Microscope History and Development (2) Field of view and Magnification Check and go over yesterday’s HW p 140-1.

Slides:



Advertisements
Similar presentations
Microscopes. Simple Light Microscopes Contains one lens Uses light Used by Anton van Leeuwenhoek in the 1600s.
Advertisements

Microscope Basics (1) Parts and focusing. Label the Compound Light Microscope Ocular lens Body Tube Coarse Adjustment Knob Fine adjustment Knob Revolving.
Microscope Basics pages
1 Review What is a cell Explain What three statements make up the cell theory Infer How did the invention of the microscope help the development of the.
Microscopes Section 3-1.
Microscopes Section 2.2. History and use of the microscope
Microscopes are used to increase the magnification and resolving power of the unaided eye MICROSCOPES.
Chapter 7 Section 1 Cells.
Microscope Basics (1) Parts and focusing. Label the Compound Light Microscope (Handout) Ocular lens Body Tube Coarse Adjustment Knob Fine adjustment Knob.
Microscopes.
Chapter7 Microscopes and cells. Where does cork come from? The bark of an oak tree that grows in Spain and Portugal The bark is dead All that is left.
Microscopes.
Microscope History and Development
Cells and Heredity Chapter 1 Lesson 1
A Guide to Microscopy. The Light Microscope Purpose: History Flea glasses Anton van Leeuwenhoek Robert Hooke.
TAKE ONE OF EACH! TAKE ONE OF EACH! Microscopes.
Cell Structure & Function
Chapter 3 Microscopes.
Parts of a Microscope Microscope Basics. Label the Compound Light Microscope (Handout) Ocular lens Body Tube Coarse Adjustment Knob Fine adjustment Knob.
Microscopes History, Parts, and Usage. History of Microscopes Microscopes were invented in late 1500s –Compound microscope (2 or more lenses) –Used natural.
Cell Discovery and Theory History of the Cell Theory  In 1665, Robert Hooke invented the first simple microscope.  He looked at a cork.
Microscope History and Development
Cell Structure and Function Cellular Basis of Life, Homeostasis Chapter 7-1.
Discovery and study of cells Unit 2 part1 Packet 4 Unit 2 part1 Packet 4.
Discovering Cells Pages Cells are the basic unit of structure and function in all living things. All living things are made of cells All life processes.
Section 3-1 Looking at Cells.
“Cell Theory”. Leeuwenhoek made a simple microscope (mid 1600’s) magnified 270X Early microscope lenses made images larger but the image was not clear.
Microscopes. A microscope is… an instrument that produce images or pictures of small objects.
The wacky history of the cell theory. Microscopy Janssen’s microscope (1590’s) capable of magnifying images approximately three times when fully closed.
Cell Theory and the Microscope SBI3C0 Ms. Manning.
THE HISTORY OF THE MICROSCOPE
Microscope Basics Parts and focusing.
Exploring life.  Allowed people to see details of an object that they could not see before  Robert Hooke- in the 1600’s used a microscope to look at.
Slide 1 of 31 Copyright Pearson Prentice Hall Biology.
I. Why Study Cells? A. Body is made up of cells: 1. RBC 2. Nerve Cells 3. Skin Cells 4. Muscle Cells.
Cells Cells are the basic units of structure and function in living things. Most cells are too small to be seen with the naked eye. The invention of the.
Microscopes. History Invented in the late 1500s – Compound microscope (2+ lenses) – Used natural light, magnified 20-30x.
Microscopes  How can we observe cells?. What technology allows biologists to study microscopic life?  A. Compound Light Microscope 1.Has two lenses.
Microscopes History, Parts, and Usage. History of the Microscope Anton van Leeuwenhoek (mid 1600s) –“father of microscopy” –looked at water through a.
Cells & Heredity: Section 1.1 – Discovering Cells 6 th Science.
CELLS Structure and Function Ch. 1. What are they? Building blocks of life Very tiny –Cannot be seen without a microscope usually.
Chapter 2.3 Discovering Cells POINT > Identify how cells were discovered POINT > Describe how different microscopes work POINT > Describe the development.
Microscopy Microscopes are tools that extend human vision by enlarging images of objects. Biologists use microscopes to study cells, cell parts, diseases.
CHAPTER 7 CELL STRUCTURE & FUNCTION PGS CELL STRUCTURE & FUNCTION.
Do Now Turn to your notes packet. Continue working on the page of questions we left off on (#14, 15, and 16). Go to next page and do #17.
Two major types of Microscopes Light microscopes Electron microscopes.
THE MICROSCOPE. HANS & ZACHARIAS JANSSEN Made the first compound microscope in 1595.
Microscopes Section 3-1. History of the Microscope 1590 –first compound microscope.
Exploring Life Chapter 9 Lesson 3.
Microscopes & Cell theory
Microscopes.
The Microscope.
The wacky history of the cell theory
Introduction to the Cell
Chapter 2.3 Discovering Cells.
History, Parts, and Usage
Do Now Describe the differences/similarities you see between these two cells (3 of each).
Cell Theory and Microscopes
The Microscope And the cell theory.
Microscopes.
Do Now How did the invention of the microscope help scientists make advances in Biology?
Microscopes.
Chapter 7 – Cell Structure and Function
THE MICROSCOPE.
Microscopes.
Exploring Life 1.3.
Microscopes.
Cells.
Microscope History and Development
The Microscope Appendix C pp.4-5
Presentation transcript:

Microscope History and Development (2) Field of view and Magnification Check and go over yesterday’s HW p 140-1

Early Microscopes - Anton Van Leeuwenhoek The father of microscopy, Anton Van Leeuwenhoek of Holland ( ). The father of microscopy, Anton Van Leeuwenhoek of Holland ( ). Anton Van Leeuwenhoek was the first to see and describe bacteria (1674), yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries. Anton Van Leeuwenhoek was the first to see and describe bacteria (1674), yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries.

Robert Hooke In 1665, the English physicist Robert Hooke looked at a sliver of cork through a microscope lens and noticed some "pores" or "cells" in it. In 1665, the English physicist Robert Hooke looked at a sliver of cork through a microscope lens and noticed some "pores" or "cells" in it. Hooke was the first person to use the word "cell" to identify microscopic structures when he was describing cork. Hooke was the first person to use the word "cell" to identify microscopic structures when he was describing cork.

Antique microscopesAntique microscopes (link) Antique microscopes

Technological Advances in Microscopes

Compound Light Microscopes Uses light Uses light Has two lenses Has two lenses Magnification limited to 2000x (400x at LHHS) Magnification limited to 2000x (400x at LHHS)

Transmission Electron Microscope (TEM) Uses beams of electrons Uses beams of electrons Magnification of x Magnification of x Has two limitations: Has two limitations: Good only for thin specimens Good only for thin specimens Only dead cells can be observed Only dead cells can be observed

Scanning Electron Microscope (SEM) Electrons are reflected from the surface of the specimen Electrons are reflected from the surface of the specimen Produces a 3-d image Produces a 3-d image Good for the thicker specimens Good for the thicker specimens Lacks the magnification and resolution of the transmission electron microscope Lacks the magnification and resolution of the transmission electron microscope

Magnification Magnification = Objective lens X Ocular lens (4x, 10x, 40x)(10x)

Calculating the size of a specimen binder binder

Calculating the size of a specimen Example under med. objective Object size = Size of field of view Number of objects across field of view Object size =1.72 mm 14 Object size =0.1 mm

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.