Cells.

Slides:



Advertisements
Similar presentations
Cells: The Basic Units of Life
Advertisements

Cell Jeopardy Final Jeopardy Cell types Organelles More
C ELLS AND THE C ELL T HEORY SC Standard B-2.1 Recall the three major tenets of the cell theory. B-2.2 Summarize the structure and functions of organelles.
Cells. Robert Hooke In his book, entitled Micrographia, Hooke was the first to use the term cell From the Latin “cella” meaning “small chamber”
Early Contributions Robert Hooke - First person to see cells, he was looking at cork and noted that he saw "a great many boxes. (1665) Anton van Leeuwenhoek.
Cells Basic unit of structure of living things Basic unit of structure of living things Use energy Use energy Grow & develop Grow & develop Reproduce.
Building blocks of life!
In this powerpoint, you will learn about:
“The smallest unit that can carry out all the processes of life.”
Chapter 1 Cells: The Basic Units of Life
The basic unit of all living things
Cells II Cells Part II.
L3 Biology Chapter 1 Section 2
THE CELL “The smallest unit that can carry out all the processes of life.” Why are they important? Click the pic.
A Tour of the Cell.
The Cell You are made of trillions of cell. As we study cells, remember this important truth:
Objectives List scientists who contributed to the cell theory
Nucleolus Makes ribosomes in the nucleus. Chromatin  Contains DNA; coils into chromosomes.
Mr. Gaccione Power point presentation of the cell.
What is Life?. A “little” history… theory.
The Living Cell.  “Cell” –Named by Robert Hooke who used microscope to look at cork (1663) –Described by Anton van Leeuwenhoek who designed his own microscope.
AIM: How do we describe cells?
Objectives List scientists who contributed to the cell theory List the components of the cell theory Compare prokaryote and eukaryote cells Label a plant.
HOW WELL DO YOU KNOW THE CELL?. NUCLEUS Contains DNA – genetic material of the cell 2 membranes surrounding it, the envelope/membrane Controls all of.
The Structure and Function of Cells Cell Theory Parts of a cell Organelles Cell Diversity Crossing the Membrane Unit 5.
Robert Hooke naturalist, philosopher, inventor, architect.... (July 18, March 3, 1703) In 1665 Robert Hooke publishes his book, Micrographia, which.
Cell Structure and Function 1665 Robert Hooke coined the term “cells” 1830 Schleiden and Schwann All living things are composed of cells Cell is the basic.
Cellular Structure & Function. Cell Theory  Anton Von Leeuwenhoek  Created 1 st light microscope  Robert Hooke  Coined the term “cells” – resembled.
Chapter 4 A tour of the cell. Cell Theory u All living matter is composed of one or more cells. u The cell is the structural and functional unit of life.
INTRODUCTION TO CELLS. History of the Cell ________________ _____________________, 1674 _______________, 1838 ______________, 1839 _______________, 1855.
The Cell Revisited! THE CELL IS THE BASIC UNIT OF ALL LIFE!
 The cell theory is a fundamental concept in biology. It states:  All living things are composed of cells.  The cell is the basic structural unit of.
Cells and Cell Organelles
CHAPTER 2 cells P EARLY DISCOVERIES Anton Van Leeuwenhoek - made microscopes. - made microscopes. - saw “critters” in a drop of water never.
Cells: The Basic Unit of Life
CELLS Chapter 7.1. CELL BIOLOGISTS Anton van Leeuwenhoek - Dutch lens maker who developed the first simple microscope Anton van Leeuwenhoek - Dutch lens.
A Tour of the Cell.
Cell Structure and Function. The “Discovery” of the Cell Robert Hooke – first to see and identify cork “cells.” 7-1.
Chapter 1 C Cells: The Basic Units of Life. Section 1 The Diversity of Cells: Cell – the smallest unit that can perform all the processes necessary for.
Objectives List scientists who contributed to the cell theory
Cell Structure and Function
The Cell Theory – a timeline Late 1500’s: -first lenses used in Europe -used to determine cloth quality (weave and precision) -combos of lenses gave better.
Cells – the smallest structure that carries out life activities.
Cell Types and Cell Organelles. Cell Theory Cell Theory: Cell Theory: All living things are composed of cells All living things are composed of cells.
Cells. Cell Theory All living things are made of cells Cells are the basic units of structure, function and physiology in living things Living cells can.
A Tour of the Cell.
CELLS Chapter 7.2. CELL THEORY Anton van Leeuwenhoek - Dutch lens maker who developed the first simple microscope Anton van Leeuwenhoek - Dutch lens maker.
The structures and functions of the cell Cell Theory Term “cell” was coined in 1665 by Robert Hooke He looked at a slice of dried cork.
Cell Theory All organisms are made of one or more cells. The cell is the basic unit of all living things. All cells come from existing cells.
Chapter 7. Cell Discover & Theory What made the discovery of the cell possible?
Daily Questions 1.A cell that does not contain a nucleus is a ____________________. 2.The portion of the cell outside the nucleus is the _________________.
The Cell Theory SOL BIO 2a. The Cell Theory  The development and refinement of magnifying lenses and light microscopes made the observation and description.
CELL STRUCTURE AND FUNCTION. CELLS Smallest living unit Most are microscopic.
The Discovery of Cells Later, the observations of Matthias Schleiden and Theodore Schwann (1830’s) lead to the cell theory: All organisms are made of.
Cell Organelles. *Review* Types of Cells Prokaryotic Bacteria Archaea Eukaryotic Plants Animals Fungi.
CELL STRUCTURE Eukaryotic cells contain many organelles: small structures within a cell, sometimes surrounded by a membrane.
Cells and Cell Organelles
HOW WELL DO YOU KNOW THE CELL?
The Cell Theory 1. Every living organism is made of one or more cells.
Unit 2: Cells.
Types of Cells There are two broad groups of cells Organelle
Cells and Cell Organelles
Discovery of Cells 1600’s Anton Van Leeuwenhoek made some of the earliest microscopes Robert Hooke Published book of drawings of microscopic observations.
Cells The Basic Unit of Life
Cell Structure and Function
Cell Types and Cell Organelles
Cells.
The Cell The basic unit of life.
The Cell Theory All living things are made up of cells
Types of Cells There are two broad groups of cells Organelle
Presentation transcript:

