CHEM AND BIO HELP AND TIPS HERE

[sarasa]

What will happen if electricity was passed through:
(a) Sugar solution
(b)ethanol solution
I know that sugar and ethanol are NON electrolytes but isn't a sloution means there is water so H+ and OH- will be there? So will H2 and O2 be produced or not?

Thank u in advance

[Angel Of Love]

no because H+ and OH- ions will only be conducted when the solution is aqueous.

[Cool guy]

hey nid 404 can ua answer that y the urine sample of preganant women is taken???

[nid404]

hey nid 404 can ua answer that y the urine sample of preganant women is taken???

HCG(human chorionic gonadotrophin)..this is present in the urine of pregnant women..so testing for HCG in urine determines whether a woman is pregnant or not

You want to know more?

[K_M]

Just a clarification: After the blood plasma leak through the capillary walls, the RBCs and proteins pass through the Henle's loop where absorption of glucose and other substances are absorbed? And the reabsorption of water happens in the Henle's loop or just before the collecting duct?

[nid404]

loop of henle

[K_M]

Can someone please help me with the nitrogen cycle?

I came across this question in one of the papers, don't remember exactly which one, but for 4 marks we had to explain the breakdown of amino acids in the liver. Can you please give me the answer to that
thanks in advance!

[DEGO]

hey nid 404 can ua answer that y the urine sample of preganant women is taken???

to test the ESTROGEN AND PROGESTERONE LEVEL IN THE URINE

[nid404]

Can someone please help me with the nitrogen cycle?

I came across this question in one of the papers, don't remember exactly which one, but for 4 marks we had to explain the breakdown of amino acids in the liver. Can you please give me the answer to that
thanks in advance!

post the question...i won't know how to phrase my answer
anyway check this http://www.nicksnowden.net/Module_3_pages/nitrogen_cycle.htm

@DEGO-they test for HCG

[haris94]

whats loop of henle?
i hv never heard of it...........is it in igcse syllabus?

[Saladin]

The loop of Henle is a u shaped part of the tubule that mainly re-absorbs sodium chloride and water.

[K_M]

post the question...i won't know how to phrase my answer
anyway check this http://www.nicksnowden.net/Module_3_pages/nitrogen_cycle.htm

@DEGO-they test for HCG

the question is describe what happens to amino acids inside liver cells.
is the answer the liver sends the amino acids in the blood stream to be distributed to all parts of the body. Excess amino acids are stored in the body after the ammonia from them is removed and converted into urea which is sent by the liver to the kidneys to be excreted.

[The Golden Girl =D]

the question is describe what happens to amino acids inside liver cells.
is the answer the liver sends the amino acids in the blood stream to be distributed to all parts of the body. Excess amino acids are stored in the body after the ammonia from them is removed and converted into urea which is sent by the liver to the kidneys to be excreted.

nope , actually the answer is abit longer and diff ...

1.excess amino acids r deaminated"broken down" by liver to form ammonia , ammonia combines with CO2 to from urea .
2.liver maintains an amino acid pool
3.amino acids r changed into plasma proteins and transported by blood to al body parts , and some amino acids change into liver protien to be used by the liver.

hope i helped

[The Golden Girl =D]

to test the ESTROGEN AND PROGESTERONE LEVEL IN THE URINE

srry but i don't get it ! ....can someone explain to me y doctors take urine sample from pregnant ladies ?

[The Golden Girl =D]

i kno i posted alot today   ... anyways i am just wondering where can i find the marking scheme of the old years in chemistry IGCSE paper 1 .