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What do the Plants/Animals in the photo hav e in common?. Chapter 1 Cells, Reproduction, & Heredity. How do organisms of the same species end up looking different?. How do people get their traits?. T able of Contents Cells.

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chapter 1 cells reproduction heredity

Chapter 1Cells, Reproduction, & Heredity

How do organisms of the same species end up looking different?

How do people get their traits?

Table of Contents

Cells

the history of cells
The History of Cells

1665- Robert Hooke- creates the 1st microscope. (up to 30x) Discovered dead “cells” & gave cells their name.

1675- Anton van Leeuwenhoek- improves microscope. (up to 300x) Discovered live cells in pond water.

Bacteria discovered soon after (thru cow milk!) which led to medicine/vaccines for animals & people!

cell theory
Cell Theory

Cell (w.w)- smallest unit of life.

Cell Theory

Cells are the building blocks of all living things. (all living things are made of cells)

All life processes take place in cells. (energy in food is released, growth & reproduction, removal of waste)

New cells come from existing cells. (all living things begin as 1 cell & divide from there. Cell division causes you to grow)

types of cells
Types of Cells

2 Types of Multicellular Cells

Animal

Plant

parts of a cell
Parts of A Cell

http://www.youtube.com/watch?v=-zafJKbMPA8

Do your Word Wall last!

Plant Cells Only

  • Cell wall(w.w)- stiff outer layer that surrounds/protects cells & give them their shape.
  • Chloroplasts(w.w)-makes plant food (sugar) thru photosynthesis. Found mostly in plant leaves
    • Chlorophyll (w.w)- inside chloroplasts- the stuff that makes plants green! Traps Sunlight!

Plant/Animal Cell Parts

  • Organelle(w.w)- structures found inside cells that perform specific jobs.
  • Cytoplasm(w.w)- clear jelly-ish substance that holds organelles in place
  • Nucleus(w.w)- The boss/directs cell activities
    • DNA(w.w)- provides info to Nucleus about every function of life. Genetic code bound into chromosomes. Made of sugar/phosphate base & nucleotides. ACTG
    • Chromosome (w.w)- contains genetic code of DNA describing everything about you!...or whatever creature we find out you are...dun dundunnnn... I hope one of you wrote this down! Hehehe! 
  • Nuclear membrane(w.w)-gel-ish substance around/protecting nucleus
  • Mitochondria(w.w)-Power house. All energy from food/water produced here.
    • Respiration(w.w)- allows plants/animals to complete all cell/life activities.
  • Cell membrane(w.w)- holds cell together. Anything coming/going passes thru.
  • Vacuole(w.w)- stores nutrients/waste
6 1 review q s 12 points
6.1 Review Q’s 12 points
  • Why was the invention of the microscope important? (3 pts)
  • What is a cell? What are the 3 parts to cell theory? (4 pts)
  • Create a Venn diagram/table. List 3 similarities of a plant/animal cell and 2 differences. (5 pts)

Create Cell Activity ~ 50 points

  • Need: candy/crafts/paper plates/glue/pen
  • In Notebook; Labs & Activities: Cell Lab: You & partner’s name
  • Create list of your cells parts & the material you will be representing them with. Make sure you & your partners name is on the back of the paper plate.
  • Create your plant/animal cell using the materials you selected. LABEL THE PARTS!