Upload File

chapter 7-1 life is cellular. early microscopes robert hooke -1665 looked at a thin slice of cork,...

  • Home
  • Documents
  • Chapter 7-1 Life is Cellular. Early Microscopes Robert Hooke -1665 looked at a thin slice of cork, from the cork oak tree Coined the term “cells”; looked

Click here to load reader

prev
next
out of 20
Download Chapter 7-1 Life is Cellular. Early Microscopes Robert Hooke -1665 looked at a thin slice of cork, from the cork oak tree Coined the term “cells”; looked

Upload: april-patrick

Post on 17-Jan-2016

222 views

Category:

Documents


0 download

Report

Tags:

TRANSCRIPT

7-1 Life Is Cellular

Chapter 7-1 Life is Cellular

Early MicroscopesRobert Hooke -1665looked at a thin slice of cork, from the cork oak treeCoined the term cells; looked like the rooms of a monastery (many empty boxes)

Anton van Leeuwenhoeklooked at pond waterhe was amazed by tiny living organisms

Developing the Cell TheoryMatthias Schleiden- 1838 Concluded that plants were made of cells

Theodor SchwannConcluded that animals were made of cells - 1839

Rudolf Virchow - 1858Concluded that cells must come from dividing cells

Cell Theory:1) All living things are composed of cells

2) Cells are the basic units of structure and function in living things

3) New cells are produced from existing cells. Name of Instrument: Compound Light Microscopes Magnify 1500x(what well use!)

Use a series of lenses to magnify objects in steps.

Today researchers tag molecules with fluorescence and follow their path through the cell.

Exploring the cell Microscopes (what we skipped in Chapter 1)

ProkaryotesEukaryotesFind us!!Electron Microscopes 150,000x magnification

Transmission Electron Microscopes (TEM) explore cell structures and large proteins

Scanning Electron Microscopes (SEM) scan of surface of specimen; 3D images

Prokaryotes vs. EukaryotesAll cells:Have a plasma membraneContain DNA

Two broad categories:Eukaryotes - contain nucleus; eu means true

Prokaryotes- no nucleus; pro means before

Eukaryotes

HAVE NUCLEUSLarger, more complexPlants, animals, fungi, and protists

Prokaryotes

NO NUCLEUSSmaller, simplerBacteria

ProkaryotesCommon to BothEukaryotespro=__________

generally smallerless complicatedno

Ex: Bacteriacontain __________

Eu= ___________

Generally largerContain membrane bound organelles (little organs)

Ex: beforetrueMembrane bound organellesPlants, animals, fungi, and protistsDNACell membraneClick:Eukaryotic Cell vs. Prokaryotic cell

NucleusNo nucleusMembrane bound organellesEndosymbiotic Theory


7th Science … · Unit 1 Lesson 1 The Characteristics of Cells •Robert Hooke (1665) - first to describe cells. He looked at the bark of a cork tree under a microscope (that he

THE DISCOVERY OF CELLS Hooke Robert Hooke discovered cells in slices of cork. Leeuwenhoek Anton van Leeuwenhoek was the first to observe living

Cell Structure & Function. Robert Hooke (1600s) named the cell after viewing cork under m’scope

The Discovery of Cells In 1665 Robert Hooke looked at cork under the microscope and described what he saw as “tiny rooms” or “cells”

Chapter 7 Cell Structure & Function. 7.1 Life is Cellular Discovery of the Cell –Use of microscopes to discover cells – 1600s –Hooke looked at cork (plant

Cells The Units of Life. Mid 1600s - Robert Hooke observed and described cells in cork Mid 1600s - Robert Hooke observed and described cells in cork Late

Cells. The Discovery of Cells Robert Hooke, and English scientist, discovered and named cells in 1665. He looked at thin slices of cork through a light

Cell Discovery and Theory History of the Cell Theory In 1665, Robert Hooke invented the first simple microscope. He looked at a cork

