Bismillahirrahmanirrahim
Assalamualaikum~
So today, I am going to continue my entry from last week about Prokaryotic and Eukaryotic Cells.
This time, we learnt about components of prokaryotic cell. Before starting our lesson, we answered some questions to test our understanding on this topic.
I encountered some new terms such as glycocalyx, beta lactamase and teichoic acid. We also learn the differences between between gram +ve and gram -ve bacteria. Gram +ve bacteria has teichoic acid and lipoteichoic acid in its thick cell wall. Meanwhile, gram -ve bacteria has thin cell wall and contain lipopolysaccharides which acts as an endotoxin. The advantage that gram -ve bacteria has over gram +ve bacteria is, it has outer membrane and wider periplasmic space that enable them to avoid phagocytosis, resistant towards antibiotic and digestive enzymes. Beta-lactamase is a type of enzyme found in periplasmic space.This enzyme can digest beta-lactam ring in antibiotic.
We also learn about flagella, glycocalyx, axial filaments and fimbriae and pili which are the structures external to the cell wall. On the other hand, structures internal to the cell wall are plasma membrane, cytoplasm, nuclear area, ribosome and inclusions. Now i know that there are actually many types of inclusion such as polysaccharide granule, lipid inclusions, sulfur granules, carboxysome, gas vacuoles and magnetosomes.
I do learn a lot of new things and really enjoying that.
Till next time, sayonara~
-izzah
So today, I am going to continue my entry from last week about Prokaryotic and Eukaryotic Cells.This time, we learnt about components of prokaryotic cell. Before starting our lesson, we answered some questions to test our understanding on this topic.
I encountered some new terms such as glycocalyx, beta lactamase and teichoic acid. We also learn the differences between between gram +ve and gram -ve bacteria. Gram +ve bacteria has teichoic acid and lipoteichoic acid in its thick cell wall. Meanwhile, gram -ve bacteria has thin cell wall and contain lipopolysaccharides which acts as an endotoxin. The advantage that gram -ve bacteria has over gram +ve bacteria is, it has outer membrane and wider periplasmic space that enable them to avoid phagocytosis, resistant towards antibiotic and digestive enzymes. Beta-lactamase is a type of enzyme found in periplasmic space.This enzyme can digest beta-lactam ring in antibiotic. We also learn about flagella, glycocalyx, axial filaments and fimbriae and pili which are the structures external to the cell wall. On the other hand, structures internal to the cell wall are plasma membrane, cytoplasm, nuclear area, ribosome and inclusions. Now i know that there are actually many types of inclusion such as polysaccharide granule, lipid inclusions, sulfur granules, carboxysome, gas vacuoles and magnetosomes.I do learn a lot of new things and really enjoying that.
Till next time, sayonara~
-izzah
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