Biology 12 - mralai.weebly.com

Biology 12 - mralai.weebly.com

BIOLOGY 12 Biological Molecules CHEAT SHEET PREFIX/SUFFIX -ology = the study of Cyto-/cyte = cell Hydro-/hydrate = water Lyso- = split Lysis = break apart Pod/ped = foot Thermo = temperature Phobia/-phobic = fear/hating -phylic / -philia = loving

Poly = many Iso = same Soma - / -some = body Chrome=colour ATOMIC BONDING 1) 2) 3) Ionic Bonding Covalent Bonding

Polar Bonds/ Hydrogen Bonds/ H-Bonds IONIC BONDING A metal + non-metal Metal will give all e- in its outer shell to a non-metal so that both have a full shell COVALENT BONDING 2 non-metals will share electrons Both atoms share the electrons equally (nonpolar, hydrophobic)

I. II. Because the e- are shared equally by both atoms, the molecule is electrically neutral The shared electrons are attracted equally to both nuclei because they have the same charge

The electrons are not shared equally (polar, hydrophilic) POLAR BONDS/ HYDROGEN BONDS Bond between 2 polar molecules The positive end of one is attracted to the negative end of the other Ie: the bond that hold the water molecules

together OTHER NOTES Polar mixes with Polar Ie: Water + Sugar Non-Polar mixes w/ Non-Polar

Gasoline + oil Polar and Non-Polar do NOT mix Water and Oil ACID, BASES AND BUFFER

Polarity can cause some molecules to split apart or DISSOCIATE when mixed with water Ie: H2O -> H+ + OH- Note: [ ] Concentration Ie: [salt] = salt concentration

ACID, BASES AND BUFFER Acids- any compound that dissociates in water to release H+ ions Bases any compounds that dissociates in H2O to release OH- ions [OH]>[H+]

When [H-] and [OH-] are equal to each other, what is the solution called? BUFFER Compounds that pick up excess H+ or OH- to maintain a constant pH of a solution Essential to living things In humans, buffers help us maintain homeostasis

A common buffer that we have is HCO3- 2 MIN BREAK

Recently Viewed Presentations

  • CounterReformation

    CounterReformation

    The Counter Reformation The Defense of Tradition The Jesuits Artistic Reproductions Military Policies Failure of Church Reform Protestant Politics and Military Protestatio Smalkaldic Wars: Habsburg Hegemony Wars of Religion: French Real Politique Virgin of the Jesuits 1534 Established by Ignatius...
  • Spartans Seize the Day! 1/21

    Spartans Seize the Day! 1/21

    Spartans Seize the Day! 08/24. Welcome to World History!-Find the seat with the number that corresponds to your name-Fill in your student information sheet (inside the folder)
  • Marc L. Rothstein and Dianne M. Rothstein Prime

    Marc L. Rothstein and Dianne M. Rothstein Prime

    The attributes of CPG as a solid support include high specific surface area, dimensional stability in organic solvents, large and stable pore spaces and high rigidity. Most reaction schemes used to link nucleoside to the CPG surface, begin by coupling...
  • New Vocabulary Chapter 23  avgw I lead  ai-ma

    New Vocabulary Chapter 23 avgw I lead ai-ma

    New Vocabulary Chapter 23 avgw I lead ai-ma Blood e[kastoj Each, every i`ma,tion Garment, cloak o;roj Mountain, hill u`pa,gw I depart fobe,omai I fear cai,rw I rejoice New Vocabulary Chapter 23 avgw I lead ai-ma Blood e[kastoj Each, every i`ma,tion...
  • Understanding Obesity Stigma as a Stressor Across the lifecourse

    Understanding Obesity Stigma as a Stressor Across the lifecourse

    Chronic or frequent demands for these messengers can lead to insufficient, non-habituating, or prolonged production. Metabolic,inflammatory, and cardiovascular systems all become dysregulated. Stress causes the release of stress hormones. In the short-term, this reaction is adaptive.
  • HBS Winter Concert 2016 - Readington Township Public Schools

    HBS Winter Concert 2016 - Readington Township Public Schools

    Ryan Levinson . Dylan McPherson . Alec Nanda ... Zach Fisher . Ryan Hample . Noah . Mehtalista . PERCUSSION. Ryan Coury . Gabe DeCola . Julian DeCola . Katie Fazio . Conor Mikaelian . Tyler Rodriguez . Danny Schneider...
  • Open Invitation

    Open Invitation

    Replace high calorie foods with fruits or vegetables. ... Dates and their chemical constituents have been shown to have anti-oxidant, cardioprotective, anti-cancer, as well as immunomodulating activities. ... Pro-thrombotic State. As tumor angiogenesis proceeds, new capillaries invade and ...
  • CMOS VLSI Design Digital Design Digital Design CMOS

    CMOS VLSI Design Digital Design Digital Design CMOS

    Pseudo-nMOS In the old days, nMOS processes had no pMOS Instead, use pull-up transistor that is always ON In CMOS, use a pMOS that is always ON Ratio issue Make pMOS about ΒΌ effective strength of pulldown network Dynamic Logic...