1 / 29

Introduction to Biology

Introduction to Biology. What are the characteristics of living things?. The science of “LIFE”. BIOLOGY =__________________ = ________________. Study of living things. Bacteria. It’s Alive!. Characteristics of ALL LIVING THINGS. ______________________________

Mia_John
Télécharger la présentation

Introduction to Biology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to Biology What are the characteristics of living things?

  2. The science of “LIFE” BIOLOGY =__________________ = ________________ Study of living things Bacteria

  3. It’s Alive!

  4. Characteristics of ALL LIVING THINGS • ______________________________ • ______________________________ • ______________________________ • _____________________________ • ______________________________ • ______________________________ • ______________________________ • ______________________________ Reproduce Made of cells. Based on universal genetic code Grow and develop Obtain and use materials & energy Respond to their environment Maintain a stable internal environment As a group, change over time

  5. ALL LIVING THINGS ARE: Made of cells The _____ is the ______________. CELL basic unit of life http://sps.k12.ar.us/massengale/study_guides_bi.htm

  6. ALL LIVING THINGS ARE: Made of cells UNICELLULAR ____________organisms are _____________ made of only 1 cell bacteria (Ex: _________) Image from: http://www.agen.ufl.edu/~chyn/age2062/lect/lect_06/bacsiz.GIF

  7. ALL LIVING THINGS ARE: Made of cells MULTICELLULAR _________________ organisms_______ as _________ but as adults are _________________________ Ex: (___________ __________ ) BEGIN ONE CELL MADE OF MANY CELLS a human a tree Images from: http://www.angelbabygifts.com/ http://www.inclusive.co.uk/downloads/images/pics2/tree.gif

  8. ALL LIVING THINGSReproduce SEXUAL REPRODUCTION ________________________ _____________the ___________________ from _____________ ________________ Seen in animals and plants combines genetic material 2 parents sperm + egg = baby Family image from: http://babyhearing.org/Parenet2Parent/index.asp

  9. ALL LIVING THINGSReproduce ASEXUAL REPRODUCTION _________________________ makes a new organism using the ________________ from _________________ Seen in bacteria, plants, and some animals genetic material ONLY 1 PARENT Planaria animation: http://www.t3.rim.or.jp/~hylas/planaria/title.htm

  10. All living things share a universal genetic code Hereditary material = DNA ______________________ DEOXYRIBONUCLEIC ACID Segment of DNA ________________ with instructions for one _________ is called a ________. PROTEIN GENE Image from: http://sbchem.sunysb.edu/msl/dna.gif

  11. ALL LIVING THINGS Grow & develop Image by Riedell SINGLE CELLED In _____________ organisms, like a bacterium, growth is mostly a simple ________________. INCREASE in SIZE

  12. ALL LIVING THINGS Grow & develop Image by Riedell Image from: http://www.bcps.org/offices/lis/models/life/images/grow.JPG Multicellular organisms grow bigger by __________________ AND _____________________. increasing cell size increasing cell number

  13. Metabolism & Energy Use

  14. DIFFERENT KINDS DIFFERENT FUNCTIONS MULTICELLULAR ORGANISM don’t just contain MANY CELLS… but many _______________ of cells with _____________________ Image from: http://www.isscr.org/images/ES-cell-Fig-2.jpg

  15. PROCESS OF CHANGING The ________________ EMBRYONIC STEM CELLS into different looking ADULT cells doing different jobs = __________________________ DIFFERENTIATION Image from: http://www.ncu.edu.tw/~ls/graph/faculty_pictures/whole_time/SLC/SLC_lab-1.jpg

  16. All cells have the SAME DNA... _________________________ what makes them ___________ is _______________ are _______________________ different WHICH GENES TURNED ON or OFF See end of show for image sources

  17. It’s like having a whole library full of books, but reading only the books that are important to you. http://school.discovery.com/clipart/clip/report2.html http://www.adc.state.az.us/programs/offlibsvs.html

  18. grow and develop To________________,organisms _______ a constant supply of ____________________ & ____________ need ALL LIVING THINGSTake in Materials & Use Energy BUILDING MATERIALS ENERGY! This sheep uses the MOLECULES and ENERGY in the food it eats to make “more sheep” http://ag.ansc.purdue.edu/sheep/ansc442/Semprojs/2003/spiderlamb/eatsheep.gif

  19. ALL LIVING THINGSTake in Materials & Use Energy AUTOTROPHS ___________ use energy from sunlight or chemicals to ________________ make their own food Image from: http://vilenski.org/science/safari/cellstructure/chloroplasts.html GREEN PLANTS Ex: _____________ use ____________to turn _________ into _________ photosynthesis glucose sunlight http://www.inclusive.co.uk/downloads/images/pics2/tree.gif

  20. ALL LIVING THINGSTake in Materials & Use Energy ______________ get their energy by ___________________ HETEROTROPHS consuming other organisms Animals Ex: ________ (including you) and _________________ most bacteria  Image from: http://www.epa.gov/region5/superfund/ecology/images/fishcartoon.gif

  21. Vocab word chemical reactions the combination of all the _________________ through which an organism ________ or ___________ materials as it carries out its life processes = ___________________ builds up breaks down metabolism

  22. ALL LIVING THINGSRespond to their environment A signal to which an organism responds = ___________________ STIMULUS  Image from: http://www.travel-net.com/~andrews/images/animations/traffic.gif

  23. ALL LIVING THINGSRespond to their environment  Image from: http://www.ccs.k12.in.us/chsBS/kons/kons/images/stimresp.jpg A stimulus can be _________________ EXTERNAL Ex: When there is enough water and ground is warm enough, seed germinates. Roots respond to gravity & grow downward.Leaves respond to sunlight & grow up. http://www.nofretete-page.de/gemischtNeu/TN_plant_grow_w.JPG

  24. ALL LIVING THINGSRespond to their environment http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM2.html A stimulus can be ____________ INTERNAL Ex: When the glucose level in your bloodstream becomes low, your body responds by making you feel hungry. http://www.israellycool.com/eat%20guy%20AFP.jpg

  25. VOCAB WORD A cell works to keep conditions inside the cell constant = ______________________ IF temperature, water content, nutrients, acidity change too much . . . the cell will die. HOMEOSTASIS

  26. FEEDBACK HOMEOSTASIS involvesinternal __________ mechanisms If body temp drops too low, “shivering” produces heat to warm you up. If temp is too hot, “sweating” cools you down. http://www.dreamstime.com/thumb_4/1099235658Q3A4x8.jpg http://www.clipartheaven.com/clipart/seasons_&_weather/overheating_2.gif

  27. HOMEOSTASIS Drinking a BIG GULP increases the amount of water in your body http://www.me-go.net/rtw/images/biggulp.jpg Your next stop gets rid of the excess water. (OSMOREGULATION) http://pluck.typepad.com/photos/uncategorized/restroom_blog.gif

  28. ALL LIVING THINGSas a group, change over time EVOLUTION = ______________ Allows _______ of ________ in a ___________ survival species changing world http://cache.eb.com/eb/image?id=63386&rendTypeId=4

  29. http://brookings.k12.sd.us/biology/intro.htm#WORKSHEETS/HANDOUTShttp://brookings.k12.sd.us/biology/intro.htm#WORKSHEETS/HANDOUTS

More Related