'Nuclear pores' diaporamas de présentation

Chapter 6 A Tour of the Cell

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Cell Structure Chapter 7

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Unit 2: Cytology

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Unit 2: Cytology

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An Introduction to Electron Microscopy

An Introduction to Electron Microscopy. many of the images within this module are courtesy of Robert R. Cardell, Ph.D. and originally were taken from : Fine Structure of Cells and Tissues by Keith R. Porter and Mary A. Bonneville.

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Cell Interactions with Biomaterials

Cell Interactions with Biomaterials. Topics: Cell Structure and Components Properties of Cell Components Interaction of Cells with Extracellular Material (ECM) Cell Adhesion and Migration.

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3.4: Transcription and Translation

3.4: Transcription and Translation. DNA directs the activities of the cell by controlling the proteins the cell produces. This determines what the cell becomes, what it synthesizes, and how it functions Gene Protein occurs in 2 steps Transcription and Translation

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Cell organelles and protein trafficking

Cell biology 2014 (Revised 23/1 -14) Note handout concerning endosomes/lysosomes. Lecture 3: . Cell organelles and protein trafficking . Chapter 12 699-702 713-714 723-739 743-745. Chapter 13 749-751 754-800 809. A lot of reading!

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Protein Synthesis

Protein Synthesis. Jessica Hawley. Protein Synthesis. Protein Synthesis. dna. DNA contains genes sequences of nucleotide bases These Genes code for polypeptides (proteins) Proteins are used to build cells and do much of the work inside cells

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Cell Structure

Cell Structure. What is the role of the cell nucleus? What are the functions of vacuoles, lysosomes, and the cytoskeleton? What organelles help make and transport proteins? What are the functions of chloroplasts and mitochondria? What is the function of the cell membrane?.

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Cell Organelles and Features

Cell Organelles and Features. Plasma/Cell Membrane. Found in both prokaryotes and eukaryotes Structure: Composed of: phospholipids, cholesterol, and proteins Organization: Phospholipids form a bilayer Proteins and cholesterol are embedded in the bilayer. Cell-Membrane = Fluid Mosaic Model.

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Cell structure & Function

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DNA-The Double Helix

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Biotechnology: DNA Recap

Biotechnology: DNA Recap. Transcription and Translation. The Central Dogma. DNA ? RNA ? Protein. Transcription . DNA ? RNA DNA (double stranded) is transcribed in the NUCLEUS with the aid of an enzyme called RNA polymerase. . Transcription.

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Remember!

Remember!. Genes are DNA sequences that actually code for proteins! We talked about how we inherit our genes from our moms & dads, but how are the genes actually expressed? Protein Synthesis!. Protein Synthesis. DNA ? RNA ? Proteins Protein Synthesis (making proteins from your genes)

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Nucleus & Nucleolus

Nucleus & Nucleolus. By Dan Intartaglio & Joel Skivington. History. -Discovered in 1831 by Scottish botanist Robert Brown -Suggested the nucleus played a key role in fertilization and development of the embryo in plants -Name (nucleus) derived from the Latin word for kernel/nut.

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Topic 3: The Chemistry of Life

Topic 3: The Chemistry of Life. 3.5 Transcription and Translation. 3.5.1 Compare the structure of RNA and DNA. 3.5.1 Compare the structure of RNA and DNA. 3.5.2 Outline DNA transcription in terms of the formation of an RNA strand complementary to the DNA strand by RNA polymerase.

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DNA to Protein 2013

DNA to Protein 2013. DNA DNA Replication DNA RNA Transcription RNA Protein Translation. DNA- D NA nucleus Transcription Unwinds Separates Enzyme-Helicase, single strand binding protein

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NUCLEUS

NUCLEUS. By Sarah White & Eryn McDonald. Parts Of The Nucleus . Nucleus .

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Cell Structure

Cell Structure . Cell Structure . Cytoplasm Fluid material in which the cell contents are suspended 75% - 90% water Cytoskeleton framework of protein fibres Microtubules : hollow rods which keep organelles in place + move them around cell

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