0.5 3) When studying cells structure using a microscope the smallest unit of measurement commonly used to describe findings is the nanometre. Explain why. Magnification and Resolution 1) Define the following terms: Magnification: Resolution: 2) Visible light has a wavelength of 400-700 nm. Calculate the best resolution achievable with a light microscope? Show your working out: 3) If the electron gun produces an electron beam with 2 nm wavelength‚ what is the best resolution
Free Cell Eukaryote Organelle
Chapter 1/2 Bio Study Guide Section 1.1-Scientific Method Science- An organized way of gathering and analyzing evidence about the natural world Scientific Method 1. Collecting observations 2. Asking questions 3. Forming a hypothesis 4. Experiment 5. Analyze results and draw conclusions 6. Revise hypothesis Control Group- a group in the experiment that receives no experimental treatment Independent Variable- Variable that you change in the experiment X-axis Dependent
Premium Cell Bacteria Photosynthesis
SCANNING HALL PROBE MICROSCOPY OF MAGNETIC VORTICES IN VERY UNDERDOPED YTTRIUM-BARIUM-COPPER-OXIDE a dissertation submitted to the department of physics and the committee on graduate studies of stanford university in partial fulfillment of the requirements for the degree of doctor of philosophy Janice Wynn Guikema March 2004 c Copyright by Janice Wynn Guikema 2004 All Rights Reserved ii iv Abstract Since their discovery by Bednorz and M¨ller (1986)‚ high-temperature cuprate
Premium Superconductivity
This technique was called staining‚ and was when one would stain nervous tissue before examining to under a microscope. However‚ several years later in 1873‚ Camillo Golgi came out with a new‚ improved staining method. The staining technique‚ allows the frequently transparent microbial cytoplasm’s to be seen with the light of the microscope by staining them. Through this new method there were several new discoveries‚ surrounding the nervous system. Golgi however‚ even with
Premium Brain Psychology Nervous system
Your assignment is worth 50 points. Question 1 of 25 What property of a compound light microscope enables a person to change objectives without major focusing adjustments? resolving power magnification parfocal focusing resolution Question 2 of 25 How does closing the iris diaphragm affect image brightness and contrast? decreases both increases both decreases brightness and increases contrast increases brightness and decreases contrast decreases brightness but
Premium Optics Lens Telescope
Biology: Concepts and Connections‚ 6e (Campbell) Test Bank (1) Part (1) Chapter 1 Introduction: The Scientific Study of Life 1) Which of the following statements about the leopard is false? A) Leopards are the largest cat in the genus Panthera. B) Leopards‚ like lions‚ can roar. C) Leopards prefer to eat their kill in trees. D) Leopards are well-adapted for nocturnal hunting. E) Leopards are normally solitary animals. Answer: A Topic: Opening Essay Skill: Factual
Premium Cell Bacteria Protein
Chapter Four DEFINITIONS nucleic acid – polymers specialized for the storage‚ transmission between generations‚ and use of genetic information. There are two types‚ DNA and RNA nucleotides – monomers that compose nucleic acid‚ consist of a pentose sugar‚ a phosphate group‚ and a nitrogen containing base. DNA - – a macromolecule that encodes hereditary information and passes if from generation to generation. RNA and the bonds that stabilize them Purine - one of two chemical forms
Free DNA Cell Protein
Thermal Expansion Thermal expansion is the tendency of matter to change in volume in response to a change in temperature‚ through heat transfer. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically‚ it measures the fractional change in size per degree change in temperature at a constant pressure. Several types of coefficients have been developed: volumetric‚ area‚ and linear. This is used depending on the particular application
Premium Thermodynamics Temperature Volume
MOLECULAR ELECTRONICS INTRODUCTION Molecular electronics (sometimes called moletronics) is a branch of applied physics which aims at using molecules as passive (e.g. resistive wires) or active (e.g. transistors) electronic components. The concept of molecular electronics has aroused much excitement both in science fiction and among scientists due to the prospect of size reduction in electronics offered by such minute components. It is an enticing alternative to extend Moore’s Law beyond the
Premium Electron Electronics Transistor
Review Guide Microscopes and Cells Test Tuesday‚ October 23 1. Be familiar with how to use light microscopes‚ and label the parts. 2. Be familiar with electron microscopes – what are the two kinds and how do they differ? 3. State the three basic tenets of cell theory. 4. Define/describe eukaryotic and prokaryotic cells‚ and know examples of each. 5. Be able to label diagrams of plant and/or animal cells. 6. Be very familiar with the structures and functions of all
Free Cell Eukaryote