Biology Review Notes: Key Concepts and Themes - Prof. Mary V. Lipscomb, Study notes of Biology

study guide Material Type: Notes; Professor: Lipscomb; Class: General Biology; Subject: Biological Sciences; University: Virginia Polytechnic Institute And State University; Term: Fall 2010;

Typology: Study notes

Pre 2010

Uploaded on 12/13/2010

gotribecc
gotribecc 🇺🇸

1 document

1 / 2

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Bio Review
(write down iclicker questions)
4 major themes of bio
- Characteristics of life
- Diversity of organisms
- Scientific Method
- Evolution
Evolution
- Evolution arises as a consequence of:
oGenetic Variation
oInheritance of variation by offspring
oNatural selection
oCHANGE/TIME
Characteristics of living things
- Complex organized structure
- Respond to stimuli
- Homeostasis
- Acquire and use energy
- Growth
- Reproduction
- Capacity to evolve
oAre viruses living things? NO!
Scientific Theory
- General explanation of important phenomena.
- Formed from repeated observations and experiments that support it.
- May be modified if new evidence emerges.
- Cell Theory; Theory of Evolution
oAll cells come pre exisiting cells
Chemical Bonds
- Attractive forces that hold atoms together.
- Sharing, losing, or gaining electrons,
Types
- Ionic
- Non-polar Covalent
pf2

Partial preview of the text

Download Biology Review Notes: Key Concepts and Themes - Prof. Mary V. Lipscomb and more Study notes Biology in PDF only on Docsity!

Bio Review (write down iclicker questions) 4 major themes of bio

  • Characteristics of life
  • Diversity of organisms
  • Scientific Method
  • Evolution Evolution
  • Evolution arises as a consequence of: o Genetic Variation o Inheritance of variation by offspring o Natural selection o CHANGE/TIME Characteristics of living things
  • Complex organized structure
  • Respond to stimuli
  • Homeostasis
  • Acquire and use energy
  • Growth
  • Reproduction
  • Capacity to evolve o Are viruses living things? NO! Scientific Theory
  • General explanation of important phenomena.
  • Formed from repeated observations and experiments that support it.
  • May be modified if new evidence emerges.
  • Cell Theory; Theory of Evolution o All cells come pre exisiting cells Chemical Bonds
  • Attractive forces that hold atoms together.
  • Sharing, losing, or gaining electrons, Types
  • Ionic
  • Non-polar Covalent

Oxygen is greedy to hydrogen bonds Water has unique properties essential for life.

  • Good solvent
  • Moderates the effect of temperature changes
  • Evaporate cooling
  • Cohesion
  • Surface tension Why is ice an unusual solid? It floats in water, crystal lic At what temperature is water most dekjnse? 4 degrees celcius Carbon Bonding
  • Carbon can form up to four bonds.
  • Very strong bonds
  • Different functional groups can bond to Carbon skeletons Allows for a huge range of molecules Difficult to break carbon bonds Carbohydrates
  • Monomer= monosaccharide (fructose)
  • Polymer= polysaccharide ( starch & glycogen)
  • Energy Source- glucose
  • Structural unit- cellulose and chitin Lipids
  • Energy source, insulation, and protection
  • Understand difference between Saturated and Unsaturated
  • Why are Phospholipids so important?
  • Steroids- help with the structure of cell membranes Proteins
  • Monomer= amino acid Nucleotides and Nucleic Acids
  • Stores information
  • Protein synthesis
  • Energy carriers Hydrogen