Physics, Chemistry and Biology: Post your doubts here!

[Awesome12]

th

nx
and a (ii) nad b

In the first stem, water has moved out of the stem, causing a loss in turgor. the thickest part is at the edge, and as it loses water, they contract achieving such a shape.
In the second one, water is moving in by osmosis, and exerts a force on the sides of the stem creating a turgor causing it to achieve such a shape

In the experiment keep various variables constant apart from changing the conc. of the salt solution. Tabulate the conc. and length of the stem after each trial and tabulate it, as well keep on continuing the experiment until you obtain the outcome you want

 

[My Name]

In the first stem, water has moved out of the stem, causing a loss in turgor. the thickest part is at the edge, and as it loses water, they contract achieving such a shape.
In the second one, water is moving in by osmosis, and exerts a force on the sides of the stem creating a turgor causing it to achieve such a shape

In the experiment keep various variables constant apart from changing the conc. of the salt solution. Tabulate the conc. and length of the stem after each trial and tabulate it, as well keep on continuing the experiment until you obtain the outcome you want

i like ur answer but are u sure this is enuf details

 

[♣♠ Magnanimous ♣♠]

i like ur answer but are u sure this is enuf details

this is enough.

 

[Awesome12]

i like ur answer but are u sure this is enuf details

Give reference to the water potentials in the first part, and to the second, you have to mention in detail how will you carry it out, and what to keep constant. i just gave an overview

 

[My Name]

this is enough.

thank uim a bit freaked out icomeonline to take abreak sumtimes and clear my doubts XPC is vry helpfu anf un!

 

[Awesome12]

thank uim a bit freaked out icomeonline to take abreak sumtimes and clear my doubts XPC is vry helpfu anf un!

do pour out all your doubts here

 

[♣♠ Magnanimous ♣♠]

thank uim a bit freaked out icomeonline to take abreak sumtimes and clear my doubts XPC is vry helpfu anf un!

i got distinction is bio and i know mostly all concepts of it though i am just worried in giving answers due to my language.

 

[My Name]

do pour out all your doubts here

YUP SUre will thanks U ralyy r awsum awsum 12
and THANK U

 

[My Name]

OMG COOL and g

i got distinction is bio and i know mostly all concepts of it though i am just worried in giving answers due to my language.

ood luck btw are giving toher IGCSE

 

[♣♠ Magnanimous ♣♠]

OMG COOL and g

ood luck btw are giving toher IGCSE

i am giving as level exams.

 

[My Name]

i am giving as level exams.

 

[My Name]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s10_ms_61.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s10_qp_61.pdf
in question 1 part a (i) my drawing is tosimple can u tell me wat to do lplz send me a pic with labels i dont know here to label fiber!
i labelled narrow lumen and thick muscular wall
and in a(iii) why cant i compare capilaries when it says to se fig 1.1 which has capillaries!

part b(ii) can iuse this scale 1cm=3units foy y axis and 1cm=10 units for x axis
part b(iii)the blod vessel will eventually be back to its original diameter bcuz the walls of vessel are thich and elastc so they will regain there original shape and position
i think my answer wud score 2 maks can u give an asnwer which can score full!

and question 3
part a(i) do i need to writre 19/20 or is it ok if i write 19 only
part a(ii) i cant frame my answer propery! i wrote that dish b has tomatoe juice which dosenot let seeds to germinate

u asked me to pour all my doubts
THANK U in advance i really do appreciate it !!!

thanky u
Awesome12
AND

♣♠ Magnanimous ♣♠

 

[My Name]

wat i do is i solve one year on evariant onne seesssion
i note down my time i finsh in 35 to 40 minutes and 45 minutes max
i do not rechek my answer
then i check my anser frm mark scheme and wat i dont get i ask u guys!
i then calculate my marks get percentage and grade my self i havgot all A* ( the mark above the garde A is A* right??)and As
BUT i never get more than 85% wat do i doo!
i nevr go abouve that!!

 

[Awesome12]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s10_ms_61.pdf
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Biology (0610)/0610_s10_qp_61.pdf
in question 1 part a (i) my drawing is tosimple can u tell me wat to do lplz send me a pic with labels i dont know here to label fiber!
i labelled narrow lumen and thick muscular wall
and in a(iii) why cant i compare capilaries when it says to se fig 1.1 which has capillaries!

part b(ii) can iuse this scale 1cm=3units foy y axis and 1cm=10 units for x axis
part b(iii)the blod vessel will eventually be back to its original diameter bcuz the walls of vessel are thich and elastc so they will regain there original shape and position
i think my answer wud score 2 maks can u give an asnwer which can score full!

and question 3
part a(i) do i need to writre 19/20 or is it ok if i write 19 only
part a(ii) i cant frame my answer propery! i wrote that dish b has tomatoe juice which dosenot let seeds to germinate

u asked me to pour all my doubts
THANK U in advance i really do appreciate it !!!

thanky u
Awesome12
AND

♣♠ Magnanimous ♣♠

(a) i)


a (iii) Because there is no capillary. It is a vein

b (ii) Yes you can
b (iii) The arteries are able to withstand the high pressure of blood due to the thick elastic walls. As a result, they will return to their original figure


a (i) Yes
(ii) Due to the presence of tomato juice, water flows out of B (refer to osmotic pressures.etc). There might be another chemical in the juice which inhibits germination

 

[My Name]

(a) i)
View attachment 40409

a (iii) Because there is no capillary. It is a vein OOPSIE

b (ii) Yes you can OK
b (iii) The arteries are able to withstand the high pressure of blood due to the thick elastic walls. As a result, they will return to their original figure OK!


a (i) Yes u mean i have to write 19/20
(ii) Due to the presence of tomato juice, water flows out of B (refer to osmotic pressures.etc). There might be another chemical in the juice which inhibits germinationDID NOT Think mr osmosis was included UGHHH

 

[My Name]

thanyuuuu

 

[My Name]

now october november 2010
doubts
q1 b
q2 d(i) i wrote tis the are ling oragnism which attachthemselves to othe organisms and take nutrients and cause harm

 

[Awesome12]

For the 19/20, you can write both this 19/20, or 19

 

[Awesome12]

now october november 2010
doubts
q1 b
q2 d(i) i wrote tis the are ling oragnism which attachthemselves to othe organisms and take nutrients and cause harm

Link?

 

[My Name]

For the 19/20, you can write both this 19/20, or 19

okie!