Cell Theory. A long time ago… DNA was a relatively “new” discovery because it’s shape has only been around around 60 years But, what in the world did.

Slides:

Advertisements

Similar presentations

Discovery of Cells.

Advertisements

Cell Theory and Prokaryote vs. Eukaryote

Cell Study Guide Explain the importance of these scientists contributions. Hooke – Leeuwenhook- Schwann- Schleiden Their discoveries lead to the.

Cell Theory and Prokaryote vs. Eukaryote

Ch. 4 Structure & Function of the Cell

Most cells are too small to see With the naked eye. Scientists became aware of Cells only after microscopes Were invented, in the 1600’s. When the.

Cellular Structure and Function Review

Cells. Discovery of the Cell We could not have discovered the cell without the invention of the microscope in the 17th century.

Cells. Robert Hooke In his book, entitled Micrographia, Hooke was the first to use the term cell From the Latin “cella” meaning “small chamber”

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

Cells: The Basis of Life Mevan Siriwardane Mrs. Rolle’s Biology - Barringer High School October 25, 2007 Mevan Siriwardane Mrs. Rolle’s Biology - Barringer.

Building blocks of life!

Cell Theory and Prokaryote vs. Eukaryote. What is a Cell?  Cell – Basic unit of living things. Organisms are either:  Unicellular – made of one cell.

7-1 Cell Theory Prokaryotes vs. Eukaryotes

It all begins with CORK in  10 years later, Anton van Leeuwenhoek viewed pond water under a microscope and discovered many tiny, living creatures.

Cell Structure and Function

L3 Biology Chapter 1 Section 2

Chapter 3- Cell Structure

Cytology Cell Structure & Function – the study of Objective: C1 - Summarize the principles of the cell theory, compare & contrast prokaryotic & eukaryotic.

Miller and Levine biology 7.1 – 7.2

JEOPARDY FINAL JEOPARDY

HISTORY OF CELL DISCOVERY

Ch. 7 cell structure and function Life is cellular

A Tour of the Cell.

Cell Structure & Function

Cellular Structure and Function Review. This organelle contains DNA and controls the cell This organelle contains DNA and controls the cell Nucleus.

Cells DI Biology Mrs. Naples. Discovery of the Cell Discovery of the cell – Robert Hooke 1665 – First to use a compound microscope to look at “cells”

An introduction to the cell Section 7.1

Cell Theory and Structure. Discovery of the Cell Scientists did not start using simple compound microscopes until the mid 1600’s. Robert Hooke used an.

Chapter 7 CELLS. History of Cells It all begins with CORK in 1665.

INTRODUCTION TO CELLS. History of the Cell Robert Hooke, 1665 Anton von Leeuwenhoek, 1674 Matthias Schleiden, 1838 Theodor Schwann, 1839 Rudolph Virchow,

Cell types Prokaryotic vs. Eukaryotic Cells. Nucleus Nucleus contains DNA Membrane-bound organelles including Nucleolus Nuclear membrane/Envelope Free.

P Organelle Identification A Organelle Identification Cytoplasm Components Nuclear Components Cell Classification Cell History FINAL.

Cell Overview Cells are the basic unit of structure in living things Cells are highly specialized, and can change from organism to organism. Cells are.

Cells and Cell Organelles

A Spotlight on Research

Chapter 7: Cell Structure and Function. 7-1: Life is Cellular The Discovery of the Cell –Robert Hooke coins the term “cell” to describe sections of cork.

Cells EQ: What are the structures and functions of the different types of cells and cell parts?

The Cell Chapter 7. Introduction n Robert Hooke, 1665 observed cork with a microscope and saw tiny boxes - called them cells n Leeuwenhoek observed pond.

Chapter 7: The Microscope and Cell Theory

Cellular Structure and Function 7.1 Cell Discovery and Theory 7.2 The Plasma Membrane.

A Tour of the Cell.

Cell Structure & Function

History of the Cell Chapter 4.

