Summary of Chapter 7 from Biology A grobal Approach. This summary gives information about the structure of cells.
The summary is divided into the same subchapters als the original book. Prictures are also used to make the information easier to understand.
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Celbiologie
Chapter 7 Cell Structure and Function
Concept 7.2 Internal membranes
⚠ Bacteria and Archaea are prokaryotic and fungi, animals, and plants
are eukaryotic.
Comparing prokaryotic and eukaryotic cells
All cells are bounded by the plasma membrane. Which holds together the
semifluid inside the cells called cytosol. All cells have ribosomes, tiny
complexes that make proteins from mRNA.
The plasma membrane functions as a selective barrier that allows
passage of enough oxygen, nutrients, and wastes to service the entire
cell.
In eukaryotic cells, most of the DNA lies in the nucleus, which is bounded
with a double membrane.
Celbiologie 1
, In eukaryotic cells, the cytosol is the region between the nucleus and
plasma membrane.
In prokaryotic cells, the DNA is concentration in a region called the
nucleoid.
A Panoramic View of Eukaryotic Cells
The plasma membrane and organelle membrane also participate directly in
the cell's metabolism because enzymes are build into the membranes.
Celbiologie 2
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