Combined Science (BIOLOGY)

**dkhemlani** · 06-11-2009, 11:50 PM

How was the paper tdy? Hard or easy?

**Feline** · 07-11-2009, 01:44 AM

It was reasonably easy. Although I didn't understand that question on how the structure of a root hair cell helps it take in water and mineral salts.

**Stjh** · 07-11-2009, 10:45 AM

for the root hair cell, i wrote things like how the extended part increases the surface area and stuff like that.

i thought the paper was average. some hard questions. but some easy to answer.

._. i only knew about tar and nicotine for smoking ): didn't think of carbon monoxide.

**sebastgostudy** · 07-11-2009, 01:22 PM

qn 1 is small intestine right? i go put jejunum... can or not ??

the one on sewage system. what the air for ah? so tricky. i go put is to attract bacteria to growth and multiply and thus eat up the harmful sewage particles.

for coronary heart disease
i say it is the clotting of blood vessel which affect the functioning of blood transport... can?

section B is challenging i took qn 6 and 7

qn 6b i got 2 m at most only know how to explain increase SA for absorption of water

qn7 b) i draw diagram to show the energy loss. so fun draw hawk ,tree caterpillar. xD

**dkhemlani** · 07-11-2009, 03:32 PM

What did y'all write for the effect of smoking on lungs?

Yeah, i dont know about the sewage on either...and also about the :1 ratio question

**sebastgostudy** · 07-11-2009, 10:10 PM

Quote:

Originally Posted by dkhemlani

What did y'all write for the effect of smoking on lungs?

Yeah, i dont know about the sewage on either...and also about the :1 ratio question

Nicotine cause inflammation which cause severe breathlessness. Tar cause lung cancer will affect the functioning / health of lung.

:1 ratio? Which part? I thought should be easy.

Man i wonder i put jejunum is wrong or not T.T....

**dkhemlani** · 07-11-2009, 10:12 PM

Quote:

Originally Posted by sebastgostudy

Nicotine cause inflammation which cause severe breathlessness. Tar cause lung cancer will affect the functioning / health of lung.

:1 ratio? Which part? I thought should be easy.

Man i wonder i put jejunum is wrong or not T.T....

Hey, no, i dont think jejunum is wrong...easyyy??? I think I lost marks here and there already man for the first section, esp. the sewage and ratio question... The 23:7 question.. those were hardd!

**-chocomint** · 07-11-2009, 10:20 PM

It's like a thinking paper man. Previously bio was like memorising stuffs & vomiting it out.

**dkhemlani** · 07-11-2009, 10:26 PM

Quote:

Originally Posted by -chocomint

It's like a thinking paper man. Previously bio was like memorising stuffs & vomiting it out.

So was it easy or hard for you?

I thought it was okay, but more to the hard side..

**sufiyan** · 07-11-2009, 10:42 PM

I smell moderation..

**dkhemlani** · 07-11-2009, 10:53 PM

Moderation? pretty worried la

**GeeX3BabyX3** · 07-11-2009, 11:11 PM

its just okay

**sufiyan** · 08-11-2009, 12:00 PM

Yeah ,moderation .Chem paper was easier than Bio

**sebastgostudy** · 08-11-2009, 07:45 PM

Quote:

Originally Posted by dkhemlani

Hey, no, i dont think jejunum is wrong...easyyy??? I think I lost marks here and there already man for the first section, esp. the sewage and ratio question... The 23:7 question.. those were hardd!

oh i wrote

because the scientist experiment with few plants. outcome is inaccurate. larger number of plants = accurate result. the 3:1 ratio act as a guide only as the offspring are totally random in real life. Hope jejunum right lor T.T

**-chocomint** · 10-11-2009, 06:33 PM

Quote:

Originally Posted by dkhemlani

So was it easy or hard for you?

I thought it was okay, but more to the hard side..

Hmm. I agree that its more to the hard side too.