Introduction to Cellular Biology. Essential Questions What is the cell theory? What are the characteristics of prokaryotes and eukaryotes?

The Cell and Its Organelles. Discovery of Cells Robert Hooke: (1665) Publishes book Micrographia, contains drawings of sections of cork as seen through.

Chapter 7 – Cell Structure and Function $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Topic 1Topic 2Topic 3Topic 4 Topic 5 FINAL ROUND.

Cell Structure and Function

Chapter 2 Cells bill nye cell video 23 min.

Cells (Chapter 7.1 & 7.2) 1 Introduction to Cells Cells are the basic units of organisms Cells can only be observed under microscope Basic types of cells:

Introduction to Cells.

Chapter 7: Cell Structure & Function 7.1 & 7.2. Discovering the Cell For a long time, we didn’t know cells existed. They were too small to see with the.

The Diversity of Cells HO#____C Name:_____________________.

CELLS. Videos: 00

HISTORY OF CELL DISCOVERY Merchants Used hand lenses to assess cloth quality Thin slices of cork Cells Invented 1 st crude microscope 1)High quality lenses.

A Tour of the Cell.

CELLS!. History of Cells *Robert Hooke used the first microscope to look at a thin slice of cork in He saw “a lot of little boxes,” which reminded.

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

Prokaryote – Bacterial Cell. Prokaryote s Unicellular organism (ONE TYPE OF CELL) Cell membrane Ribosomes Cillia/flagellum NO NUCLEUS.

Section 7.1. Anton van Leeuwenhoek created one of the first microscopes Allowed him to look at water and bacteria in his mouth, which he called “animalcules”

Introduction to Cells. What is a cell? …membrane bound structure, it is the smallest unit of life.

Unit 3: Cell Structure & Function Mrs. Howland Biology Level 10 Rev. Oct 2015.

End Show Slide 1 of 31 Copyright Pearson Prentice Hall 7-1 Life Is Cellular.

Cell Theory and Prokaryote vs. Eukaryote

Cell Structure and Function 7.1

Presentation transcript:

Cell Theory

A long time ago… DNA was a relatively “new” discovery because it’s shape has only been around around 60 years But, what in the world did biologists study before that?? Cells – the smallest unit of life found in biology

Just how long ago? In 1665 (351 years ago!) … Robert Hooke found cells Robert Hooke – using a compound light microscope (like the ones we used in class) looked at cork and saw cells. He published drawings of cells (cork and fleas) in his book, Micrographia

Then, a few years later… In 1683 (332 years ago) Anton van Leeuwenhoek discovered one celled animal like organisms He called these protozoans and we still do today

How did they see this? Microscopes! Microscopes see things not visible to the naked eye. They see things we can’t see without their help. There are 2 main types: 1. Compound Light Microscope 2. Electron Microscope

The Cell Theory Cell Theory – one of the basics of biology which states the following things: A. All living things are made of cells B. Cells provide the basic structure and function of all living things C. Cells come from previously existing cells

Two different types of cells are in biology Prokaryotic – Basic cells without a nucleus or membrane-bound organelles They do have DNA, membranes, flagella and ribosomes, but nothing else

Two different types of cells in biology Eukaryotic Cells – true cells which have a nucleus and other membrane bound organelles These have DNA, a nucleus, ribosomes, mitochondria, ER, and so on, and on….

What are organelles? Organelles – the name for the smaller parts of a cell It includes nucleus, mitochondria, ribosomes, nucleolus, smooth Endoplasmic reticulum, rough endoplasmic reticulum, Golgi bodies, and so on

Cell Membrane It also includes a cell membrane Cell Membrane – the outside part of the cell which contains the organelles. It is a protective part of the cell to let things in and out. We’ll study this more in a couple of weeks!

How did this happen? The first cells were probably prokaryotic cells Endosymbiotic Theory – states that a prokaryotic cell lived inside another one in a symbiotic relationship (remember they need one another) This gives rise to a eukaryotic cell over time