Search found 7 matches

by 113zami
Sat Aug 02, 2008 2:56 am
Forum: Cell Biology
Topic: lateral movement of proteins in lipid bilayer
Replies: 4
Views: 22454

lateral movement of proteins in lipid bilayer

I have tried to understand this sentence but I just don't get it : "Lipids and proteins are capable of lateral movement , but movement of either from one face of the bilayer to the other is prohibited. In the fluid mosaic model the proteins can float within the lipid bilayer while traversing th...
by 113zami
Sun Jul 27, 2008 2:44 pm
Forum: Molecular Biology
Topic: implanting notocord in frog embryo
Replies: 1
Views: 2009

can someone please help me with this question, I am really lost and don't know where else to look for the answer =(
thanks
by 113zami
Fri Jul 25, 2008 12:49 pm
Forum: Molecular Biology
Topic: implanting notocord in frog embryo
Replies: 1
Views: 2009

implanting notocord in frog embryo

if you implant a 2nd notochord under the one that is forming already in a developing frog embryo, what would you get?
my attempt is you would get somite or archentron since these are the things under the notocord, but I have no idea
can someone please help??
by 113zami
Tue Jun 24, 2008 10:48 am
Forum: Zoology Discussion
Topic: tunicate-notochord or NO notochord
Replies: 2
Views: 8702

tunicate-notochord or NO notochord

it says in my test prep book "the amphioxus and tunicates do not loose their notocord " but I checked this in my Campbell bio text book and it says "the adult tunicate scarcely resembles a chordate. It displays no trace of a notochord , nor is there a nerve cord or tail. Only the phar...
by 113zami
Mon Jun 16, 2008 12:58 am
Forum: Zoology Discussion
Topic: animals produce spores?!?!
Replies: 3
Views: 8198

Re: animals produce spores?!?!

thank you very much Darby for answring my questions :D
by 113zami
Sun Jun 15, 2008 11:11 pm
Forum: Zoology Discussion
Topic: animals produce spores?!?!
Replies: 3
Views: 8198

animals produce spores?!?!

I just read in my book that "both animals and plants produce spores"!!!

which animals produce spores?!?! only plants, algae, fungi and some protozoans are able to produce spores, am I right?

any ideas ....thanks for the help
by 113zami
Wed Jun 11, 2008 11:03 pm
Forum: Zoology Discussion
Topic: what's the ruminants stomach pH?
Replies: 2
Views: 9237

what's the ruminants stomach pH?

in my test prep book (which is a very reliable book) it says ruminants stomach has alkaline pH, I checked wikipedia and it says "Under normal fermentation conditions the environment in the reticulorumen is weakly alkaline and is populated by microbes that are adapted to the elevated ph; since t...