CHEM AND BIO HELP AND TIPS HERE

[SNA]

Could someone please help me check my answers here are the questions sorry they are many at once hope they are clear in attachment ??

1. D
2. A
3. A
4. B ( not sure )
5. D
 Hope it helped!

[8T]

1. D
2. A
3. A
4. B ( not sure )
5. D
 Hope it helped!

Damn straight it helped
Thanks hope someone else could continue !

[SNA]

Umm may june 09 q9 could someone tell me briefly why is it A ?
Link:www.freeexampapers.us/IGCSE/Biology/CIE/2009%20Jun/0610_s09_qp_1.pdf

water leaves the vacuole by osmosis. Vacuole shrinks,the cytoplasm and cell membrane are pulled away from cell wall.cell is plasmolysed.

[SNA]

Damn straight it helped
Thanks hope someone else could continue !

haha..im gonna be here all day,well if my mom doesnt force me to sleep..
im too fired up to even sleep.tomorrow is my last paper!

[8T]

water leaves the vacuole by osmosis. Vacuole shrinks,the cytoplasm and cell membrane are pulled away from cell wall.cell is plasmolysed.

UR BRILLIANT
+Rep 4 u now

[Vin]

Could someone please help me check my answers here are the questions sorry they are many at once hope they are clear in attachment ??

1.C
2.A
3.A
4.B
5.D
6.D
7.D
8.B
9.B (not sure-sh*t i forgot)
10.B
11.A
12.B

^^someone pls. crosscheck..

[8T]

haha..im gonna be here all day,well if my mom doesnt force me to sleep..
im too fired up to even sleep.tomorrow is my last paper!

Same here but i have to so imana go .
Sleep well u will need it
Byee !

[the_grim_reaper]

Same here but i have to so imana go .
Sleep well u will need it
Byee !

HAhahaha same here!!! Last paper tomorrow!!!!! I'm no fan of CIE but at least they managed to wrap up all our papers before the world cup!!!!

[Ivo]

By the way can human excrete carbon dioxide?  What else can they excrete then?

[8T]

1.C
2.A
3.A
4.B
5.D
6.D
7.D
8.B
9.B (not sure-sh*t i forgot)
10.B
11.A
12.B

^^someone pls. crosscheck..

I think so but one i thoiught it would be in vagina so D
and hormone in 6 i think progesterone ...
Thanks A LOT anyway

[8T]

By the way can human excrete carbon dioxide?  What else can they excrete then?

YES urea, water, excess salts and ions,Hormone & toxins breakdowns i guess thtss it

[Vin]

I think so but one i thoiught it would be in vagina so D
and hormone in 6 i think progesterone ...
Thanks A LOT anyway

I'm quite sure about 1.

6 or 9? I'll conform it somehow..

EDIT:: Yes, its progesterone. Thanks

[Ivo]

Please can someone answer my doubts.

[SNA]

1.C
2.A
3.A
4.B
5.D
6.D
7.D
8.B
9.B (not sure-sh*t i forgot)
10.B
11.A
12.B

^^someone pls. crosscheck..

for 1, im quite sure that IUCD is used at the uterus. and for 9, it is progesterone.
to 8T,sorry i only answered half of it.did not realize that there was another half to it!

[SNA]

UR BRILLIANT
+Rep 4 u now

haha....thanks!