AQA BIOL2 ~ 21 May 2012 ~ AS Biology

Original post by Mocking_bird

"The appearance, ultrastructure and function of
• cell wall
• chloroplasts."

So it's not specifically saying "LEARN STROMA", but it would be wise to as you can mention that it contains enzymes and all.

will it be in the toole and toole aqa green textbook

Reply 667

Original post by Mocking_bird

"The appearance, ultrastructure and function of
• cell wall
• chloroplasts."

So it's not specifically saying "LEARN STROMA", but it would be wise to as you can mention that it contains enzymes and all.

Reply 668

Mocking_bird

11

Original post by dongonaeatu

will it be in the toole and toole aqa green textbook

I don't know, I don't have it sorry.

Edit: nevermind, yes I do. Nelsons thorne book? I'm sure it will be, just have a nosey

Reply 669

Original post by Mocking_bird

I don't know, I don't have it sorry.

well what textbook do you use? it is exclusively endorsed by aqa so what textbook do you use.

Reply 670

Original post by Mocking_bird

I don't know, I don't have it sorry.

Edit: nevermind, yes I do. Nelsons thorne book? I'm sure it will be, just have a nosey

yes it says nelson thornes on it on the side. Thank you for clearing it
up

Reply 671

thegodofgod

19

Original post by dongonaeatu

yes it says nelson thornes on it on the side. Thank you for clearing it
up

The stroma is essentially the chloroplast's version of the matrix in mitochondria; aqueous fluid containing enzymes / other proteins, where reactions occur.

Reply 672

kristy-jade

Original post by dongonaeatu

i never learnt that and i dont think it's in the cgp guide.

It is in the cap guide but it doesn't go into much detail on this area, however you don't really need to know much mo than what it is really.

Reply 673

Original post by thegodofgod

The stroma is essentially the chloroplast's version of the matrix in mitochondria; aqueous fluid containing enzymes / other proteins, where reactions occur.

Edging closer to some endosymbiotic theory here.

Reply 674

Mocking_bird

11

Original post by stoppy123

Describe the function of tissue fluid (4)

Give 2 structural features of veins that adapt them to their function (4)

Why are plant cell walls made out of? (1)

Why do genetic bottlenecks reduce diversity? (3)

In mitosis, name the phase in which the chromatids(chromosomes?) line up at the equator? (1)

Name 2 things that reduce diversity (Not genetic bottlenecks) (2)

Only just saw this! Thank you :hugs:

Will do them tomorrow as it is late now. :frown:

Reply 675

Original post by Mocking_bird

Only just saw this! Thank you :hugs:

Will do them tomorrow as it is late now. :frown:

Already mentally done them, but don't want to spoil it for the rest of the TSR users. :smile:

Reply 676

Mocking_bird

11

Original post by stoppy123

Describe the function of tissue fluid (4)

Give 2 structural features of veins that adapt them to their function (4)

Why are plant cell walls made out of? (1)

Why do genetic bottlenecks reduce diversity? (3)

In mitosis, name the phase in which the chromatids(chromosomes?) line up at the equator? (1)

Name 2 things that reduce diversity (Not genetic bottlenecks) (2)

Answers:

Spoiler

.

Not sure if you want some in return but here you go anyway :smile:

(Anyone feel free to answer them too!)

1) Explain why it may be more useful to calculate the index of diversity than to record only the number of species present (2)
2) Give the 4 ways rate of transpiration can be effected (4)
3) If there are 300 amino acids in a sequence, how many bases is this? (1)
4) What is the difference between interspecific variation and intraspecific variation? (2)
5) Explain the bohr effect

Reply 677

Original post by Mocking_bird

Answers:

Spoiler

.

Not sure if you want some in return but here you go anyway :smile:

(Anyone feel free to answer them too!)

1) Explain why it may be more useful to calculate the index of diversity than to record only the number of species present (2)
2) Give the 4 ways rate of transpiration can be effected (4)
3) If there are 300 amino acids in a sequence, how many bases is this? (1)
4) What is the difference between interspecific variation and intraspecific variation? (2)
5) Explain the bohr effect

1. index of diversity takes into account number of species present and number of different types of species
2. Light, temperature, humidity and wind
3.3 bases code for 1 amino acid, so 300 amino acids means 900 bases.
4.i dont know, is inter between different species and intra the difference's in the same species?
5. bohr effect something about co2 released when muscles respire so more haemoglobin goes to it and unloads o2

did i do ok

1.What is a DNA made of
2. Explain 3 main differences between mitosis and meiosis
3.explain how an antibiotic can kill/inhibit a bacteria
4. Explain the function of an xylem

(edited 11 years ago)

Reply 678