Gce 'O' level pure biology (5096) aftermath report

last SG · 2008-10-31T18:24:59+00:00

I am not sure man. I think RBD cant pass thru the capillaries right?

Theguiltshow SG

Hmmm, I wrote platelets and plasma. Because white blood cells yup, do not block micoorganisms from entering. Plasma produces the thrombokinase right..? Can't remember, haha.

Haha platelets produce thrombokinase. I hope they'll accept fibrinogen, which is unlikely. Anyone thinks otherwise? *is hopeful*

Occam's Razor SG

actually receptors detect the change, but I don't see any wrong if one did or did not write hypothalamus

its damaged blood vessels, tissues and platelets that release thrombokinase, not plasma

+ i would really like to know who did 11 E cause its damn difficult

Scotchtape SG

I hope occam's razor is correct I wrote WBC & blood platelets too!

iamapebble SG

Haha platelets produce thrombokinase. I hope they'll accept fibrinogen, which is unlikely. Anyone thinks otherwise? *is hopeful*

Hmmmm, I guess you have to hope that you are not 1 mark -touch wood- away from your A1 or something can already :)

iamapebble SG

Ahhhhh I see I see :D So I'm wrong! Haha. Anyway the part on hypothalamus, it's because davidche wrote that and thought he was wrong, so I'm telling him that it is actually correct. :)

I saw the E and immediately went to do O. Hahaha!

Occam's Razor SG

the enzyme Q im in doubt (3m sia )= )

the Q asked to draw the molecules present after complete digestion of proteins

so i drew amino acids, seemed like my class half amino acids, half polypep

the following Q asked what type of enzyme is involved in this digestion
so i put protease.

Theguiltshow SG

I drew everything broken up, HAHA. Yeah I put protease too. My friend put pepsin.

iamapebble SG

I was confused by the freaking complete digestion too. But I didn't go with my instinct so I drew polypeptides, which I think a.a should be right actually.

Type.. I wrote it's a type of protein. T.T

Occam's Razor SG

i wanted to leave a note like ultima previously suggested, but too lazy.

I heard if moderate a1 cant go beyond 85, is this true?

iamapebble SG

i wanted to leave a note like ultima previously suggested, but too lazy.

I heard if moderate a1 cant go beyond 85, is this true?

I wanted to too after I checked the paper thoroughly, which is.. when I have to stop writing. =[

Is it.. but I thought maths can easily go up to 90..

Occam's Razor SG

I don't know but if 85 then can secure a1 already sia, but mcq i think might throw some tricky Q, must be careful

The_innocent SG

The first answer for genotpye is I^AI^O or I^BI^O?

Occam's Razor SG

I^A I^O

The_innocent SG

got one qns they ask protect the body, prevent the entry of bacteria

if i put lymphocytes and phagocytes will they give me one mark?

Theguiltshow SG

got one qns they ask protect the body, prevent the entry of bacteria

if i put lymphocytes and phagocytes will they give me one mark?

I think so. Since they're both WBCs.

davidche SG

Thanks for your comments of my mistakes. Feel abit better. Yeah for the proteins i put all seperate .

davidche SG

is the second one BB or BO

Theguiltshow SG

is the second one BB or BO

They asked for possibilities. I put both, both are possible :)

davidche SG

ok so it is BB or BO. Cool. And i was bothered by if the letter is sub script or super script. So that one minus 2 marks cos i wrote sub script. Gosh shouldnt have doubted myself. I changed it last min.

Theguiltshow SG

Yup, it is! But I'm not sure if they'll only give marks if you write ALL the possibilities, which are both. Did you? It's okay, I always doubt myself and regret it. Like the substance which is present at A, B, C, D and E, I put carbon dioxide, then cancelled and put urea, then cancelled and put carbon dioxide, then cancelled and put urea... I cancelled a total of 4 times and ended up with carbon dioxide which I'm hoping will be accepted because it's a metabolic waste product and urine formation is under Excretion... :P

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