https://youtu.be/gFuEo2ccTPA Cells 1.2 Section 22-34 https://youtu.be/gFuEo2ccTPA

Spontaneous Generation

Spontaneous Generation

Cell Theory All living things are made of cells Cells come only from other cells Cells are the building blocks of life https://youtu.be/4OpBylwH9DU

DIVERSE Cells are diverse in nature vary in size, shape,

ONE OR MORE One Cell More than One Cell

BALANCE Cells must constantly balance certain life processes: Intake and storage of nutrients Growth Response to stimuli Exchange of gases Waste removal Reproduction

Cells Prokaryotes Bacteria Eukaryotes Plant cells Animal cells

Prokaryote Cell Simple cells No organelles

Eukaryotic Cells Complex Cells Have Membrane Bound Organelles

ANIMAL CELLS AND PLANT CELLS Basic Components Animal Cells Specific Features Plant cells

ANIMAL CELL OVERVIEW

PLANT CELL OVERVIEW

WS 2-1 Introduction to Cells Using your Text Book page 27 – Complete the diagram on Page 1

WS 2-1 Introduction to Cells Using your Text Book page 27 – Complete the Animal and Plant Cell Colouring WS on pages 2 & 3

Bill Nye the Science Guy https://vimeo.com/116866613 Video WS Cells Introduction

ORGANELLES Organelles are specific structures that carry out specific tasks

CYTOPLASM Jelly-like fluid that contains organelles

Cell Membrane A thin outer covering that regulates the movement of materials into and out of the cell

Cell Wall Plant Cells ONLY Structure that surrounds the cell membrane Helps to protect and maintain shape of cell

Nucleus In most cells the largest organelle Central Command Directs all cellular activities: Movement Growth Contains the cell’s genetic material or DNA

Vesicles & Lysosomes Vesicles act as temporary storage compartments (transport proteins) Lysosomes break down food particles, cell wastes, and worn-out organelles. Much smaller than Plant Vacuoles

Vacuole Plant Cells VERY VERY LARGE Sometimes occupying up to 80% of the entire cell Act as storage compartments for waste products and Water

Ribosomes Protein synthesizers – makers of protein

Mitochondria Single = Mitochondrion Power Plant of the cell Makes Energy required for Cellular processes

Mitochondria Cellular Respiration C6H12O6 + 6O2  6CO2 + 6H2O

Chloroplast Plant Cells ONLY Carries out photosynthesis – makes energy for plants IS GREEN!!!

Chloroplast 6H2O + 6CO2  C6H12O6 + 6O2

Endoplasmic Reticulum Two forms: Smooth and Rough Endoplasmic Reticulum Where of proteins and fats (lipids) are made Studded with Ribosomes

GOLGI BODY Process and sort proteins for transport outside of the cell https://youtu.be/bD4z27ASN1M

WS 2-1 Introduction to Cells Using your Text Book & Notes in point form  Complete Table on Page 4 & 5

WS 2-1 Introduction to Cells Complete the Cell Analogy WS on Page 6

Bacteria and Viruses

Bacteria One-celled living organisms Prokaryotes Smaller than plant or animal cells

Prokaryote vs Eukaryote WS 2-1 Page Small No membrane bound organelles Genetic Material (DNA), ribosomes, cell wall and cell membrane, cytoplasm Larger Complex with membrane bound organelles (like nucleus, ER, Golgi body) Genetic Material (DNA), ribosomes, cell wall (Plants Only) and cell membrane, cytoplasm

Bacteria Size

Bacteria Come in 3 basic shapes cocci (spheres) bacilli (rod shaped) spirilla (corkscrew shape)

Bacteria SHAPE

Beneficial Bacteria Found in our digestive tracts and in the digestive tracts of all animals – help to break down our food

Beneficial Bacteria Bacteria are used to make many commercial products Cosmetics Cheese Bread

Bad Bacteria Bacteria can invade both plant and animal cells Bacteria produce toxins which kill or affect the normal functioning of cells https://youtu.be/GFef0R1xwvY

Bacteria REPRODUCTION bacteria double in number every 20-15 minutes under ideal conditions! 1 bacteria could fill the gym within 24 hrs under ideal conditions! 

Viruses Are not cells Are very tiny Must be in a living cell in order to reproduce Not “ALIVE” until inside a host cell

Viruses – variety of shapes and sizes

Viruses – variety of shapes and sizes

Virus Bacteria Animal Cell

Viruses Are PARASITES Hijack the cell’s machinery to produce copies of itself Most of the time the host cell is killed in the end

Viruses that attack human cells HIV Influenza Small Pox Measles Polio Ebola Vaccines are available for some but not all viruses https://youtu.be/3aNhzLUL2ys

Zika Virus https://youtu.be/JUlGN5XJ5dc

WS 2-1 Introduction to Cells Prokaryote Colouring page 8

Section Quiz

REVIEW ASSIGNMENT Complete Page 9 & 10 3D CELL PROJECT