How were they discovered? ~ 1665 - Robert Hooke looked at a slice of cork

Cell Structure and Function Chapter 7. Cell History Robert Hooke (1635- 1703)Robert Hooke (1635- 1703) Viewed slices of cork under a crude compound microscopeViewed

Ch4 p 69. History Robert Hooke – 1665 – Cork cells First to use the word ‘cell’ to describe the boxes he saw in cork, a plant

DELUCA BIOLOGYdelucabiology.weebly.com/uploads/1/0/5/2/10521721/cell…  · Web view1. The word "_____" was first used in late 1665 by Robert Hooke. He looked at: 2. Cork seemed

1. 2 First to View Cells In 1665, Robert Hooke used a microscope to examine a thin slice of cork (dead plant cell walls) What he saw looked like small

CELLS – THEORY Unit One Notes. THE FIRST OBSERVED CELLS Robert Hooke (1665) – a British scientist who used a homemade microscope Hooke looked at a

1665 Robert Hooke looked at a slice of cork under a compound microscope and discovered the cork was made up of small “boxes” that he named cells Cells

Ch. 7 Notes. Robert Hooke (1665). Observed “cork.” Said “cork was made of little compartments that looked like monk’s “cells.” History of Cells

Robert Hooke Microscopes opened a whole new world Looked at cork under a microscope Gave cells their name These remind me of the rooms monks sleep in

Discovery of Cells. First to View Cells In 1665, Robert Hooke used a microscope to examine a thin slice of cork What he saw looked like small boxes so

Robert Hooke 1665 coined the word `cell’ for the box-like structures of cork

Discovery of Cells. People 1660- Robert Hooke invented the microscope; 1665-he looked at a piece of cork and noticed it was made up of little boxes

Cell Structure Chapter 3. 3.1 Looking at Cells 1600’s the microscope was invented Robert Hooke 1665 looked at cork and saw little boxes he called

Cells. Cell Scientists Robert Hooke looked at cork under a microscope 1 st to use term “cell”

CH. 3 ~ CELLS. Robert Hooke 1665 Looked at thin slices of cork under a microscope Did not know at the time about their structure and function. What IS

The Plant Cell and the Cell Cycle Chapter 3. Cell Basic unit of plant structure and function Robert Hooke –Looked at cork tissue under microscope –“little

Chapter 5 Cell Structure and Function. I. The history of cell study A. Robert Hooke—1665—coined the word cell, looked at cork cells B. Robert Brown—1831—

7.1 The Discovery of Cells€¦ · The scientist Robert Hooke looked at thin slices of cork under a compound microscope. Thinking the small shapes he saw looked like small rooms,

Procedure - Merrillville High School · the bark of the cork oak tree, it is essentially dead plant tissue. Using his microscope, Hooke looked at very thin slices of cork. He noticed

Cells August 28 th, 2007. Cell History Robert Hooke (1635- 1703) Robert Hooke (1635- 1703) Viewed slices of cork under a crude compound microscope Viewed

Cells. Discovery of Cells 1665: Robert Hooke looking at cork under crude microscope

Cell Structure & Function. Robert Hooke-1665 Coined the word “cell” Looked at cork cells Robert Brown -1831 Discovered the "nucleus" Theodor

Chapter 7 Cells and Transport. Hooke 1665 Observed pieces of cork under a simple microscope. Describe the structure of cork

ROBERT HOOKE 1 st to see cells. Cork Cells Cork cells. Are they living? Which cell part are we seeing here?

Lindsay. Cells are best described and studied by Robert Hooke. When he studied the cells he used a early light microscope. Hooke looked at the dried

Histology “study of tissues”. History of the Microscope Robert Hooke- 1665 Created the first microscope Looked at cork tissue Coined the term cells

Chp. 7- Cell Theory & Parts. The Discovery of Cells Robert Hooke (1665) –Looked at cork under a microscope. –Saw many little boxes. –Called them cells