B1 101 Lab Blog

Part I – Transcription and Translation Overview - how genes work      Genes produce proteins that regulate chemical reactions inside the cell      2 step process           1)Transcription in the nucleus                make messenger mRNA from DNA templates using base-pairing rules           2)Translation in the cytoplasm – production of the protein                Make protein with mRNA and   transfer RNA Materials: Excel, computer Exercise: Simulation of Transcription and Translation in Excel 

  Overview of Cell Division      Asexual cell division – mitosis      Cloning or copying of parent cell           Exact Duplication           Occurs throughout the body of multicellular animals, plants                Growth, Healing/Repair of tissues, and Regeneration Materials: Microscope, Onion, slide, and dye Exercise: Examine the whole mount slide of onion mitosis (Cell division) and identify all stages:  Interphase, Prophase, Metaphase, Anaphase, and Telophase 

 Today's Lab - Study 3 aspects of Photosynthesis Part 1: Use of energy from sunlight     exercise: prepare chromatography paper with chlorophyll extract      materials: chlorophyll extract, TLC strips,  solution (IKI), capillary tube Part 2: Storage of chemical energy      exercise: starch stored in underground tubers     materials: microscope, potato starch, dye

 Todays Lab - Study Different aspects of Diffusion and Osmosis     Part 1 - Study of role of energy - Brownian Movement     Part 2 - Role of membranes and tonicity  materials: Microscope Charcoal solution  Sodium Chloride Exercise: Examine Brownian movement

 Learn parts and use of the Light Microscope     Different types of microscopes     materials: compound microscope, dissecting scope, various slides     exercise: learning compound scope and dissecting scope