||
| + | | style="height:20px; width:200px; text-align:center;" |The [[Cell (Biology)|cells]] in this [[embryo]] are being assigned specific jobs as it starts to look more like a [[human]]. | ||
| + | |} | ||
| + | |||
| + | |||
| + | ===References=== | ||
| + | ====AQA==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f258 ''Embryo, pages 13, 26, 202, 211-213, 258, 309, GCSE Biology; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f259 ''Embryo, screening pages 213, 258-9, GCSE Biology; Student Book, Collins, AQA ''] | ||
| + | |||
| + | ====Edexcel==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Embryo, page 8, GCSE Biology, Pearson, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Embryo, page 8, GCSE Combined Science, Pearson Edexcel ''] | ||
Latest revision as of 11:49, 19 November 2019
Key Stage 3
Meaning
An embryo is the name given to an offspring after conception but before all the cells have specialised and it takes on the distinct features of the animal.
About Human Embryos
 |
 |
 |
| After fertilisation the ovum divides into two cells, then four cells. | This embryo has many cells that have not yet been given a specific job. | The cells in this embryo are being assigned specific jobs as it starts to look more like a human. |
References
AQA
- Embryo, pages 13, 26, 202, 211-213, 258, 309, GCSE Biology; Student Book, Collins, AQA
- Embryo, screening pages 213, 258-9, GCSE Biology; Student Book, Collins, AQA