A level Biology: Post your doubts here!

[Snowysangel]

M

maximum rate wouldn't increase either .. Cuz if only u inc the substrate con. Then there are more chances of the substrate to bind with the enzyme ... And if the substrate con ain't increasing then.. The rate would stop as in no further reaction.
And yeah no competitive don't cuz they alter the shape of the active site so the substrate can NEVER bind with the enzyme ..

But the maximum rate of reaction would occur without the inhibitors and that has a constant value :S

 

[DeViL gURl B)]

Ye

But the maximum rate of reaction would occur without the inhibitors and that has a constant value :S

Yeah that is when no inhibitor.and the substrate has finished

 

[DeViL gURl B)]

Ye


Yeah that is when no inhibitor.and the substrate has finished

Or .. The all the active sites are filled

 

[♣♠ Magnanimous ♣♠]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Biology (9700)/9700_s13_qp_11.pdf

Question 4 ?

It c because the radius of the circle covers 50 eyepiece divisions and 100 um is 40 eyepiece graticule divisions so 50/40 x 100 is 125

 

[BeBeskii108]

But if the substrate concentration doesn't increase then neither does the maximum RATE of reaction right? I'm sorry it's a little confusing, cause noncompetetive inhibitors don't reduce the MAXIMUM rate of reaction either

I think so.

 

[♣♠ Magnanimous ♣♠]

 

[Sarah_3420]

guys can u tell me why no.1 2006 october november Paper 1 is B? please help

 

[♣♠ Magnanimous ♣♠]

 

[Snowysangel]

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C cause chloroplasts are membrane bound organelles

 

[DeViL gURl B)]

View attachment 41560

1 ,3 and 4 is the answer that is C

 

[♣♠ Magnanimous ♣♠]

1 ,3 and 4 is the answer that is C

why?

 

[♣♠ Magnanimous ♣♠]

C cause chloroplasts are membrane bound organelles

ok.

 

[thats_me]

View attachment 41560

Is it c?

 

[♣♠ Magnanimous ♣♠]

yeah

Is it c?

 

[DeViL gURl B)]

why?

Cuz prokaryotes don't have cellulose in there cell wall.. They've got Murein and peptidoglycan in there cell wall

 

[♣♠ Magnanimous ♣♠]

Cuz prokaryotes don't have cellulose in there cell wall.. They've got Murein and peptidoglycan in there cell wall

hey i forgot that, thanks..

 

[DeViL gURl B)]

hey i forgot that, thanks..

U're welcome

 

[thats_me]

View attachment 41561

d? Convert 2 cm to micrometer I.e 20000
So 1 RBC is 7 micrometers
How many can fit in 20000 micrometers
20000/7 = 2857 I.e 2.9*10^3

 

[♣♠ Magnanimous ♣♠]

d? Convert 2 cm to micrometer I.e 20000
So 1 RBC is 7 micrometers
How many can fit in 20000 micrometers
20000/7 = 2857 I.e 2.9*10^3

lol... i tried to convert the mew in cm..

 

[Exo_luhan]

http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_w11_qp_11.pdf

Q14?? sum1 plz explain