Introduction to the Cell and Cell Theory

Slides:



Advertisements
Similar presentations
History of Cell Discovery Chapter 4. Microscope view of cells ► Robert Hooke – first to see cells!  designed microscope that he was able to view cork.
Advertisements

4-1 Introduction to the Cell
Robert Hooke - uses the word “cells” to describe cork. Anton van Leeuwenhoek - observes tiny microorganisms with his microscope.
The Cell =player_detailpage&v=gFuEo2ccTPA.
Chapter 4 Cell Structure and Function. Review: Early scientists that led to the cell theory –Anton van Leeuwenhoek (1600s) – given credit for developing.
History of the Cell Chapter 4.
Cell Theory Timeline. What is a cell? The basic unit of structure and function of life.
7-1: Life is Cellular Biology 1. If you look closely at different things, you will notice that every living organism is made of cells Introduction.
Cell Theory Introduction.
The Cell Theory SOL BIO 2a. The Cell Theory  The development and refinement of magnifying lenses and light microscopes made the observation and description.
Life is Cellular First to View Cells In 1665, Robert Hooke used a microscope to examine a thin slice of cork (dead plant cells)
October 16, 2015 Page 59 Objective: I can identify the parts of a compound light microscope. Title Microscopes.
Cell Theory and the Scientists Who Helped Shape It
Cell Theory Timeline of Scientists & Organization
Introduction to the Cell Theory
Cell Theory.
Review Session 1 “The Characteristics of Cells”
Basic Structure of a Cell
4-1 Introduction to the Cell
Chapter 7 Section 1 Cells.
7.1 Cell Discovery and Theory
BASIC STRUCTURE OF A CELL MS. GAYNOR AP BIOLOGY/ CHAPTER 6 (PART 1)
7.1 Introduction to Cells I. The Discovery of Cells
Cell Theory and cell scientists.
The Cell Theory A Timeline
4-1 Introduction to the Cell
Discovery of the Cell.
First to View Cells In 1665, Robert Hooke used a microscope to examine a thin slice of cork (dead plant cells) What he saw looked like small boxes What.
Basic Structure of a Cell
Basic Structure of a Cell
History of The Cell.
Life is Cellular Chapter 7 Sec. 1.
The Discovery of the Cell
Cell History & Structure
Cell Structure and Function
History of Cells & the Cell Theory
4-1 Introduction to the Cell
Chapter 7 Introduction to the Cell Section 7:1
History of the Cell Theory
Cell Structure and Function
Introduction to Cells.
Cell tissue organ system
The Cell Theory Ch. 2.3.
Chapter 3: Cell Structure and Function
Chapter 7 Intro to the Cell Section 7:1
Cell Biology.
The Cell Theory.
Cell Theory.
CELL THEORY NOTES.
Cell theory, prokaryotes, eukaryotes, scientists
Cell Theory.
Cell Theory & Intro to Cells
Objectives Describe cell theory:
Cell Discovery and Theory
The Characteristics of CELLS
Basic Structure of a Cell
Chapter 7; Section 1 Introduction to Cells
History of Cell Discovery
Cells. Cells Prokaryotes aka Bacteria Contains: DNA Cell membrane Cell wall Cytoplasm Ribosomes (have no membrane)
History of the Cell Theory
The Characteristics of CELLS
Cell Discovery and Theory
What are the developments that led to the cell theory?
Cell Theory Timeline of Scientists & Organization
The basic structure that makes up all living organisms
The Cell Theory and Cell Structures
7-1 Life is Cellular.
4-1 Introduction to the Cell
4-1 Introduction to the Cell
Discovery of the Cell and Cell Theory
Presentation transcript:

Introduction to the Cell and Cell Theory

Important events in the discovery of the cell and the development of the cell theory…..

1665 – Robert Hooke Named them "cells”. Observed cells in cork. Cork Cells

1673- Anton van Leeuwenhoek Created a powerful microscope

1827-33 - Robert Brown -noticed that pollen grains in water jiggled around -discovered the nucleus Nucleus Human Cheek Cell

A botanist who concluded that all plants are made of cells. 1838 - Matthias Schleiden A botanist who concluded that all plants are made of cells. Typical Plant Cell

1839 - Theodor Schwann A zoologist who concluded that all animals are made of cells. Nerve Cells

1855 - Rudolph Virchow A physician who did research on cancer cells and concluded “Omnis cellula e cellula”. “All cells are from other pre-existing cells.”

The Cell Theory 1. All living things are composed of one or more cells. 2. Cells are the basic units of structure and function in an organism. 3. Cells come only from existing cells.

both in size, shape, and internal organization. Cells are Diverse… both in size, shape, and internal organization.

Why Are Cells So Small? Transport- Cell volume to surface area demands a small size. Control- Nucleus to cytoplasm consideration.

Note: 1.0 mm = one millionth of a meter How small can a cell be? Mycoplasmas - bacteria that are 0.1 to 1.0 mm. (1/10 the size of regular bacteria). Note: 1.0 mm = one millionth of a meter

All cells have…… Plasma (cell) Membrane Nucleus (eukaryotes only) Cytoplasm (area inside the cell) Organelles (structures with specialized functions)

Cell Types Prokaryotes- simple cells that do not have internal membranes. Example = bacteria Eukaryotes- more complex cells that do have internal, membrane-bound structures. Examples = plants and animals

Key Differences: Eukaryotes Prokaryotes Have a nucleus and other membrane bounded structures. DNA is organized into chromosomes. Prokaryotes Lack a nucleus and other membrane bounded structures. DNA is not organized into chromosomes.

Examples Prokaryotic Eukaryotic Nucleus

Eukaryotic Prokaryotic

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

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