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Unit 2 Biology Edexcel 2012

d_94

7

How are people revising for this exam ? And any prediction on what's going to come?

Reply 1

cisne

6

Original post by d_94

How are people revising for this exam ? And any prediction on what's going to come?

revising by doing topicwise pastpapers.....i think one question will come from sampling methods...and procaryotes and eukaryotes......wht do u think???? hw r u revising???

Reply 2

d_94

OP

7

I'm revising. But I don't feel that I have much time to finish fully. With solving all the past-papers and questions from other books. What did you get in AS Bio.? Did you do Unit 1 Bio.?

Reply 3

cisne

6

Original post by d_94

I'm revising. But I don't feel that I have much time to finish fully. With solving all the past-papers and questions from other books. What did you get in AS Bio.? Did you do Unit 1 Bio.?

Yes I did on this January,but for the first time.Do you have any notes for unit 2?

Reply 4

arnab

11

anyone using the CGP book as their main source of revision?

Reply 5

d_94

OP

7

Original post by arnab

anyone using the CGP book as their main source of revision?

Wish I had that book. Do you have any resources for Unit 2 Bio. ?

Reply 6

cisne

6

Mitochondria are organelles found in eukaryotes. Biologists think that mitochondria originated from prokaryotes. Suggest 2 structural features of mitochondria that provide evidence for this theory. need an answer,please...

Reply 7

cisne

6

http://www.biologycorner.com/bio1/cellcycle.html , check this out.....might be helpful...revice well friends..best of luck

Reply 8

arnab

11

Original post by cisne

Mitochondria are organelles found in eukaryotes. Biologists think that mitochondria originated from prokaryotes. Suggest 2 structural features of mitochondria that provide evidence for this theory. need an answer,please...

errm they are small??

Reply 9

d_94

OP

7

Original post by cisne

Mitochondria are organelles found in Eukaryote. Biologists think that mitochondria originated from Prokaryotes. Suggest 2 structural features of mitochondria that provide evidence for this theory. Need an answer, please...

I'm not sure how to answer it, but I'll give it a try...

I think that because Biologists think that they evolved from Prokaryotes (ex.bacteria); because both mitochondria and chloroplasts have their own DNA and can manufacture their own proteins.

I'm also guessing that maybe they have the same DNA/RNA, ribosomes, or even the same enzymes, as inside the mitochondria contain enzymes for respiration....

Hope it answers your question [:

Reply 10

cisne

6

Original post by arnab

errm they are small??

is that correct? i mean i don't know how t answer to that question,... :confused:

Reply 11

d_94

OP

7

Original post by cisne

is that correct? i mean i don't know how t answer to that question,... :confused:

I'm not sure if it is correct. Check online to make suree.

Reply 12

cisne

6

Original post by d_94

I'm not sure how to answer it, but I'll give it a try...

I think that because Biologists think that they evolved from Prokaryotes (ex.bacteria); because both mitochondria and chloroplasts have their own DNA and can manufacture their own proteins.

I'm also guessing that maybe they have the same DNA/RNA, ribosomes, or even the same enzymes, as inside the mitochondria contain enzymes for respiration....

Hope it answers your question [:

yeh may be.. thought about darwins theory but didnt knew how to write a simple answer,that was for 2 marks....thanks..

Reply 13

d_94

OP

7

Original post by cisne

yeh may be.. thought about darwins theory but didnt knew how to write a simple answer,that was for 2 marks....thanks..

Welcomee. (: What do you think you will get in this exam??

Reply 14

cisne

6

Original post by d_94

Welcomee. (: What do you think you will get in this exam??

obviously i aim for an A* ...but think its impossible...yet, i'll try my level best..Insha Allah i can get an A* if i try :smile:

not only me...anybody can get if they try...right???

Reply 15

arnab

11

Original post by cisne

obviously i aim for an A* ...but think its impossible...yet, i'll try my level best..Insha Allah i can get an A* if i try :smile:

not only me...anybody can get if they try...right???

yess course u can....with hard work and a BIT of luck, anyfing is possible. btw i am aiming for an A* too, so that way, evn if i get B at chem, it should make up for it!

Reply 16

cisne

6

Original post by arnab

yess course u can....with hard work and a BIT of luck, anyfing is possible. btw i am aiming for an A* too, so that way, evn if i get B at chem, it should make up for it!