Start New Unit – Cell Biology

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Friday, March 9, 2012Monday, March 12, 2012

Page 120

Are Viruses Alive?/Characteristics of LifeWarm Up:

1.Draw a food web OR food chain that involves at least 4 organisms.

CHOOSE ONE to draw and discuss.

Homework: Read Section 1.1 of Unit E in textbook. Define the four vocabulary words and answer questions 1-5 on page 15E.

Friday, March 9, 2012Monday, March 12, 2012

Record your decision after reading the “Are Viruses Alive” article. Make your decision whether you think they are alive or not, then support your claim with evidence from the text!

After you’ve completed the above task, open your text book to section 1.1 of Unit E and list the characteristics something must have to be considered living below.

After reviewing this, does it change your mind about a virus? Why or why not?

Cell Theory

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Tuesday, March 13, 2012Wednesday, March 14, 2012

Page 122

Cell Theory

Warm Up:

1.Classify as living or non-living2.List the characteristics you used to make your conclusion

Homework:

Tuesday, March 13, 2012Wednesday, March 14, 2012

Characteristics of Living Things Review•Organized

•Use energy for chemical processes –

•Respond to stimuli

•Grow, develop, adapt

•Reproduce / contain genetic material

•All living things are made of cells.

Unicellular Multicellular

Cell Theory

Object Notes to make decision

Rock

Dog

Fire

bacteria

soil

Unicellular vs. Multicellular •Made of one single cell•Found mostly in or near water•Mainly bacteria•Called “Prokaryotes”•Can reproduce without the aid of another organism (Asexual)

•Split apart and copy

•Made of many (with different jobs)•more complex•Different parts of organism have different functions (roots vs. leaves) (heart vs. stomach)

•Called “Eukaryotes”•Need another individual to reproduce (Sexual)

Cell Theory

1. Every living thing is made up of at least one cell

2. Cells create structure and functions of life

3. Cells only come from other cells

Significant Scientist FoldableHooke, Leeuwenhoek, Schleiden, Schwann, and Virchow

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4 bullet points about their significance

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Warm up

Sir Issac Newton once said, “If I have seen further, it is because I was standing on the shoulders of giants.

Based on what you have learned, what is your interpretation of that statement

Cell Parts/Organelles

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Thursday, March 15, 2012Friday, March 15, 2012

Page 124

Cell Parts/Organelles

Warm Up:

How are the various jobs in a company, like Wal-mart, divided amng people?Why is it effective to divide labor this way?

Homework: Finish

Attach Video Notes

Attach Organelle Chart

Attach Homework handout

Thursday, March 15, 2012Friday, March 15, 2012

Cell Cycle

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Monday, March 19, 2012Tuesday, March 20, 2012

Page 126

Cell Cycle

Warm Up:

Sir Issac Newton once said, “If I have seen further, it is because I was standing on the shoulders of giants. Based on what you have learned, what is your interpretation of that statement. Homework:

Cell cycle - normal sequence of the development and division of a cell

Three main stages:1) Interphase - cell is performing normal

functions and preparing to divide - the longest part of the

cycle - cell grows about twice its

original size - goes about regular cell

activities - DNA is copied to prepare

for mitosis2) Mitosis - nucleus splits and divides

- prokaryotes do not do this (no nucleus)- usually the shortest period in cycle- goal of mitosis is to transfer DNA and other cell structures from parent cell to new cell

3) Cytokinesis – occurs directly after mitosis - parent cell pinches off - two genetically identical cells form

Monday, March 19, 2012Tuesday, March 20, 2012

Cell CycleMitosis

Interphase

InterphaseInterphase

Cytokinesis

Online video tutorial: http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_the_cell_cycle_works.html

Interphase

Mitosis

Cytokinesis

Cell Cycle Diagram

Read Section 2.3 E and Answer Questions 1-6

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Wednesday, March 21, 2012Thursday, March 22, 2012

Page 130

Cell Transport

Warm Up:

Identify following parts of the cell cycle: Interphase, Prophase, Metaphase, Anaphase, Telophase.

What happens during cytokinesis?????

Homework: Read section 2.3E (pg. 56 – 63E) and answer questions 1-6.

•Exchange of materials between a cell and the environment•Water is necessary for transport of most materials.•The cell membrane is semi-permeable – some things can pass across. Passive Transport (usually small particles)Relies on concentration of substances and thermal energy (think of dye spreading in a beaker of water)Two main categories:1. Diffusion: movement from an area of high concentration to low concentration2. Osmosis: diffusion of water across a semi-permeable membraneActive Transport (usually large particles)Relies on the cell providing energy supply (ATP)Three Categories:1. Transport Proteins: Special proteins use ATP to pump materials into cell2. Endocytosis: membrane surrounds particles to move them inside3. Exocytosis : release of substances from inside vesicles through joining and then releasing from the cell membrane

Wednesday, March 21, 2012Thursday, March 22, 2012

Exchanging materials between the cell and its environment

Passive Transport Active Transport

Diffusion

Osmosis

Transport Proteins use ATP

Endocytosis (reverse for Exocytosis)

Video’s and Examples

Passive and Active Transport AnimationsEndocytosis and Exocytosis Animation

PracticeDIRECTIONS- First Identify if the process is moving materials by active or passive transport. Then determine if the process is diffusion, osmosis, transport proteins, endocytosis, or exocytosis.

1. WATER MOVES OUT OF PLANT LEAF, CAUSING IT TO WILT AND DRY.

2. IF YOU PLACE A TEA BAG IN WATER AND TEA IS MADE.

3. IF FOOD THAT IS TOO LARGE TO ENTER THROUGH THE CELL MEMBRANE IS BROUGHT INTO THE CELL TO KEEP IT FROM DYING.

4. YOU SMELL THE DELICIOUS ODOR OF BAKING COOKIES BEFORE YOU ENTER THE KITCHEN.

5. FRESH WATER MOVES INTO A SINGLE CELLED ORGANISM.

6. A ONE CELLED AMEOBA SURROUNDS A PARTICLE OF FOOD.

7. EXCESS SALT THAT AN IGUANA HAS SOAKED UP IN THE OCEAN IS REMOVED THROUGH THE NOSTRILS.

8. IF A PLANT PUMPS MINERALS FROM THE SOIL TO THE ROOT OF THE PLANT.