Presentation on theme: "Introduction to Cells Unit 4. PRE-WARM UP: Start a new Table of Contents – “Life Science – Molecular Biology” Write your homework – leave it to be stamped."— Presentation transcript:
Introduction to Cells Unit 4
PRE-WARM UP: Start a new Table of Contents – “Life Science – Molecular Biology” Write your homework – leave it to be stamped MAKE SURE YOUR YOU HAVE SOMETHING TO CORRECT YOUR TEST WITH! DateSession # ActivityPage # 1/27 & 1/28 1What Does it Mean to be Alive?1 Introduction to Cells Note Guide2 Photosynthesis & Cellular Respiration Homework3
PRE-WARM UP: On page 1 of your notebook, answer the following questions: – What does it mean to be alive? How do you determine if something is living? – What do the words biotic & abiotic mean?
WARM UP: Surprise!! We are going outside for our warm-up!
Living vs. Nonliving TASK 1: Make a list of 5 living & 5 non-living things TASK 2: Make a list of characteristics you used to determine if something living
BIOLOGY BIO= Life OLOGY= study of BIOLOGY = Study of Life!
5 Characteristics of Living Things: Organized structure Made of cells! Grow and Develop Respond to Environment Reproduce* Need/use energy
Quick Comprehension ! Whiteboards ready! Living (L) Non-living (N)
Living or Nonliving?
Let’s Start With Organized Structure… Organism- A living thing made up of AT LEAST one cell (most have many cells) Wait a Minute!....What‘s a cell???
What is a cell? Cell - the smallest unit of any living thing
2 Types of Organisms: One Cell or Many Cells? Unicellular Organisms made up of only ONE cell Examples: amoeba, bacteria Multicellular Organism made up of MANY cells Examples: plants, animals, humans
OK…The truth about cells: The reason cells are important to life is summarized in the Cell Theory : 1.Every living thing is made of one or more cells. 2.Cells carry out the functions needed to support life. 3.Cells can only come from other living cells.
Cell Theory: Example 1.Every living thing is made up of one or more cells. A polar bear is a multicellular organism. 2. Cells carry out the functions needed to support life. Every type of cell has a different function, for example fat cells provide extra energy as well as insulation. 400x 3. Cells come only from other living cells. Each polar bear cub began as a single cell. That single cell split into 2, those 2 split into 4 and so on…
Quick Comprehension ! Whiteboards Ready!
Quick Comprehension ! What Is Biology ?
Quick Comprehension ! What determines if something is living?
Quick Comprehension ! What’s an organism ?
Quick Comprehension ! What is this cell theory and why do I care?
Quick Comprehension ! What are the 2 types of organisms?
Well…There are also 2 Types of Cells EukaryoticProkaryotic
2 Types of Cells Eukaryotic Cell HAS A NUCLEUS EXAMPLE: plant and animal cells (multicellular) Prokaryotic Cell NO NUCLEUS EXAMPLE: bacteria cells (unicellular) Nucleus What is the exception to the rule?
Quick Comprehension ! Whiteboards Ready! -Multicellular or Unicellular AND -Eukaryotic or prokaryotic “ME” & “UP”
Unicellular or multicellular? E. Coli Bacteria Cell Eukaryotic or prokaryotic?
Unicellular or multicellular? Human Red Blood Cells Eukaryotic or prokaryotic?
Unicellular or multicellular? Fungi Cell Eukaryotic or prokaryotic?
Unicellular or multicellular? Human Cheek Cells Eukaryotic or prokaryotic?
Unicellular or multicellular Onion Root Cells Eukaryotic or prokaryotic
Unicellular or multicellular? Spiral Bacteria Eukaryotic or prokaryotic?
Unicellular or multicellular Leaf Cells Eukaryotic or prokaryotic?
Unicellular or multicellular Protists Eukaryotic or prokaryotic?
Tie It Together…What Do All Cells Need? Ok, regardless if an organism is unicellular or multicellular – prokaryotic or eukaryotic…what do they all need to function???? ENERGY!!!!
Where Do They Get Their Energy? It Depends… Animal Cells – consume food and their cells create energy through the process of CELLULAR RESPIRATION Plant Cells – use the sunlight and their cells convert it into energy through the process of PHOTOSYNTHESIS
But How…? Read about the 2 processes for now, and next time we will see how each part of a cell has a specific job to do to make these processes possible! – DO NOW: Read the Photosynthesis & Cellular Respiration article and answer the questions – HOMEWORK: Create a Venn diagram or chart on the back to compare & contrast the processes!
HOMEWORK Complete the reading on Photosynthesis & Cellular Respiration and answer the questions. DON’T forget to create the Venn diagram on the back!!
Extra Credit Opportunity Discovery of Cells: 10 points Research the following information and write a well crafted paragraph about it: – When was the microscope invented? – Who invented the microscope? – When was the first cell discovered? – Who discovered it? – Add 2 additional facts that you found that support this topic and its importance to the field of biology