. Na+ and K+. K+ was more concentrated inside the cell while Na+ was more concentrated outside the cell. 2. A cell is at rest without any implications of changing the potential. 3. 4. 5. K+ is more permeable than Na+ in a resting neuron. This is because there are few sodium leakage channels. 6. Since the resting membrane potential is the potential difference between the inside and outside of the cell across the membrane‚ a change would depend on the resting permeability of the membrane to ions.
Premium
Introduction Using microscopes allows humans to see things they’ve otherwise would have never seen before‚ like cells. A cell is the basic unit of life. All living things are made of cells. All cells come from preexisting cells through a process called cellular division. There are two types of cells‚ eukaryotes and prokaryotes. Prokaryotes are very simple and small. They are unicellular and have no membrane bound organelles. Their DNA is found directly in the cytoplasm since they have no nucleus
Premium Cell Organelle Eukaryote
2) How does a universal genetic code relate to the hypotheses about the origin of life on Earth?Universal Genetic code would indicate that all organisms descended from a common ancestor‚ seeing how all organsims share a universal genetic code. 3) How are self-replicating molecules‚ such as RNA molecules in the “RNA World” hypothesis‚ essential to the most popular hypotheses about the origin of life on Earth? Becuase‚ RNA is able to store genetic info just like DNA‚ and is also able to catalyze
Premium DNA Gene
Standard Level Biology Design Lab: How do Smarties and M&Ms compare when examined in 5 areas: mass‚ shell solubility‚ volume‚ density‚ and nutrition facts? ‚ Erin MacNeil SL Biology Kathy DeGrasse Halifax Grammar School March 3rd‚ 2013 Section 1.1 Planning (a) * Introduction * Research Question * Hypothesis * Explanation of Hypothesis * Variables Introduction: In this lab‚ M&Ms and Smarties will be compared in five different ways: mass‚ shell solubility
Premium Arithmetic mean Standard deviation Microsoft Excel
provides energy for one’s body. (Metabolic is elevated) 3. In a person’s body that exercises‚ the lungs are important in sending more oxygen to the person’s cells‚ because the body consumes all available resources. The person’s body takes in oxygen quicker as they exercise‚ resulting in the person breathing harder/faster to keep up with the rate consumption. 4. During exercise‚ the oxygen enters into the bloodstream leading to the lungs and the cells take in the oxygen (capillary sacs). As the blood flows
Premium Muscle Oxygen Heart
Beet Cell Lab Purpose: The purpose of this Lab was to see how much pressure or stress the beet tissue would hold. Hypothesis: I hypothesize that the higher % of the solvent that the higher the colour intensity will be shown on the ph colour scale. The lower the solvent then the less colour shown. Materials: *Test Tubes (4) *Cork Borer *Beets *Water *1% Acetone *50% Acetone *1% Methanol *50% Methanol Procedure: *Cut 4 uniform cylinders of beet using a cork borer with a 5-mm
Premium Cell membrane Chemistry Protein
Microbiology Laboratory Report Identification of Unknown Bacteria 03/10/05- 04/01/05 Authors: Richard Hendricks‚ Jessica Prebish; NMU Abstract: Broth culture 16 was randomly selected by our group and subjected to qualitative tests for taxonomic identification. The culture did appear homogenous throughout the testing period and is currently retained by Northern Michigan University’s department of Microbiology. We suggest that culture 16 is an example of Escherichia coli. Background: Techniques
Premium Escherichia coli Staining Gram staining
When I was younger‚ I always wanted to be a lawyer for quite some time. When my Mother passed away ‚that was the moment I establish my true profession. I dreamed of majoring in science‚ particularly cell biology. I believe that god sent me this major from the great skies above. Being a cell biologist has stayed in my thoughts since I was in the 10th grade. My profession is the key to me being happy. I am preparing myself for this journey ahead of me. Studying hard and making sure I take action
Premium
H Week 8 Week 8 Lab: Molecular Biology Review Test Submission: Molecular Biology Lab Assessment Review Test Submission: Molecular Biology Lab Assessment Us er Cours e Introduction To Biology Tes t Molecular Biology Lab As s es s m ent Started 8/19/14 10:14 AM Subm itted 8/19/14 10:22 AM Status Com pleted Attem pt Score 27 out of 30 points Tim e Elaps ed 7 m inutes out of 2 hours . Ins tructions
Premium DNA
KOLEJ MATRIKULASI MELAKA 78300 MASJID TANAH‚ MELAKA Guidelines for Biology Experiments 1.0 Attendance 1.1 Attendance to practical sessions is COMPULSORY. 1.2 If you cannot come to the class due to ill health or emergency excuses‚ please inform the lecturer EARLIER‚ so that another practical session can be arranged for you ON THE SAME WEEK. 2.0 Lab coat 2.1 Wearing lab coat is COMPULSORY. 2.2 Put on the lab coat throughout the class. 3.0 Jotter 3.1 Jotters should contain the summary on the PROCEDURES
Premium Book