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A level Biology: Post your doubts here!
coiling forms teritary structure wheras quatenary is due to multiple polypeptides combing togther. -
A level Biology: Post your doubts here!
Question 2 is D these are the densitie you wil have to remeber. Question 11 is B as a quatenary structure means more than one polypeptide chain coiled togther. -
A level Biology: Post your doubts here!
Carrier proteins increase the rate of diffusion by allowing more solute to enter the cell. Hence it is C. -
A level Biology: Post your doubts here!
http://archive.bio.ed.ac.uk/jdeacon/microbes/nitrogen.htm -
A level Biology: Post your doubts here!
As you can see it is aerobic and anaerobic depending on the bacterium used, however as you see the question says soil conditions so we consider Free living bacteria in soils not the symbiotic ones hence it is an aerobic process. All the nitrogen-fixing organisms are prokaryotes (bacteria). Some... -
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A level Biology: Post your doubts here!
I have a question, I know using a calibrated eye piece graticule has no parallex error but does a stage micrometer have one? -
A level Biology: Post your doubts here!
Can you help me with this question? -
A level Biology: Post your doubts here!
its fine at least u are explaining it to me THAT MATTERS. -
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A level Biology: Post your doubts here!
I am with you brah. I was actually doing fine with paper 1 a couple of months ago so i decided to leave the rest for later and now i realised i am not doing that well at all. Any ways Allhamdulilah Lola-sweet and qwertypoi are here. Thank you guys so much. -
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