DETERMINATION OF THE WATER POTENTIAL OF POTATO TUBER CELLS. Method. Five sucrose solutions with varying molarity and one control containing distilled water were prepared and poured into test tubes. The potato discs were dried‚ weighed and added to the test tubes. The discs were then weighed again after a period of 24 hours. The percentage change in mass was then calculated. Apparatus.  Specimen tubes with stoppers x6  1cm3 diameter cork borer  razor
Premium Osmosis Concentration Solution
without a microscope because they are so small‚ but they are in the air‚ on our skin‚ in our bodies‚ in the ground‚ and all throughout nature. Bacteria are single-celled microorganisms. Their cell structure is unique in that they don’t have a nucleus and most bacteria have cell walls similar to plant cells. They come in all sorts of shapes including rods‚ spirals‚ and spheres. Some bacteria can "swim" around using long tails called flagella. Others just hang out or glide along. Are bacteria dangerous
Premium Bacteria
STARWARD ACADEMY WORKSHEET # 2 MOMENTUM DUE: 1. Calculate the momentum of an object if: (a) its mass is 4.0 kg and its velocity is 8.0 ms-1 (b) its mass is 500 kg and its velocity is 3.0 kms-1 (c) a force of 20 N is applied to it for 6.0 s and it moves from rest (d) its mass is 2.0 kg and it falls from rest for 10 s (assuming g = 10 ms-1 or 10 Nkg-1). 2. A car of 1200 kg is pushed along a level road by two men. If they use a force of 800 N and frictional forces acting against
Premium Mass Force Friction
Site Plan | I. Neurons/nerve cells A neuron is a cell specialized to conduct electrochemical impulses called nerve impulses or action potentials. Neuron is the main cellular component of the nervous system‚ a specialized type of cell that integrates electrochemical activity of the other neurons that are connected to it and that propagates that integrated activity to other neurons. They are the basic information processing structures in the CNS.
Premium Neuron Action potential
University of Phoenix Material Nutrition and Health Worksheet Use Ch. 1 of Contemporary Nutrition‚ Ch. 2 of Visualizing Nutrition‚ supplemental course materials‚ the University Library‚ the Internet‚ or other resources to answer the following questions. Your response to each question should be 75 to 100 words. 1. What is nutrition? Why is nutrition essential to our daily lives? Nutrition the science that links food to health and disease the science of nutrition studies several processes
Premium Nutrition Obesity
Artif Biology Project – Do You Agree With the Creation of This Artificial Cell? Introduction The aim for this project is to find out the positive and negative impacts of the creation of a new artificial cell called Cinthya (Annex N.1)‚ how can it be used positively in different fields‚ and at last‚ if I personally agree with the creation of Artificial Cells. In this project I will inform you about the uses of Artificial Cells in medicine and other subjects‚ if there are any drawbacks and finally
Premium Gene Organism DNA
ksheetIntroduction to computers Directions: Fill in the blank. 1. Microcomputers‚ different from those giant mainframes and supercomputers‚ are designed for individuals. In fact‚ the microcomputer is often called the PC 2. DESKTOP and LAPTOP computers are the most commonly seen microcomputers. 3. Just like human beings‚ computers communicate through receiving and sending messages. We refer to those message receiving components as INPUT devices and those which send messages as OUTPUT
Premium Personal computer Computer Computer program
University of Phoenix Material Psychodynamic Personality Theories Matrix Using the text for this course‚ the University Library‚ the Internet‚ and/or other resources‚ complete the following table. |Theory |Assumptions |Reliability |Validity |Application | |Psychoanalytic Theory |Psychoanalytic theory originated with the |Based on his observations
Premium Psychoanalysis Psychology Personality psychology
CAREER DEVELOPMENT PORTFOLIO LISTENING AND NOTE TAKING IN THE WORKPLACE Write how you will demonstrate the listed listening and note-taking skills for future employers. 1. Finding meaning and interest in new information and projects Attentive listening and note taking are the essential tools in a workplace for receiving new information and do projects assigned. 2. Showing interest and being prepared Ways to show interest and be prepare for work include: Stay attentive which involves
Premium Learning Educational psychology Skill
Write 50- to 200-word responses to each of the following questions based your findings. Use your own words and provide examples to support your answers. 1. What topic did you choose? Discuss the position of each of the two articles you selected. The topic I choose is coffee‚ the two articles I selected to discuss about coffees advantage and disadvantage. The first article’s title is called “Coffee drinking causes low birth weight in babies and prolonged birth”. This article discuss about
Premium Coffee Nutrition