Chapter 6

Chapter 6 - Chapter 6 Ap Biology Cytology science/study of...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 6 Ap. Biology - Cytology: science/study of cells o Light microscopy Resolving power Measure of clarity o Electron Microscopy TEM Electron beam to study cell ultra structure SEM Electron beam to study cell surface o Cell Fractionation Cell separation Organelles study o Ultracentrifuges Cell fractionation - Cell Prokaryotic o Nucleoid DNA concentration o No organelles with membranes o Ribosomes Protein synthesis o Plasma membrane All cells Semi-permeable o Cytoplasm/Cytosol (all cells) - Cell size o As cell size increases, the surface area to volume rotation decreases o Rates of chemical exchange may then be inadequate for cell size o Cell size, therefore, remains small - Nucleus o Genetic material Chromatin Uncondensed Chromosomes Condensed Chromatin and Chromosomes are DNA + Protein o rRNA responsible for ribosome synthesis o nuclear envelope double membrane envelope with pores o Protein Synthesis (mRNA) DNA – RNA- mRNA
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
- Ribosomes Protein manufacture o Free: Cytosol Protein function in cell o Bound Endoplasmic reticulum Membranes Organelles and export - Endomembrane System Collection of organelles in Eukaryotic cells that can easily transfer materials amongst one another o Smooth ER No ribosomes Synthesis of lipids Hormones Metabolism of carbohydrates o Glycogen – glucose in liver Detoxification of drugs and poisons o Rough ER With ribosomes Synthesis of secretary proteins( glycoproteins), membrane production o Golgi apparatus Anything gland ER products are modified, stores, and shipped Cisternae : flattened membranous sacs Transport vesicles
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/31/2011 for the course BIO 102 taught by Professor Robinson during the Spring '09 term at UPenn.

Page1 / 7

Chapter 6 - Chapter 6 Ap Biology Cytology science/study of...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online