End of testing for beta version of Biology blogging
Hi all,
This will be the last post for mg-biology for the year 2005 (hopefully). To all who participated in this beta version, thank you for your time. I hope all have benefitted from this although the response have not been instantaneous as it should be.
Nontheless, if any of you wants to give feedback, you may comment on this blog after your 'A' levels.
Btw, to better benefit the students of NY, the coming year 2006, this blog will be revamp and i am looking for students (all ex-NY are welcomed) to be administrators of the blog, to share your thoughts and bio stuff.
To end off, all the best to all NY students in their bio papers!
Cheers
MG
Core Essay 2004
This is the questions as requested by one student:
7 (a) Outline the differences in structure between aminoacids and nucleotides. [6]
(b) Explain, with examples, the structural differencesbetween fibrous and globular proteins. [6]
(c) Describe, with examples, the roles of proteins inmembranes. [8]
8 (a) Describe the main features of homologous chromosomes. [6]
(b) Outline the behaviour of chromosomes in meiosis. [8]
(c) Explain the need for a reduction division in meiosis. [6]
9 (a) Describe the main structural features of arteries inrelation to their functions. [8]
(b) Explain the significance of the difference in affinity foroxygen between haemoglobin and myoglobin. [6]
(c) Outline with examples, the main roles of capillaries. [6]
10 (a) Describe the main stages of the Calvin cycle. [8]
(b) Outline the role of NADP in photosynthesis. [6]
(c) Explain how ATP is synthesized using light energy in photosynthesis. [6]
11 (a) Outline the structure of xylem vessels in relation totheir function. [6]
(b) Describe the way in which water passes from root haircells to the leaves. [8]
(c) Explain why transpiration is the inevitable consequenceof gaseous exchange. [6]
MG
Energy Transfer and role of glycolipid + protein
Hi all,
For vinesh: The energy transfer between trophic levels will refer to the energy that is available to the next trophic level.
For example: The energy that is available to the primary consumer from the producers will be the amount of food that is actually absorbed into the consumer.
For meng choo: Am sure there are info on that in the notes.
Glycolipids - cholesterol, etc.
Glycoproteins - Receptors, cell to cell recognition, etc.
MG
