Photosynthesis and Respiration By:Ramiro Garcia Through many years of school and history we have thought of Photosynthesis as two opposite things, but they actually can’t work without each other. So in this essay we will be comparing and contrasting photosynthesis and respiration. Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the Sun, into chemical energy that can be later released to fuel the organisms' activities. During photosynthesis there is a twostage process…
Words 439 - Pages 2
study the internal ultrastructure of cells. Isolating Organelles by Cell Fractionation We use cell fractionation to take cells apart and separate the organelles from each other. We use centrifuges and ultracentrifuges to fractionate cells. Comparing Prokaryotic and Eukaryotic Cells Organelles are found in the cytosol. Prokaryotic cells have a nucleoid and eukaryotic cells have a true nucleus. Eukaryotic cells are larger than prokaryotic cells. 6.3- The eukaryotic cell’s genetic instructions…
Words 815 - Pages 4
the cell theory and who is credited with each part? Cell Structure and Function 4. What things do all cells have in common? 5. What is the role of the cell membrane? How does its structure enable the cell to survive? 6. Complete the chart comparing and contrasting prokaryotic and eukaryotic cells: Prokaryotes Eukaryotes 7. Compare the cell to something in your life (house, work, body, etc). What items would the organelles represent in that situation? Write an analogy…
Words 741 - Pages 3
Name: __________________________ BIOLOGY EOC REVIEW PACKET Scientific Method 1. Define the following: a. Independent Variable: the variable that I change in the experiment b. Dependent Variable: the variable that I am measuring (it depends on the independent variable) c. Control Variable: variable that stay the same d. Controlled experiment: an experiment in which only one variable is changed at a time e. Hypothesis: an educated guess (If…, then…) 2. You have measured the…
Words 3035 - Pages 13
A Tour of the Cell Overview: The Fundamental Units of Life ¥ All organisms are made of cells ¥ The cell is the simplest collection of matter that can live ¥ Cell structure is correlated to cellular function ¥ All cells are related by their descent from earlier cells ¥ LMs can magnify effectively to about 1,000 times the size of the actual specimen ¥ Various techniques enhance contrast and enable cell components to be stained or labeled ¥…
Words 2003 - Pages 9
of living things ● Comparing and contrasting ● Analyzing relationship s ● Making predictions ● Understandi ng Cause and Effect Relationship s Standard 4: Key Idea 1: 1.2a j, 1.3a Reading : 2 5, 3* Writing: 4, 9*, 10 Prentice Hall, The Living Environme nt iLearn Discovery Videos Reviewing the Living Environme nt(Workbo ok) Plant and animal cells *(Observing and staining plant cells) Elodea and cork *(Identifyin g animal cells) *Comparing Animal and plant cells)…
Words 6742 - Pages 27
Section 2 • Matter is anything that occupies space and has mass. • There are three states of matter: gas, liquid, and solids Same # of protons as electrons • Atoms are composed of subatomic particles • A proton is positively charged • Electron is negatively charged • Neutron is electrically neutral • Electrons rotate and orbit the nucleus Elements • atoms differ in numbers of subatomic particles Neutrons: • no charge Isotopes • Forms of an element that differ in the number…
Words 6479 - Pages 26
carbon dioxide. Over millions of years the carbon dioxide accumulated in the environment and at some stage organisms capable of using CO2 in photosynthesis evolved and multiplied. They produced oxygen as a product of their metabolism, creating a chemical environment, which simple animals could exploit. These animals obtained energy from aerobic respiration. The evolution of organisms, as a consequence of chemicals in the environment, is not just ancient history by affects us now. Humans change the…
Words 2869 - Pages 12
than other groups • carry out respiration on mesosome’s (special membrane systems), not mitochondria • Taxonomic Hierarchy Domain Kingdom Phylum Class Order Family Genus Species smaller cells than eukaryotes • parasitic (some cause disease) Protoctista E.g. Algae • eukaryotes • mostly single-celled • autotrophic/heterotrophic nutrition • do not belong to any other kingdoms Fungi E.g. Moulds, yeast, mushrooms • multi-cellular eukaryotes • heterotrophic (plants…
Words 7251 - Pages 30
Chapter 6 A Tour of the Cell Cellular level of organization • Cell theory: • A unifying concept in biology • Originated from the work of biologists Schleiden and Schwann in 1838-9 • States that: – All organisms are composed of cells – All cells come only from preexisting cells – Smallest unit of life • German botanist Matthais Schleiden in 1838 • German zoologist Theodor Schwann in 1839 • German physician Rudolph Virchow in 1850’s Organisms and Cells 3 Cell Size • Most much smaller than one…
Words 2736 - Pages 11