Most Sought After Biology Notes

Most Sought After Biology Notes

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Tuesday, 30 June 2015

QuickEasy Note + Teknik Menjawab - Absorption Process in the Small Intestine

Today, we shall embark on the quest to fully understand the absorption process in the small intestine. First, observe the diagram of a villus below:


The arrows show the direction of nutrients in the absorption processes. First, you see the nutrients are absorbed into the thin epithelium cells. Second, the nutrients are either absorbed into the blood capillary or the lacteal.

These are the two points that would give you perfect marks in the examination if you mention them. The perfect details are shown below:



Now you know the points. Let's apply them with the question example below:


"Describe the absorption process of the end product of protein in the small intestine". (3 marks).


PERFECT ANSWER OUTLINE:
____________________________________________________________________
The end product of protein is amino acid. (1 mark).
First, amino acid is absorbed through the thin epithelial cells of the villi using facilitated diffusion (1 mark).
Then, the amino acid is absorbed into the bloodstream into the liver for assimilation (1 mark).
____________________________________________________________________

REMINDER:

1. The highlighted terms are sought by the paper examiner to give you full mark.

2. Leave out the hepatic portal vein and liver because they are part of assimilation, not absorption, unless required by the question.


RESPECTO.


QUICKEASY - Understanding Auxin Graph

Here is the quickeasy way to understand the auxin graph. We just need to divide the graph into 3 level of auxin concentration. The description of the effect of auxin to shoot and root is given below:






REMINDER:

1. The red-circled ones are frequently asked in the SPM. 


RESPECTO.


PS: I realize i haven't been working on this blog for almost a month. It's quite hard to do that if you are a speaker who have to attend 40++ schools while travelling around Malaysia to finish up your Master's project paper within 2 months length. Still, I shall deliver what I do best in this blog, especially for the upcoming SPM Trial.