Introduction to Cells

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Introduction to Cells

• Unit 4

2
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!

Date Session Activity Page
1/27 1/28 1 What Does it Mean to be Alive? 1
Introduction to Cells Note Guide 2
Photosynthesis Cellular Respiration Homework 3
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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?

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WARM UP

• Surprise!!
• We are going outside for our warm-up!

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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

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BIOLOGY

• BIO Life
• OLOGY study of
• BIOLOGY Study of Life!

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5 Characteristics of Living Things

• Organized structure
• Made of cells!
• Grow and Develop
• Respond to Environment
• Reproduce
• Need/use energy

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Quick Comprehension !

• Whiteboards ready!
• Living (L)
• Non-living (N)

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Living or Nonliving?
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Living or Nonliving?
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Living or Nonliving?
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Living or Nonliving?
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Living or Nonliving?
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Lets Start With Organized Structure

• Organism- A living thing made up of AT LEAST one
  cell (most have many cells)
• Wait a Minute!....Whats a cell???

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What is a cell?

• Cell- the smallest unit of any living thing

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2 Types of Organisms One Cell or Many
Cells?

• Unicellular

• Multicellular

• Organisms made up of only ONE cell
• Examples amoeba, bacteria

• Organism made up of MANY cells
• Examples plants, animals, humans

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OKThe truth about cells

• The reason cells are important to life is
  summarized in the Cell Theory
• Every living thing is made of one or more cells.
• Cells carry out the functions needed to support
  life.
• Cells can only come from other living cells.

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Cell Theory Example

• Every living thing is made up of one or more
  cells.
• A polar bear is a multicellular organism.

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
400x
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.
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Quick Comprehension !

• Whiteboards Ready!

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Quick Comprehension !

• What Is Biology ?

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Quick Comprehension !

• What determines if something is living?

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Quick Comprehension !

• Whats an organism ?

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Quick Comprehension !

• What is this cell theory and why do I
  care?

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Quick Comprehension !

• What are the 2 types of organisms?

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WellThere are also 2 Types of Cells
Eukaryotic
Prokaryotic
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2 Types of Cells

• Eukaryotic Cell

• Prokaryotic Cell

• NO NUCLEUS
• EXAMPLE bacteria cells (unicellular)

• HAS A NUCLEUS
• EXAMPLE plant and animal cells (multicellular)

Nucleus
What is the exception to the rule?
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Quick Comprehension !

• Whiteboards Ready!
• Multicellular or Unicellular
• AND
• Eukaryotic or prokaryotic
• ME UP

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Unicellular or multicellular?

• E. Coli
• Bacteria Cell

Eukaryotic or prokaryotic?
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Unicellular or multicellular?

• Human Red Blood Cells

Eukaryotic or prokaryotic?
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Unicellular or multicellular?

• Fungi Cell

Eukaryotic or prokaryotic?
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Unicellular or multicellular?

• Human Cheek Cells

Eukaryotic or prokaryotic?
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Unicellular or multicellular

• Onion Root Cells

Eukaryotic or prokaryotic
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Unicellular or multicellular?

• Spiral Bacteria

Eukaryotic or prokaryotic?
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Unicellular or multicellular

• Leaf Cells

Eukaryotic or prokaryotic?
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Unicellular or multicellular

• Protists

Eukaryotic or prokaryotic?
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Tie It TogetherWhat Do All Cells Need?

• Ok, regardless if an organism is unicellular or
  multicellular prokaryotic or eukaryoticwhat do
  they all need to function????
• ENERGY!!!!

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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

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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!

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HOMEWORK

• Complete the reading on Photosynthesis Cellular
  Respiration and answer the questions.
• DONT forget to create the Venn diagram on the
  back!!

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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