Mr. Green

8-2-02Is it alive?

Mr. Green

• “All living things are made up of cells.”– Schleiden & Schwann

• What does it mean to be alive? (which movie is this from?)

– “If I only had a brain…”» Scarecrow

– “If I only had a heart…”» Tin Woodman

– “If I only had courage…”» Cowardly Lion

Mr. Green

• Mr. Green Acronym

• What’s Mr. Green?

• An acronym that’s used to remember terms by remembering a simpler word.– TSN: The Sports Network

– A.K.A: Toronto Sports Network…

Mr. Green

• Movement

• response system

• Growth

• Reproduction

• Exchange of Gases

• Exchange of Liquids

• Nutrient Transfer

Mr. Green

• “M”

• Movement– There is definite movement for a specific

purpose.– The tree moved the sap down the tree

• Specific purpose!

– The leaves moved in the wind• No specific purpose!

Mr. Green

Mr. Green

• “R” (first one)• Response System

– There is a protective response to avoid situations that are dangerous

• My finger jerked backward in response to the needle prick– Response system (nervous system)

• When I stuck the tack in the wall, there was no response...– No response system

Mr. Green

Mr. Green

• “G”

• Growth: An increase in size at some point during a lifetime (not necessarily current)

• Adult humans do not grow taller, but they did grow at one point in their lives.– They can still grow rounder…

Mr. Green

Mr. Green

• “R” (2nd one)

• Reproduction: New forms of life must be able to be produced from the existing one.

• The Cow had a calf which would one day grow into another adult Cow.– New Cow from old Cow

• The stick was broken into seven pieces.– Original stick is just broken into smaller pieces

Cow

Mr. Green

• “E” (1st one)

• Exchange of Gases: The acquiring of one type of gas, usually exchanging it for another type.

• The beans that Justin ate for supper last night increased his gas exchange amount.

• The candle needed oxygen to burn and gave off ash and smoke particles.

Candle and Flatulence

Mr. Green

• “E” (2nd one)

• Exchange of liquids: Living organisms need to obtain liquids (dehydrated) and get rid of excess liquids (urinate).– After drinking 15 Dr. Peppers, Forest Gump

needed to use the washroom.– After 2 hours of football practice, Jared

needed to drink lots of water.

Mr. Green

Mr. Green

• “N”

• Nutrient Transfer: Living organisms need to acquire nutrients to support building new tissue for development and growth.– Eating vegetables can give you many

nutrients and minerals you need for healthy skin.

– Meats, Poultry, Pork and certain veggies give you protein for building new cells.

Mr. Green