nucleus and ribosomes
DESCRIPTION
NUCLEUS AND RIBOSOMES. Mary Francis Baxter, Morgan Good, Hannah Moore, Cathie Quamme AP Bio Period 1&2. Chromatin. Found in eukaryotic plant and animal cells. Located within the nucleus. Is a network of condensed strands - PowerPoint PPT PresentationTRANSCRIPT
Mary Francis Baxter, Morgan Good, Hannah Moore, Cathie QuammeAP Bio
Period 1&2
NUCLEUS AND RIBOSOMES
Found in eukaryotic plant and animal cells. Located within the nucleus. Is a network of condensed strands - coil into rod-like structures called chromosomes during
mitosis May cause ATR-X syndrome - mutations of the ATR-X gene have higher chance of
mental retardation, along with facial and skeletal abnormalities Chromatin is similar to a library in that it storesinformation, and not every chromatin is the same or perfect, just as library books aren’t.
CHROMATIN
Is a structural knot of chromatin. Responsible for the manufacture of ribosomes. Present in eukaryotic plant and animal cells. May cause Parkinson’s disease, a neurological disorder
-this occurs when nucleoli do not efficiently carry out protein synthesis, making the cells defective.
NUCLEOLUS
Is similar to a factory in that both the nucleolus and a factory produce multiples of the same product, being the ribosomes, and also in that both a factory and nucleoli are thrown off in their production greatly when a small malfunction occurs.
NUCLEAR PORE
• Each cell have multiple pore, each being a pathway for the cell to import and export proteins, and export RNA.
• Responsible for the synthesis of RNA .• Found in eukaryotic plant and animal cells.• Can cause various viruses such a HIV
-the nucleolus can allow things into the cell whih are harmful, then the nucleus can intensify these. • similar to a river in that different substances
flow to a new place, and by it’s path-like structure.
CHROMOSOMES
• carry genetic info.• equal number of c-somes. • are divded between daughter cells during nuclear
division.• contain DNA and some RNA.• found in eukaryotes (animal and plant).• can cause down syndrome among many others. • are much like nurses because they help deliver/care for
babies who are basically big bundles of genetic info <3• AND much like nurses work in hospitals which are like
eukaryotic cells because of all their various wards, like a cells organelles.
RIBOSOMES• can be found in all prokaryotic and eukaryotic organisms.
• are either free-floating in the cytoplasm or attached to the endoplasmic reticulum.
• make proteins by connecting amino acids into long chains. • have 2 subunits, which are different for eukaryotic and prokaryotic cells. • are much like construction workers, because they connect the amino acids
one at a time and because they build a long chain of them. Some scientists believe that ribosome dysfunction lead to Alzheimer’s disease, Diamond Blackfan Anemia, and gastric cancer
C’EST LA FINI!