Physics, Chemistry and Biology: Post your doubts here!

[Rahma Abdelrahman]

Could someone help me in Biology (0610) NOV.1999 Q37 I think the answer must be B but the answer in de ms is D, So which one is correct?

B is correct!
This Q. is repeated in nov. 2002 Q37, you can check the mark scheme for that!

 

[Student of the year]

can someone plz help me with these questions

6 The blockage of which blood vessel causes a heart attack?
A aorta
B coronary artery
C pulmonary artery
D pulmonary vein


13 Which procedure would reduce soil erosion?
A allowing large numbers of sheep to graze on grassland
B changing sloping farmland into terraced fields
C cutting down rainforests for agricultural use
D reducing the number of trees on hillsides

 

[Student of the year]

plz answer these questions someone

 

[Rahma Abdelrahman]

can someone plz help me with these questions

6 The blockage of which blood vessel causes a heart attack?
A aorta
B coronary artery
C pulmonary artery
D pulmonary vein


13 Which procedure would reduce soil erosion?
A allowing large numbers of sheep to graze on grassland
B changing sloping farmland into terraced fields
C cutting down rainforests for agricultural use
D reducing the number of trees on hillsides

6- Coronary artery
13- B

 

[Rahma Abdelrahman]

plz answer these questions someone

13- B
10- I think it's B
9- B
8- I believe it's B as alcohol affects the whole nervous system
7- C
6- B
Any doubts?

 

[Usama96]

13- B
10- I think it's B
9- B
8- I believe it's B as alcohol affects the whole nervous system
7- C
6- B
Any doubts?

I think Q.7 answer is D bcz the leaf is dipped in warm water to soften it

 

[Student of the year]

13- B
10- I think it's B
9- B
8- I believe it's B as alcohol affects the whole nervous system
7- C
6- B
Any doubts?

can u plz explain q7 & q6

and i feel that the ans for q10 should be d, as here its asexual reproduction happening so no zygote is formed, right??
and acc to ur explaination of q8 the ans should be d

 

[Rahma Abdelrahman]

I think Q.7 answer is D bcz the leaf is dipped in warm water to soften it

Yes, sorry ur right!

 

[Abu mota]

13- B
10- I think it's B
9- B
8- I believe it's B as alcohol affects the whole nervous system
7- C
6- B
Any doubts?

shudnt 8 be D?
shudnt 10 be D also? because they dont have the same parent, i think :/

 

[Rahma Abdelrahman]

can u plz explain q7 & q6

and i feel that the ans for q10 should be d, as here its asexual reproduction happening so no zygote is formed, right??
and acc to ur explaination of q8 the ans should be a.

Sorry , Q. 7 is D not C as warm water should be there to make the leaf soft
Q6 It is a fact to be memorised
The Q. asks: which is NOT true?

But D is true!​

Q8 asks about TIME TAKEN not SPEED!
And 10 is D, SORRY!

 

[Rahma Abdelrahman]

shudnt 8 be D?
shudnt 10 be D also? because they dont have the same parent, i think :/

It is A, it asks Time not speed.
But for 10, they have the same parent, it is ASEXUAL reproduction.

 

[Student of the year]

Sorry , Q. 7 is D not C as warm water should be there to make the leaf soft
Q6 It is a fact to be memorised
The Q. asks: which is NOT true?

But D is true!​

Q8 asks about TIME TAKEN not SPEED!
And 10 is D, SORRY!

jazakallah & sorry for the q10.
but could u explain why was the leaf added to alcohol & water to test for starch in q7
& also how did u derive the correct ans.

 

[Abu mota]

It is A, it asks Time not speed.
But for 10, they have the same parent, it is ASEXUAL reproduction.

yea ur right for Q.10 i didnt read the part where it said cut into two srry, i thought they are different potatoes
but for Q.8 the time increases for the nerve impulse to pass, impulse travels slower under the effect of alchohol

 

[AAnsarii]

Yes, sorry ur right!

cn u plz xplain dis?

 

[AAnsarii]

13- B
10- I think it's B
9- B
8- I believe it's B as alcohol affects the whole nervous system
7- C
6- B
Any doubts?

8-won't it b D? both times increase?

 

[Student of the year]

cn u plz xplain dis?

could u post some difficult & important questions..... plz....

 

[Lost_Life]

Could someone help me in Biology (0610) NOV.1999 Q37 I think the answer must be B but the answer in de ms is D, So which one is correct?

i think it should have been B....

 

[The sun]

B is correct!
This Q. is repeated in nov. 2002 Q37, you can check the mark scheme for that!

I know it was repeated but I just got confused and couldn't remember in which exam, btw thnx for reminding me

 

[The sun]

i think it should have been B....

thnx for ur help

 

[Rahma Abdelrahman]

Abu mota , Student of the year, AAnsarii and everyone else , Q8 is D, and 10 is B.
(I THINK I HAVE MESSED UP HERE, THIS IS JUST A CORRECTION, OK!)