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
*This is a lab report from a previous 181 lab written by a student. It has been modified and cut short a little to convey some important pointers to writing lab reports. The left columns indicate the pointers and some instructions. Please read those carefully. The text material has been provided so that you may have an example of a lab that you have already done. *You should not write the report in table format (this is only for illustration). Also‚ I expect graphs‚ tables‚ and math equations in
Premium Carbon dioxide Cellular respiration Oxygen
Done by: Instructor: Introduction Respiration is the number of processes which leads to the oxidation of organic compounds to produce the energy. There are several types of respiration‚ and one of them is aerobic. During the aerobic respiration‚ human uses the oxygen from atmosphere and produce carbon dioxide. A cardiorespiratory system which includes lungs‚ heart‚ blood vessels and others is responsible for all the processes linked to the respiration and controlled by the nervous system. During
Premium Oxygen Carbon dioxide Cellular respiration
The Onion Cell Lab Background: Onion tissue provides excellent cells to study under the microscope. The main cell structures are easy to see when viewed with the microscope at medium power. For example‚ you will observe a large circular nucleus in each cell‚ which contains the genetic material for the cell. In each nucleus‚ are round bodies called nucleoli. The nucleolus is an organelle‚ which synthesizes small bodies called ribosomes. Ribosomes are so small you cannot see them with the light microscope
Premium Cell nucleus Bacteria Cell
Lab #1: Cell Membrane Prepared for Gary V. Lawrence Biology 0983 By Zane Jeffels Partners: Lily Juno‚ Huynh‚ and Lin Yan Sun Preformed: October 11th‚ 2010 Due: October 25th‚ 2010 King Edward Campus- Rm. 3275 Vancouver Community College Abstract The purpose of this lab was to determine if hemolysis would occur‚ and how long it would take to occur to red blood cells when blood suspension is introduced to solutions prepared at different temperatures
Premium Red blood cell Cell membrane Protein
Cell Biology Lab - Homework 1 Due to the week of Oct. 6-10th This is NOT a lab group project. Do the work individually. You may use any source other than your fellow students. Show your work‚ use your own words and cite all references. 1. (20 points) The HeLa S3 cancer cell line is considered to be “continuous” due to acquired mutations that enable the cells to evade senescence. This property is one of several hallmark characteristics of cancer cell lines. Describe three hallmark characteristics
Premium Cell culture
LAB REPORT 1 - LAB 7 CELL MEMBRANE FUNCTION Marisela Camacho Legarreta June 30‚ 2013 ACTIVITY 1 INTRODUCTION Be aware that all molecules have kinetic energy‚ which means that is an active energy that is always in motion. Molecules move in all different ways and this create an evenly distributed movement which is best known as diffusion. Diffusion is the movement of molecules from a region of their higher concentration to a lower concentration. METHODS Check the reaction of different
Premium Osmosis Diffusion Molecular diffusion
STRUCTURE AND FUNCTION OF LIVING CELLS Name Answer the following questions as you work your way through the lab material typing in your answers. Then submit your completed lab report through the “Assignment” feature. This lab report is worth 50 points towards your final lab grade. Also‚ per the Honor Code‚ this work must be your own. CELLS Using your Biology Textbook answer the following questions. 1. What types of organisms are Prokaryotes? The Prokaryotes are organisms that are
Premium Brain Nervous system Neuron
Cell Size: Is Bigger Better? Problem: Why are cells small? Objective: To see the relationship between cell size and diffusion of materials. Hypothesis: If we cut three different sizes of cells‚ then the smallest one will survive the longest due to its sufficient permeable membrane. Cube | Total Volume (cm^3) | Surface Area (cm^2) | Index SA/VOL | 3 | 27 | 54 | .5 | 2 | 8 | 24 | .33 | 1 | 1 | 6 | .16 | Index of Cubes Cube Index SA/VOL Surface Area to Volume Cube | Total
Premium Area Organelle DNA
This lab was split up into two different experiments‚ using different variables in each. During the first section of the lab‚ we investigated the what the effect of light is on both photosynthesis and cellular respiration. Our hypothesis about this effect was that the cuvette representing ‘no light’‚ being covered in foil‚ would result in a yellow CO2 indicator fluid‚ meaning that there was a decrease in pH and a high level of CO2 was present. Additionally‚ we hypothesized that the cuvette that was
Premium Photosynthesis Carbon dioxide Plant