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Cell nucleus

ap biology chapter1 ppt

Subject: 
Biology
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Bacteriology
Archaea
Cell Biology
Evolutionary biology
organelles
Prokaryote
Domain
bacteria
evolution
Cell nucleus
Eukaryote
Biology

0 1 Introduction: Evolution and the Foundations of Biology Overview: Inquiring About Life An organism?s adaptations to its environment are the result of evolution For example, a beach mouse?s light, dappled fur acts as camouflage, allowing the mouse to blend into its surroundings Inland mice of the same species are darker in color, matching their surroundings Evolution is the process of change that has transformed life on Earth Figure 1.1 Figure 1.2 Biology is the scientific study of life Biologists ask questions such as How does a single cell develop into an organism? How does the human mind work? How do different forms of life in a forest interact? Concept 1.1: Studying the diverse forms of life reveals common themes

The Nucleus

Subject: 
Biology
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Biology
Cell Biology
Membrane biology
organelles
Protein families
Lamin
Cell nucleus
Nuclear pore
Nuclear lamina
Nuclear membrane
Nucleolus
LMNA

The Nucleus Functions of the nucleus Storage of genes on chromosomes Transportation of regulatory factors & gene products via nuclear pores Separation of: DNA from cytosol Transcription from translation Organisation of: genes into chromosomes (to allow cell division) uncoiling of DNA to replicate key genes Production of: messenger RNA ( mRNA ) that code for proteins ribosomal RNA (rRNA) in the nucleolus Components within the nucleus Nuclear envelope: double membrane, each membrane is a phospholipid bilayer Nuclear pore: controls entry and exit from the nucleus e.g. of RNA proteins Nuclear lamina: a series of structural proteins found on the inner membrane of the nuclear envelope, provide structural support Nuclear matrix: scaffold proteins Nucleoplasm: viscous medium

The Nucleus

Subject: 
Biology
Rating: 
0
No votes yet
Tags: 
Biology
Cell Biology
Membrane biology
organelles
Protein families
Lamin
Cell nucleus
Nuclear pore
Nuclear lamina
Nuclear membrane
Nucleolus
LMNA

The Nucleus Functions of the nucleus Storage of genes on chromosomes Transportation of regulatory factors & gene products via nuclear pores Separation of: DNA from cytosol Transcription from translation Organisation of: genes into chromosomes (to allow cell division) uncoiling of DNA to replicate key genes Production of: messenger RNA ( mRNA ) that code for proteins ribosomal RNA (rRNA) in the nucleolus Components within the nucleus Nuclear envelope: double membrane, each membrane is a phospholipid bilayer Nuclear pore: controls entry and exit from the nucleus e.g. of RNA proteins Nuclear lamina: a series of structural proteins found on the inner membrane of the nuclear envelope, provide structural support Nuclear matrix: scaffold proteins Nucleoplasm: viscous medium
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