1 The Effect of Molecular Weight on the Rate of Diffusion of Substances1 Alexander Ken Libranza Group 1 Sec. A – 1L March 6‚ 2012 A scientific paper submitted in partial fulfillment of the requirements in General Biology I laboratory under Prof. Cheryl M. Talde‚ 2nd sem.‚ 2011-2012. 1 2 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using two tests: the glass tube test and the agar-water gel test. In the glass tube set-up‚ two cotton plugs soaked
Premium Molecular diffusion Hydrochloric acid Ammonia
Shylinda Graystreete AIU Energy‚ Metabolism‚ and Cells- Unit 2-IP April 1‚ 2012 Professor Kelli Roberts Energy‚ Metabolism‚ and Cells Photosynthesis is the process that pretty much every organism on earth needs‚ because of the nutrients produced which is needed in order to live. Plants capture the energy from the sun and converts it into food that is needed by all plants and animals (including us as humans). In this process the chemical reaction which is known as photosynthesis‚ it takes
Premium Adenosine triphosphate Metabolism Glucose
Eukaryotic & Prokaryotic Cells Introduction: The Cell: The cell is a functional unit of all living organisms. Cells have evolved into two fundamentally different types‚ eukaryotic and prokaryotic‚ which can be distinguished on the basis of their structure and the complexity of their organization. The simplest organisms which consist of one cell are called prokaryotes. More complex organisms are called eukaryotes and they consist of many cells. Objectives: * Define the terms: Eukaryotes
Free Cell Eukaryote Bacteria
Chapter 35 Plant Structure‚ Growth‚ and Development Lecture Outline Overview: Plastic Plants? • The fanwort‚ an aquatic weed‚ demonstrates the great developmental plasticity that is characteristic of plants. o The fanwort has feathery underwater leaves and large‚ flat‚ floating surface leaves. o Both leaf types have genetically identical cells‚ but the dissimilar environments in which they develop cause different genes involved in leaf formation to be turned on or off.
Premium Plant anatomy Phloem Xylem
Persuasive Speech Earlier this year a man was diagnosed with papillary thyroid carcinoma. A cancer that is more common in females than in males. Though a very common cancer‚ this one went untreated for years due to the fact that it was unknown that he even had it. Now you may be asking yourself‚ did the man do anything to cause the cancer? The answer to that is no‚ the man up until then lived a relatively healthy life. Cancer effects all of us is some way shape or form. You may know someone
Premium Stem cell
non-membranous organelle ⁃ cell wall: peptidoglycan ⁃ binary fission ⁃ bacteria simple‚ dynamic‚ well adapted for survival and new environment ⁃ archaea pseudopeptidoglycan‚ extreme environment ⁃ eukaryotic ⁃ nucleus ⁃ multiple chromosomes ⁃ membranous and non-membranous organelle ⁃ no peptidoglycan ⁃ mitosis ⁃ algae photosynthetic‚ pigment‚ cellulose ⁃ fungi natural decomposer‚ chitin cell wall‚ absorbs organic material ⁃ protozoa no rigid cell wall‚ free entities or parasites
Free Bacteria Cell wall
I have been asked to investigate the effects of osmosis on potato cell sap. I will test potato cylinders in different strengths of sucrose solution and record any results in a table. I will then analyse my findings and work out the isotonic point of the potato cell sap. Prediction I have looked at my scientific knowledge from the background theory I carried out and I will base my prediction upon this information. In this experiment‚ I expect the different concentrations to show fairly noticeable
Premium Concentration Sucrose Measurement
Cell Growth and Reproduction Study Guide The Cell Cycle Study Guide Vocabulary – Cell Cycle‚ Mitosis‚ Cytokinesis 1. How did the G1 and G2 stages get their names? 2. Cells must pass through a critical checkpoint during which two stages of the cell cycle? 3. Where does DNA synthesis happen in eukaryotic cells? 4. What two processes make up the M stage? 5. Among different types of cells‚ which stage of the cell cycle varies most in length? 6. Why does a skin cell divide
Premium Mitosis Chromosome Cell
Imagine a busy factory making the latest must-have toy. Whether they make bicycles‚ cell phones‚ or hot air balloons‚ most factories are set up the same way. All factories have outside walls that protect and support them and inside walls that create different work areas. They usually have a production line where a product is put together and an executive department that decides what product is made. A finishing department processes and prepares the product for shipping‚ and a packaging department
Free Cell Endoplasmic reticulum Golgi apparatus
of stem cell research. Stem cells offer people hope by promising to greatly extend the number and range of patients who could benefit from transplants‚ and to provide novel therapies to treat debilitating diseases such as diabetes‚ Parkinson’s‚ Huntington’s‚ heart disease and stroke‚ as well as accidental damage such as spinal cord injury. So why would anyone object to research in this area? The problem is simply that a particular type of stem cell‚ which potentially could provide many cell types for
Premium Stem cell Cellular differentiation