Biology - December 2006

Ok, sorry but this is in 4 parts, but i really need some help on this as its revision for my exam in a few weeks! Thanks:

So basically we have a cell in solution, and the cell contains the following: Sucrose 0.20, glucose 0.01, fructose 0.01, maltose 0.01 and outside the cell and in the solution there is sucrose 0.65 and glucose 0.04.

(i) which sugar(s) will move out of the cell?
(ii) Which sugar(s) will move into the cell?
(iv)Explain why the volume of the "cell" would change during the experiment (4 marks).

Thank you very much for your time and help,
Jon

2006-12-13 18:51:24 · 4 answers · asked by Anonymous

2006-12-13 18:50:25 · 5 answers · asked by Anonymous

2006-12-13 18:27:43 · 5 answers · asked by fawziah 1

Take a look at the strands below. Determine which is a strand of DNA and which is a strand of RNA.

CAGACGAAU

GCTACGGTA

2006-12-13 17:59:35 · 7 answers · asked by MiSsBHaVeN05270 1

Could anyone offer me any information about the discovery of genotype or phenotype?
Thanks a lot

2006-12-13 17:39:13 · 6 answers · asked by kyd.shorlen 1

2006-12-13 17:30:06 · 5 answers · asked by micky_vane 1

2006-12-13 17:21:45 · 3 answers · asked by asnb 1

2006-12-13 17:12:29 · 11 answers · asked by micky_vane 1

2006-12-13 17:10:07 · 14 answers · asked by micky_vane 1

we all get some times?

2006-12-13 16:58:24 · 9 answers · asked by Joe 5

2006-12-13 16:58:02 · 11 answers · asked by lizzie 2

What causes this?

2006-12-13 16:46:12 · 3 answers · asked by Anonymous

What causes the movement of blood through the Arteries?........................ Veins?

2006-12-13 16:45:35 · 8 answers · asked by Anonymous

2006-12-13 16:00:38 · 6 answers · asked by lynnsue46 1

cellulose or disaccharides what else?

2006-12-13 15:58:19 · 9 answers · asked by Sunhwa w 1

Like, what is its purpose in your body Does it effect your skin pigmentation? Does it cause anything? What are the sources of it?
Just the general role

2006-12-13 15:51:22 · 7 answers · asked by Anonymous

2006-12-13 15:41:53 · 2 answers · asked by Allison W 1

Which one of the stages produces the most ATP when glucose is completely oxidized to carbon dioxide and water?

2006-12-13 15:40:05 · 1 answers · asked by Anonymous

2006-12-13 15:28:38 · 8 answers · asked by ♥ luvey dovey ♥ 2

HELP

2006-12-13 15:28:00 · 1 answers · asked by C_ster 1

I took biology honors last year and I got an 85 for my final grade, I am decided to take regular chemistry this year, and I was wondering how much work you get in AP biology and AP Environmental science. Would it be good to take AP biology next year or AP Environmental Science? I have to take the class with a regular physics class though. Is it possible to take all three at the same time with all of the work in each of them?

2006-12-13 15:13:47 · 7 answers · asked by Kevin 1

I always wonder, why do peoples eyes produce tears when they cry. No other animal produces tears like that, so many at one time. Does anyone know the real purpose of this?

2006-12-13 14:46:53 · 8 answers · asked by Stark 6

2006-12-13 14:46:50 · 3 answers · asked by mserati@sbcglobal.net 2

Feedback regulation often involves allosteric modulation of an enzyme at the committing step.

Nucleic acids tend to be strongly anodic in an electrophoretic field.

Mg++ are generally required by phosphotransferases.

Terpenoids are easily synthesized and broken down in the process of energy storage and utilization.

Plants and other autotrophs are generally more metabolically robust and do not require “vitamins” and organic carbon.

Good Luck :)~

2006-12-13 14:38:29 · 5 answers · asked by Bleeble Blabble 3

I read somewhere they have one less than normal. Is that true?

2006-12-13 14:31:54 · 8 answers · asked by Anonymous

I lost my science book and can't see the proper info in any site -.- So gratz and thank you for anybody who figures this :) Tanks~

Name the steps in the path of oxygen from air to a body cell

2006-12-13 13:59:12 · 5 answers · asked by ?? 1

a)they probably hunted
b)they were the first hominids to use fire
c)they may have given rse to hominids that resemble modern humans
d)they were found only in Africa

2006-12-13 13:48:49 · 10 answers · asked by Anonymous

choices:

time required for diffusion
elasticity of the plasma membrane
surface area-to-volume ratio
presence of only one nucleus

2006-12-13 13:29:26 · 8 answers · asked by Anonymous

These parents had 2 green-eyed children and one brown-eyed child and I was told this is impossible. Is it?

2006-12-13 13:24:49 · 23 answers · asked by HARTaGOLD 2

2006-12-13 13:20:50 · 2 answers · asked by Anonymous