socy 141 mid term review

socy 141 mid term review - BENG 100 Midterm Review Midterm...

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

View Full Document Right Arrow Icon
BENG 100 Midterm Review Midterm 03-06-08 Lectures 1a and 1b: Jan 16, 18 Chapter 1, 2, 4 Introduction to Biomedical Engineering, Biochemistry and Physiology Biomedical Engineering (BME) o Definition: “Engineering applied to human health” o Subdivisions of BME Physiological Modeling Mathematical models of systems Biomedical Instrumentation Screening and repair devices (examples below) Biomedical Imaging Screening technology, ex. MRI, ultrasound, computed topography (CT) Biomechanics Studying performance of humans as mechanical objects Biomolecular Engineering Pharmokinetic analysis—studying patterns of drug absorption and metabolism Also Chemical engineering—drug study, production and delivery Artificial Organs Imitating organic systems using synthetic materials Systems Biology and Bioinformatics Development of models of biological function Genetic and Cellular Engineering- manipulation of cells, new cell and DNA technology Two major forms of BME technology: o Screening tools for analysis and study ex. thermometer, x-ray, MRI, EKG, ultrasound, ELISA o Tools for repair and replacement ex. contact lenses, prosthetic limbs, artificial hip, vaccines, drug delivery systems Importance of understanding Human Physiology to be good BME o Humans: complex multi-celled organisms Cells Tissue Organ Organism o Homeostasis: Constant internal environment maintained in body Maintaining constant weight, temperature, body mass, pH Crucial factor in maintaining healthy body Regulated by body feedback systems Macromolecules: Four major building blocks of the body
Background image of page 1

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

View Full DocumentRight Arrow Icon
o Polymers- large molecules made from monomers through chemical process of polymerization Synthetic polymers: man-made o Carbohydrates Polysaccharides (sugars) composed of monosaccharide monomers Source of energy for body ATP—releases lots of energy when broken down o Nucleic Acids Composed of nucleotide monomers o Proteins Composed of amino acid monomers Crucial but complex—polypeptide chains of amino acids created through transcription and translation from genetic information from DNA o Lipids (not polymers? But also large molecules) Phospholipids Composed of polar hydrophilic head and two hydrophobic fatty acid tails Phospholipid bilayer: composes porous cell membranes— hydrophobic tails in facing one another, hydrophilic polar heads out, facing in to cell cytoplasm and out to extracellular matrix Forms of Transport across PLBL cell membrane: o Passive diffusion: high conc. to low conc. Through PLBL-small, uncharged polar molecules o Facilitated diffusion: large polar molecules and ions, high to low but larger so must go through channels o Active Transport: low to high—against natural gradient, so must be pumped through channels using ATP energy Lectures 2a and 2b: Jan 23, 25 (also Jan 30) Chapter 3 Nucleic Acids and Proteins, Genetic Engineering and Recombinant DNA Technology
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 05/06/2008 for the course SOCY 141 taught by Professor Philipsmith during the Spring '07 term at Yale.

Page1 / 13

socy 141 mid term review - BENG 100 Midterm Review Midterm...

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