Cells

Robert Hooke -1655

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

Anton van Leeuwenhoek A Dutch cloth merchant who became interested in studying cells. Was the first to see and describe bacteria, sperm cells and protista

Anton van Leeuwenhoek microscope

Anton van Leeuwenhoek microscope

Theodor Schwann (1838) – all animals are composed of cells. Matthias Schleiden (1838) – all plants are composed of cells.

Rudolf Virchow (1856) “Omnis cellula e cellula” “where a cell arises, there a cell must previously have existed”

Modern Cell Theory All organisms are composed of cells. Cell come from other cells. Cells are the smallest unit of structure and function in living organisms.

Prokaryotic Cells Lack a true nucleus Size: 1-10 microns Include bacteria

Basic Bacterial Cell

Eukaryotic Cells Have a true nucleus Size: 10-100+ microns Include plants, animals, fungi and protista

Basic Cell Design Cell Membrane – surrounds the cell Cytosol – “cell liquid” Organelles – “little organs” Nucleus

Cell Membrane Regulates the passage into and out of the cell Provides protection Helps in cellular recognition of molecules

Cytosol/Cytoplasm Cytosol: the liquid portion inside the cell membrane Cytoplasm: the cytosol and organelles, but not the nucleus

Nucleus

Nucleus Contains DNA or chromosomes. Also called chromatin. The cell’s “brain” or CPU. DNA codes for protein production.

Cytoplasm Contains the cytosol and organelles

Organelles Ribosomes Endoplasmic reticulum Golgi bodies or complex Lysosomes Mitochondria Chloroplasts

Ribosomes

Ribosomes Are the cell’s protein factories Read mRNA code as seen on the right Maybe free in the cytoplasm Or bound to the ER

Endoplasmic Reticulum A membrane network within the cytoplasm Two types: Rough – with ribosomes attached (RER) Or Smooth – with no ribosomes (SER)

Rough ER Helps the ribosomes in the formation of proteins. Used to transport proteins to other parts of the cell

Smooth ER Stores Calcium in muscles Forms fats Detox center in liver cells

Golgi Body

Golgi Body Processes unfinished proteins Packages finished proteins Distributes finished proteins

Lysosomes

Lysosomes Digestive sacs While digest microbes in white blood cells called macrophages Helps to form fingers and toes Aids in the loss of the tadpole’s tail

Helps to recycle cellular structures Sometimes called “suicide sacs” Involved in rheumatoid arthritis

Mitochondria

The cell’s powerhouse Involved in cellular respiration Helps to convert “food” into cellular energy - ATP

Chloroplasts

Site of photosynthesis Helps to convert light energy, water, and carbon dioxide into sugars.

Vacuole Storage area Helps to give support in plant cells

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

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