Edexcel 6BIO2 ~ 3rd June 2013 ~ AS Biology

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Reply 1420

JaayBiology

Original post by Vivaviolin77

lol
thanks
i can definitely rememebr that

Then theres the 3 domains.. Archaea, Bacteria and Eukarya .. maybe BROTHERS ARE EVIL

Reply 1421

Whostolemycookie

Original post by mynameisntbobk

basically the dfferent taxons

Kingdom
Phylum
Class
Order
Family
Genus
Species

What questions do they usually ask on this?

Reply 1422

The Monk

Original post by Whostolemycookie

What questions do they usually ask on this?

Never seen a question on that sort of stuff to be honest

Reply 1423

Vivaviolin77

Original post by Whostolemycookie

What the hell is classification rankings? Oh my gosh I haven't heard of it! :eek:

it is somewhere in the textbook

Classification is the method used by scientists to order living organisms. All species have a unique classification that results in a binomial name. Vertebrates are an example of a classification group. Keys can be used to help to identify individual organisms.

[h="1"]Kingdom to species[/h][h="2"]Classification[/h]You will remember from your Key Stage 3 studies that species with similar characteristics are put into groups, and that this is called classification. Remind yourself of the basics of classification.
[h="2"]Kingdoms[/h]The first rank in this system is called a kingdom. There are five kingdoms, based upon what an organism's cells are like:

animalia (all multicellular animals)

plantae (all green plants)

fungi (moulds, mushrooms, yeast)

prokaryotae (bacteria, blue-green algae)

protoctista (Amoeba, Paramecium).

[h="2"]Further divisions[/h]There are several further ranks before we reach a particular species. In order, these are:

•

kingdom

•

phylum

•

class

•

order

•

family

•

genus

•

species.

For example, lions have the following classification:

•

kingdom - animal

•

phylum - vertebrate

•

class - mammal

•

order - carnivorous

•

family - cat

•

genus - big cat

•

species - lion.

Reply 1424

mynameisntbobk

Original post by Whostolemycookie

What questions do they usually ask on this?

From memory, the only thing I remember them asking is complete the section for class and family for a sepcies who was in the same genus as another, to who they gave all different taxons for

Reply 1425

JaayBiology

Original post by Whostolemycookie

What questions do they usually ask on this?

They wouldnt really, they may give the classification of an organism, and then the same for close relative, and ask to fill in the blanks on the relatives classification, usually its just copying the same stuff, you'll get it :smile:

Reply 1426

Vivaviolin77

Original post by The Monk

Never seen a question on that sort of stuff to be honest

only seen one question
saying name the 5 classification ranking that all

Reply 1427

kevsamuel

the specification doesn't specify that we need to know all 7 groups for taxonomy. Does it?

Reply 1428

Changing Skies

Is there any point in me learning transpiration if it isn't in the specification? :tongue:

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Reply 1429

gold_

Original post by JaayBiology

Kinky people can often find great sex... my biology teacher had an interesting imagination

king prawn curry or fat greasy sausages

my bio teacher weighs a ton...great at teaching though.

Reply 1430

Vivaviolin77

does anybody have a idea of which core practical that might come up

Reply 1431

Sm1995

Original post by Vivaviolin77

is there a way of remembering the classification rankings?

Keep Kingdom
Ponds Phylum
Clean Class
Or Order
Frogs Family
Get Genus
Sick Species

:smile:

Reply 1432

Whostolemycookie

I'm going I've revised way too much, I'm probably gonna wake up early and go back on this thread but just in case,
GOOD LUCK Every Body; we'll hopefully ALL get good grades :biggrin:

Reply 1433

Vivaviolin77

Original post by Sm1995

Keep Kingdom
Ponds Phylum
Clean Class
Or Order
Frogs Family
Get Genus
Sick Species

:smile:

lol that a good one

Reply 1434

Vivaviolin77

Original post by Whostolemycookie

I'm going I've revised way too much, I'm probably gonna wake up early and go back on this thread but just in case,
GOOD LUCK, we'll hopefully ALL get good grades :biggrin:

good luck to you as well

Reply 1435

JaayBiology

Please can someone give me the steps involved in the totipotency practical? :smile:

thanks guys :smile:

Not sure if we really need this but what actually happens in G1, S1 and G2 for interphase.

Reply 1438

mace0590

heey just joined here :biggrin:

what are ur expectations for 2mmorows exam bio unit 2?

Reply 1439

jooh_23

stem cells are so confusing!

so when two haploid gamete fuse, a diploid zygote forms (cells are TOTIPOTENT)
then the zygote divides into an embryo after like 5 days = inner mass = PLURIPOTENT

could someone just confirm

thanks! x

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Edexcel 6BIO2 ~ 3rd June 2013 ~ AS Biology

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