Help Me

[helpme1234]

I need someone to answer these questions I need them fast my exam is 2morrow and im gona fail!!!

1. Experimental design: discuss the technical aspects of any lab exercise performed this term. This is not the same as lab procedure.

What are technical aspects? Like in any lab what would it be?

 

2. Describe with the aid of three (3) diagrams how the structure (design) of the cell membrane is determined by the nature of its constituents

 

3. The nature and location of chloroplasts in photosynthetic organisms is a result of their environment. Discuss.

 

4. Diagram how cells transport materials across the plasma membrane.

[ecoli]

none of these questions would be hard to answer with a quick google search. As for your exam, good luck, but don't you think you should have learned the material before the night before the exam?

[helpme1234]

oh but they refuse

to help

the twist of this is

they give us the questions

we find the answer

we found the questions tdoay

and the bigger twist

its not in our text book

we are in grade 10

if you would help me please

or at least source some sites cause

when i googled it

trust me i didnt understand it

[helpme1234]

btw their

essay questions

[RyanJ]

when i googled it

trust me i didnt understand it

 

Isn't that the whole idea? To learn something you did not know before? It would be pointless asking a question if they knew everyone would be able to answer it with no research or applicaiton of knowkedge. Only 30% of my Biology exam is pure learning the rest is applied knowledge and research. If you don't understand the material keep reading it until you do understand it or look for a better reference.

 

A good research resource is here: http://en.wikipedia.org/wiki/

 

Cheers,

 

Ryan Jones

[rakuenso]

no one cares about your soliloquies and monologues.

[ecoli]

Ok... I'll try to help you out

 

1) Well, seeing as how I have no idea what labs you did in school, I can't really help you with that one.

 

2) Cell membranes are made up of phospholipid bilayers with proteins embedded. here are a ton of sites http://www.google.com/search?q=cell+membranes&start=0&ie=utf-8&oe=utf-8&client=firefox-a&rls=org.mozilla:en-US:official

 

3) Why are choloroplasts where they are? To maximize their exposure to light is one reason. http://www.google.com/search?hs=HU0&hl=en&lr=&safe=off&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&q=chloroplasts+mitochondria&btnG=Search

[helpme1234]

u forgot question ffour

and i know

for number one i was jus asking

what do they mean by "technical aspects"

[helpme1234]

thankz ecoli for the help

starting to get some good stuff

going

[ecoli]

you're right I forgot 4... but the links from question 2 will help you out with that one.

 

I'm guessing by technical aspects, they mean what was happening in the labs... what mechanisms were going on, what properties where you testing, and things like that.

[RyanJ]

u forgot question ffour

and i know

for number one i was jus asking

what do they mean by "technical aspects"

 

This may help for #4:

 

http://images.google.com/images?svnum=10&q=%22membrane+transport%22&btnG=Search

 

Or for more information on transportation (The 4 methods of) that may help with diagrams:

 

http://en.wikipedia.org/wiki/Osmosis

http://en.wikipedia.org/wiki/Diffusion

http://en.wikipedia.org/wiki/Active_transport

http://en.wikipedia.org/wiki/Facilitated_diffusion

 

Cheers & good luck,

 

Ryan Jones

[helpme1234]

oh crap

i understand question four now

thanks a million!

[helpme1234]

ryan

the way u did question four

can u help me on 2 and 3 too

cause those listings actualyl made me understand

everything

[RyanJ]

ryan

the way u did question four

can u help me on 2 and 3 too

cause those listings actualyl made me understand

everything

 

1) No idea realy, depends on thee xperiment. List factors that directly affect the results - how its made a fair test, what factors are kept the same and changed etc.

 

2) Try these:

 

http://en.wikipedia.org/wiki/Plasma_membrane

http://en.wikipedia.org/wiki/Lipid_bilayer

http://en.wikipedia.org/wiki/Phospholipid (Most of the stuff here is probably above what you'll be tested on!)

http://www.sirinet.net/~jgjohnso/apbio5.html

 

And some images may help too...

 

http://images.google.com/images?&q=%22plasma%20membrane%20structure%22&btnG=Google+Search&sa=N&tab=wi

 

3) http://en.wikipedia.org/wiki/Chloroplasts

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/L/LightReactions.html

http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Chloroplasts.html

 

And images:

 

http://images.google.com/images?q=%22chloroplasts%22&btnG=Search

 

Once again, good luck

If you have any actual questions you may also try positng those, I'm shure someone here can help you with them!

 

Cheers,

 

Ryan Jones