Lesson Objectives Describe the equipment needed for microscopy and explain how each piece is used. Calculate the linear magnification of drawings and the.

Slides:

Advertisements

Similar presentations

3.1 AS Unit F211: Cells, Exchange and Transport The cell is the basic unit of all living things. How to use a light microscope Why electron microscopes.

Advertisements

Topic 2.1 – Size of Cells & Magnification Text pg 7-21.

Microscopes. Purpose of scopes Magnification – make objects appear larger Resolution – keep the image clear.

Bellwork Why do scientists use Microscopes?

Sections 4.1, 4.2 CELLS AND MICROSCOPES.  Microscopes allow us to identify organisms that cause food to spoil and cause disease.  1665 Robert Hooke-

EXPLAIN WHY IT IS IMPORTANT TO USE LAB SAFETY?LAB SAFETY? GIVE ME 2 EXAMPLES Warm-Up.

Microscopes are used to increase the magnification and resolving power of the unaided eye MICROSCOPES.

AS Biology Core Principles The Electron Microscope.

Measuring cells.

1.1 Intro to the microscope and Calculating cell size.

Biology B2 Lesson 2: Bacteria.

Pages 52 to 54.  Compound Light  Visible light is used to illuminate the specimen  Glass lens bend the light to magnify the image  Magnifies up to.

Types of Microscopes Simple Microscope - contains only one lens. ex. magnifying glass Compound Light Microscope - a system of two lens that work together.

Cells and Microscopy.

Living Organisms Consist of Cells State the resolution and magnification that can be achieved by a light microscope Explain the difference between magnification.

Cytoplasmic Organelles Plastids Plant organelle that may take many forms. Examples include chloroplast, leukoplasts (which store food), & chromoplasts.

MICROSCOPES F STEREO F COMPOUND LIGHT F TRANSMISSION ELECTRON (TEM) F SCANNING ELECTRON (SEM)

Calculating Cell Size.

CELLS AND SIZES (2.1).

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 4 Tools and Techniques Chapter 1 Objectives List the function.

Unit 2: Day One Microscopes Caylor. Journal 1 On a clean sheet of paper, write down three things you already know about microscopes, making slides, the.

Chapter 3: Cell StructureSection 1: Looking at Cells 1 Cell Structure Chapter 3.

Experiment Questions Microscope. Why place a cover slip on a slide when viewing under a microscope? To prevent drying out or to protect lens or easier.

Microscopes The invention of the microscope in the 17 th century led to the discovery of the cell. Robert Hooke described cells using this light microscope.

AS Biology Core Principles The Electron Microscope Powerpoint hosted on Please visit for 100’s more free.

Introduction to the Microscope. Types of Microscopes The models found in most schools, use compound lenses to magnify objects. The lenses bend or refract.

Area of Focus: M a g n i f i c a t i o n Area of Focus: M a g n i f i c a t i o n Copyright © 2010 Ryan P. Murphy.

Tools in Science Miss Colabelli. Tools & Techniques Tools are objects to improve the performance of a task. Microscopes are tools that extend human vision.

Microscope Basics.

The area where protein synthesis takes place.

The Cell Theory The cell is the unit of structure in all living things. The cell is the unit of function in all living things. All cells come from preexisting.

Calculating Cell Size. Syllabus Explain the difference between magnification and resolution Calculate the linear magnification of an image.

Types of microscope Electron Microscope An electron microscope.

Tools of a Biologist MICROSCOPY Two factors play an important role in microscopy: 1. Magnification compares real size of a specimen with the one viewed.

Title: Magnification Lesson Objectives : 1. Can I explain the difference between magnification and resolution? Grade B 2. Can I differentiate between the.

Directed Reading: “Looking at Cells”

Measurement with the Microscope

Microscopes Microscopes. Importance One of the most widely used tools in Biology One of the most widely used tools in Biology Produces enlarged images.

Journal 1 On a clean sheet of paper, write down three things you already know about microscopes, making slides, the cell parts, and photosynthesis/respiration.

MICROSCOPE An instrument that magnifies, by many times, images of objects that are too small to see with the naked eye.

Microscopes  How can we observe cells?. What technology allows biologists to study microscopic life?  A. Compound Light Microscope 1.Has two lenses.

Links to GCSE: Structure of animal & plant cells Using a microscope

The Electron Microscope

Microscopy and Magnification

CONVERSION UNITS FOR MICROSCOPES NOW DO THE WORKSHEET ON SIZE AND SCALE.

Can you guess what these are pictures of?

Objectives: To state the resolution and magnification that can be achieved by a light microscope. Explain the difference between magnification and resolution.

Aim #11: How do scientists make measurements with a microscope?

Microscopy and Magnification

Quick Questions 1. Using your ruler, find something in this room that is: 5 cm 5 mm 0.2 m 30 mm 2. Order the following from smallest to greatest: 1 meter.

AS Biology Core Principles

Microscopes How can we observe cells?.

Ch. 2.2 Viewing Cells.

Scopes and Stuff II Scopes and Stuff Scopes and Stuff III 5 pt 5 pt

Microscopes Lesson 3 September 24th, 2010.

Microscopes Section 4.2.

Starter You are observing a specimen of squamous tissue under high power. Each individual cell has an average diameter of 60mm and the diameter of the.

The Microscope.

A C B D 1. Read the information about different sorts of microscope.

Microscopes How can we observe cells? HB p. 31.

Lesson Starter Draw an animal cell and label the organelles.

Which makes green tea faster: tea leaves or powder?

Experiment Questions Microscope.

Experiment Questions Microscope.

Using a Light Microscope

Notes: Microscopes Microscope

Presentation transcript:

Lesson Objectives Describe the equipment needed for microscopy and explain how each piece is used. Calculate the linear magnification of drawings and the actual size of specimens in images of known magnification.

Image from wikimedia commons: Magnification The image we see through the light microscope has been magnified. Objective lens x eyepiece lens

Modern Microscopy Image: d by USDA on Flickr (CC):

Modern Microscopy Image: d by USDA on Flickr (CC): As we develop more and more sophisticated and precise imaging tools, we can see more detail of the cells and molecules that make us. Scanning electron microscopes deliver high- resolution, 3D surface images of structures, whereas transmission electron microscopes give us a view inside cells and organelles.

Emiliana huxleyi Image from:

Transmission electron micrograph of HIV particles. HIV-1. Transmission electron micrograph, via wikimedia commons: 1_Transmission_electron_micrograph_AIDS02bbb_lores.jpghttp://commons.wikimedia.org/wiki/File%3AHIV- 1_Transmission_electron_micrograph_AIDS02bbb_lores.jpg 120nm

False-coloured scanning electron micrograph of HIV (green) budding on a lymphicoyte (blue) OR 1μm Scanning electron micrograph of HIV particles budding on a human lymphocyte.

Some units that I use & know ÷1,000 X 1,000 μm = micrometers We usually use this in discussion of cells. There are 1,000μm in one mm. write this correctly

Here is an image from a microscope. How do you know how big it really is? Any ideas what it is? Magnification x150

Lets practice a couple of questions (worksheet 1) Now lets play with the microscopes!

The next few slides show some worked examples to help you with future calculations

Extension / Plenary Try questions 1 – 3 (all parts) in the text book pages 6-7

Labeling the parts of the microscope activity: