Tag Archives: BIOLOGY

LECTURE NOTES ON QUANTITATIVE PHYSIOLOGY

COURSE DESCRIPTION

Human systems physiology, including:  basic cellular physiology, neuromuscular, cardiovascular, respiratory, renal and gastro-intestinal physiology.  A quantitative, model-oriented approach to physiological systems is stressed.

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 Color / Full Page Slides (PDF Format) Printable (6 slides per page, black and white) Slides (PDF Format) Slides in Powerpoint (ppt) Format
1 Lecture 1 Lecture 1 Lecture 1
2 Lecture 2 Lecture 2 Lecture 2
3 Lecture 3 Lecture 3 Lecture 3
4 Lecture 4 Lecture 4 Lecture 4
5 Lecture 5 Lecture 5 Lecture 5
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DNA & Heredity Transcription & Translation

Protein Synthesis Involves Transcription & Translation

  • The 2 steps of protein synthesis:
    Process Where Major Components Notes
    Transcription In the nucleus DNA gene
    RNA polymerase    		 Gene is activated.
    A copy of the code is made from RNA (m-RNA)
    m-RNA leaves the nucleus, goes to cytoplasm.
    Translation In the cytoplasm, on the ribosomes m-RNA
    Ribosomes
    Peptidyl transferase enzyme
    Transfer RNAs    		 Ribosome decodes the m-RNA and makes the correct protein.
  • Keeping the main copy of the genes in the nucleus protects it from damage
  • There are many DNA repair mechanisms in the nucleus
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DNA, RNA & Heredity Genetic Code

Information is Stored in the Code Letters of DNA

  • All hereditary information is stored in genes, which are parts of giant DNA molecules
  • Genes code for the amino acids of proteins
  • DNA is the archival copy of the code- kept in nucleus where it is protected & repaired
  • DNA is organized with special proteins into chromosomes
  • For protein synthesis a working copy of the code is made from RNA
  • Overall scheme: DNA -> RNA -> protein
  • Another version: “One gene, one enzyme”

The Code is Based Upon the Structure of DNA

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CELL DIVISON

Reasons for Cell Division

  • Cell division is required for:
    • a) growth
    • b) repair & replacement of damaged parts
    • c) reproduction of the species

In Cell Division Copies of the DNA Must Be Sent to Both New Cells

  • Since the instructions for making cell parts are encoded in the DNA, each new cell must get a complete set of the DNA molecules
  • This requires that the DNA be copied (replicated, duplicated) before cell division

Genetic Blueprints for Cells Are Organized Into Chromosomes

  • The plans for making cells are coded in DNA
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Cells: Structure & Function

All Living Organisms are Made Up of Units Called Cells

  • Cell theory:
    • All living creatures are made from 1 or more cells
    • All cells are produced from previously existing cells (no spontaneous generation)
  • All cells appear to be descended from the first cell which existed about 4 billion years ago
  • For a species to exist its reproductive cells must be potentially immortal (no aging)
  • Our bodies start from a single cell and contain about 100,000,000,000,000 (10^13) cells at maturity

There Are 2 Basic Types of Cells: Prokaryotic and Eukaryotic

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BIOMEDICAL SALES JOB AT KOCHI

Job Description:

Minimum 5+ years of sales experience in Analytical /Biotechnology /Medical Instruments/Lab instruments / Industrial product Marketing , Can able to handle team of engineers, Achieving targets set by the company.

Desired Candidate Profile

Minimum 5+ years of sales experience in Analytical /Biotechnology /Medical Instruments/Lab instruments Marketing, Business Development and Customer Relationship Management, Can able to handle team of engineers, Achieving targets set by the company.

Experience Required: 5 – 10 Years

Education Required:

UG – B.Pharma – Pharmacy,B.Sc – Bio-Chemistry, Biology, Botany, Chemistry, Electronics, Microbiology,B.Tech/B.E. – Bio-Chemistry/Bio-Technology, Biomedical, Electronics/Telecomunication, Instrumentation, Mechanical,Diploma – Electronics/Telecomunication,Other Graduate PG – Any PG Course – Any Specialization

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