Biology; Chemistry; Physics: Post your doubts here!

[peacce]

Does pH affect seed germination?

Yes it does as far as i know

 

[♣♠ Magnanimous ♣♠]

@♣♠ Magnanimous ♣♠
some help here

bro, just see this diagram.. if there is any addition than do tell i have not labelled other parts.

 

[Awesome12]

Awesome12

bro, just see this diagram.. if there is any addition than do tell i have not labelled other parts. View attachment 41350

Thanks

 

[♣♠ Magnanimous ♣♠]

Thanks

and you have to label some more parts for more marks i think so.
no probs bro.

 

[Awesome12]

What is purpose of forth in some expeeiments?

 

[asadalam]

What is purpose of forth in some expeeiments?

Do you mean froth?

 

[exploded diper]

Thanks

Rnt both diagrams different....

 

[asadalam]

design an experiment to show the effect of substrate concentration/enzyme conc on enzyme activity

can you give 2 experiments that show this

 

[peacce]

design an experiment to show the effect of substrate concentration/enzyme conc on enzyme activity

can you give 2 experiments that show this

where did u find dis? oh god.. the more experiments ppl r askng here the more tensed i become

 

[asadalam]

where did u find dis? oh god.. the more experiments ppl r askng here the more tensed i become

i read it somewhere.Awesome12

 

[exploded diper]

design an experiment to show the effect of substrate concentration/enzyme conc on enzyme activity

can you give 2 experiments that show this

Do u know two.....or do u want us to give u...
Take five test tube...having different subsrtrate cons eg (1 M... 2M etc..)...keep every thing constant in each. Tube..such as temp,ph,amount of enzyme, same period of time.after 15 minutes...test each test tube for whatever substrate.....eg using benedict if enzymes works better thn less colour change.
In the other one keep the conc if substrate same but enzyme having diffrent conc...
Test it.....

 

[Awesome12]

Do you mean froth?

Check Oct/Nov p4 (dont remember whether it was 62 or 61), but in that experiment they mentioned froth

 

[asadalam]

funky brat
design an experiment to show the effect of substrate concentration/enzyme conc on enzyme activity

can you give 2 experiments that show this

 

[Laibaaa]

Whats the difference between nitrifying bacteria, nitrogen fixing bacteria, denitrifying bacteria and i think there was another too? :/
Haaalp. Im dieing here

 

[Awesome12]

i read it somewhere.Awesome12

Take 5 test-tubes
We will add the same amount of enzyme(amylase) in each test tube. However, add different but known concentrations of substrate (starch) in each test-tube. Keep the temperature constant for each of them. Then place each of them on a balance, and measure mass. Measure masses of test-tubes in equal intervals. Note down results. Make a graph. Repeat and take avg
Do the same but this time vary the conc. of substrate

 

[exploded diper]

[ ......

Check Oct/Nov p4 (dont remember whether it was 62 or 61), but in that experiment they mentioned froth

Maybe its the froth collected....which can be used to measure rate of experiment ...as in froth made over sum time......

 

[Awesome12]

[ ......

Maybe its the froth collected....which can be used to measure rate of experiment ...as in froth made over sum time......

No they had froth over yeast

 

[Awesome12]

Whats the difference between nitrifying bacteria, nitrogen fixing bacteria, denitrifying bacteria and i think there was another too? :/
Haaalp. Im dieing here

http://www.s-cool.co.uk/gcse/biology/environment/revise-it/cycling-through-nature

 

[exploded diper]

Take 5 test-tubes
We will add the same amount of enzyme(amylase) in each test tube. However, add different but known concentrations of substrate (starch) in each test-tube. Keep the temperature constant for each of them. Then place each of them on a balance, and measure mass. Measure masses of test-tubes in equal intervals. Note down results. Make a graph. Repeat and take avg
Do the same but this time vary the conc. of substrate

Y mass....wouldnt it stay same...its nit as if enzyme is making mass dissapear...

 

[Awesome12]

Y mass....wouldnt it stay same...its nit as if enzyme is making mass dissapear...

Yeah you are right. Testing with Benedict and then observing colour depth is much more better