Help with Science - Biology

[limitless]

:sl:

this is an essay type of question. Here it is i need some really good help please.
here is the question:

1.How are human systems interconnected? Do they work in isolation or dependented on one another? How is this related to an organism?

2. I know the answer to this question so I wont post it.

3.How does a plant transport nutrient and materials throughout its body? I.e., sugar. Discuss in detail the pressure flow theory with an aid of diagram and the factors responsible for movement of water in a plant? Compare this to a human system.

4.Cells specialisation. Describe how cells in human body or plant are designed to meet specialized cells. Discuss five different cells to meet a total functional ability.


Ok these are the questions on exam somethingl ike that for sure! And well i need you guys help on it because I know the stuff but well didnt get 10 vaild points for each mini essay.Please help?

:w:

[sweetbanana86]

i was good a biology and i thought of majoring in it but these answers are very meticulous and you try a search engine like google, dogpile, yahooo

[muslim_friend]

Maybe you can find the answers somewhere on wikipedia

[Malaikah]

:sl:

as much as i hate bio (didnt do it in school, stuck with it in uni), especially botany:

q.3 has something to do with phloem, which has 2 way transport (i.e. up and down, xylem is only one way), it transports sugars, which are the products of photosynthesis, from the leaf (location of photosynthesis) to the rest of the plants, including the roots.

thats all i can remember sorry, exam was over weeks ago and i can forget everything i know about plants since it has nothing to do with optometry in the first place!

:w:

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[IceQueen~]

osmosis and active transport are part of this

[*rose4islam*]

for q4) u can talk bout adaption/differance between photosynthasising cells, phloem and xylum (dont forget companion cells) cells, stomata
red blood cells white blood cells cells in the cappilaries cells, epithelium cells
each cell has a differant function so differ slightly
i hope its useful insha allah

[...]

1 = i think human systems are mainly dependant on one another, except for the heart (the sino atrial noed in the heart is myogenic = it doesn't require external nervous impulses and works independantly)
And they are interconnected in such a way that one leads to another e.g the matabolic reactions - if the chain is disrupted then the rest of the reactions can't occur. Also the muscles work in pairs and need each other contract/relax.
This is related to an organism coz the organism is one and can only work efficiently if all the partswithin it are functioning adequately (something like that)

Hope this helps - i can't be bothered writing more but if u need more specific help i'm right here :)