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Well I'm not too good in biologybut atleast we would get 2 or maybe 3 marks for thati wrote the same as u but i do not think it is good enough for 4 marks
Me tooi think i will lose marks here are there and most probably get above 48 or 49. Praying that i am thinking right )))))
Mode of action: prevents cross links from developingthere was also question about the penicilin
This is a reference from the diagramThen I wrote that peptidoglycan is not on the external surface and the outer layer prevented it from reaching inside and there are no transport proteins for its transport
The question clearly mentioned that positive did NOT have outer membrane but only a thick layer of peptidoglycanits because g positive has the complementary carbohydrate side chains
-observe and draw plan diagrams of the structure of the walls of the trachea, bronchi, bronchioles and alveoli indicating the distribution of cartilage, ciliated epithelium, goblet cells, smooth muscle, squamous epithelium and blood vessels
-observe and draw the structure of red blood cells, monocytes, neutrophils and lymphocytes using prepared slides and photomicrograph
-make annotated drawings, using prepared slides of cross-sections, to show how leaves of xerophytic plants are adapted to reduce water loss by transpiration
-draw and label from prepared slides the structure of xylem vessel elements, phloem sieve tube elements and companion cells and be able to recognise these using the light microscope
-draw and label from prepared slides the cells in the different tissues in roots, stems and leaves of herbaceous dicotyledonous plants using transverse and longitudinal sections
-draw and label from prepared slides plan diagrams of transverse sections of stems, roots and leaves of herbaceous dicotyledonous plants using an eyepiece graticule to show tissues in correct proportions (see 1.1c)
-observe and draw the mitotic stages visible in temporary root tip squash preparations and in prepared slides of root tips of species such as those of Vicia faba and Allium cepa
The last link is not working...can u plz post a screenshot of it?Hello all. Here are some websites that I found useful for the histology part of paper 3.
respiratory system:
https://www.histology.leeds.ac.uk/respiratory/conducting.php
medcell.med.yale.edu/histology/respiratory_system_lab.php (scroll down to the 'slides' section
blood:
https://www.histology.leeds.ac.uk/blood/blood_wbc.php
plants(has other stuff too, but it is plant micrographs that are relevant):
http://www.sttss.edu.hk/biology/photomicrograph/bio photo.htm
I'm posting this based off of the following points in the sullabus:
Fixed the link.The last link is not working...can u plz post a screenshot of it?
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