AQA Biology Unit B2 (Higher Tier) REVISION NOTES

Here is a Portable Document Format (.pdf) version of some revision notes I made for myself for the January 2009 AQA Module 2 Biology Higher Tier examination. It covers all topics, perhaps not to the detail required for your own personal understanding. Note that these were not designed with general use in mind, but I thought I might as well upload them after I had used them. There may be some mistakes with the English, but there should not be anything wrong with the actual science. Finally, my apologies for the low quality of reproduction during conversion to .pdf. Contact me for the original Microsoft Word 2007 document, which is much larger and cannot be successfully converted to an earlier version of Word Document - believe me, I've tried!

HideShow resource information
  • Created by: Jackarias
  • Created on: 13-01-09 21:47

Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]

Cells
· All animals and plants are made of cells.
· Animal cells and plant cells have features in common, such as a nucleus, cytoplasm,
cell membrane, mitochondria and ribosomes.
· Plant cells also have a cell wall, and…

Page 3

Preview of page 3
· Good examples of specialist cells are sperm, eggs, red blood cells and nerve cells.
· For example, a sperm cell's function is to fertilise an egg cell:
Page 1111 of 16161616

Page 4

Preview of page 4

Page 5

Preview of page 5
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]
o The head contains genetic information and an enzyme to help penetrate the
egg cell membrane. o The middle section is packed with mitochondria for energy. o
The tail moves the sperm to the egg.
· Another example are…

Page 6

Preview of page 6

Page 7

Preview of page 7
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]
·
Osmosisisimportanttoplants.Theygainwaterbyosmosisthroughtheirroots.
W
atermovesintoplantcellsbyosmosis,makingthemturgidorstiffsotheythatable
toholdtheplantupright.


Plants
· Green plants absorb light energy using chlorophyll in their leaves. They use it to react
carbon dioxide with water to make a sugar called glucose. The glucose is used in
respiration, or…

Page 8

Preview of page 8
. 3.
C a ­ enters leaf from surrounding air.
r b o n d i o x i d e 4.

W a ­ comes from soil; up the roots and steam; into leaf.
ter
Page 3333 of 16161616

Page 9

Preview of page 9

Page 10

Preview of page 10
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]
· Three factors can limit the speed of photosynthesis ­ light intensity, carbon dioxide
concentration and temperature.
· There are three important graphs to show the rate of photosynthesis:
Light provides energy needed
CO
2

is one of the…

Comments

saad

Report

Thanks this is great for my Biology test. But one thing it is Deoxyribonucleic acid, not deoxyribose nucleic acid.

Similar Biology resources:

See all Biology resources »

AQA Biology Unit B2 (Higher Tier) REVISION NOTES

Here is a Portable Document Format (.pdf) version of some revision notes I made for myself for the January 2009 AQA Module 2 Biology Higher Tier examination. It covers all topics, perhaps not to the detail required for your own personal understanding. Note that these were not designed with general use in mind, but I thought I might as well upload them after I had used them. There may be some mistakes with the English, but there should not be anything wrong with the actual science. Finally, my apologies for the low quality of reproduction during conversion to .pdf. Contact me for the original Microsoft Word 2007 document, which is much larger and cannot be successfully converted to an earlier version of Word Document - believe me, I've tried!

  • Created by: Jackarias
  • Created on: 13-01-09 21:47

Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]

Cells
· All animals and plants are made of cells.
· Animal cells and plant cells have features in common, such as a nucleus, cytoplasm,
cell membrane, mitochondria and ribosomes.
· Plant cells also have a cell wall, and…

Page 3

Preview of page 3
· Good examples of specialist cells are sperm, eggs, red blood cells and nerve cells.
· For example, a sperm cell's function is to fertilise an egg cell:
Page 1111 of 16161616

Page 4

Preview of page 4

Page 5

Preview of page 5
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]
o The head contains genetic information and an enzyme to help penetrate the
egg cell membrane. o The middle section is packed with mitochondria for energy. o
The tail moves the sperm to the egg.
· Another example are…

Page 6

Preview of page 6

Page 7

Preview of page 7
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]
·
Osmosisisimportanttoplants.Theygainwaterbyosmosisthroughtheirroots.
W
atermovesintoplantcellsbyosmosis,makingthemturgidorstiffsotheythatable
toholdtheplantupright.


Plants
· Green plants absorb light energy using chlorophyll in their leaves. They use it to react
carbon dioxide with water to make a sugar called glucose. The glucose is used in
respiration, or…

Page 8

Preview of page 8
. 3.
C a ­ enters leaf from surrounding air.
r b o n d i o x i d e 4.

W a ­ comes from soil; up the roots and steam; into leaf.
ter
Page 3333 of 16161616

Page 9

Preview of page 9

Page 10

Preview of page 10
EXAM 12th Jan 09 @ 9am [BIOLOGY UNIT 2 REVISION NOTES]
· Three factors can limit the speed of photosynthesis ­ light intensity, carbon dioxide
concentration and temperature.
· There are three important graphs to show the rate of photosynthesis:
Light provides energy needed
CO
2

is one of the…

Comments

saad

Report

Thanks this is great for my Biology test. But one thing it is Deoxyribonucleic acid, not deoxyribose nucleic acid.