Wednesday, January 29, 2014

DNA Extraction at Home

Just in case you wanted to replicate our experiment at school here is a link!

http://learn.genetics.utah.edu/content/labs/extraction/howto/

Wednesday, January 22, 2014

Cancer Mini-Research Project

Today you will be taking a closer look at cancer.

You will be responsible for turning in your own work at the end of the day.

Helpful links:

http://www.cancer.org 
(for general as well as specific information on various cancers)

(A great introduction to HeLa cells)

Sunday, December 8, 2013

Cell Micro Study Guide

C - Level

1.
2. Eukaryote - plant or animal cell; Prokaryote - bacteria
3. Diffusion is the movement of molecules from a high concentration to a low concentration until both are equal.

B - Level
1. Prokaryote - no nucleus, no organelles, smaller, circular DNA; Eukaryote - nucleus, contains organelles, big
2. Animal cell - contains lysosome, cell membrane only, small vacuole if any, mitochondria only - uses food for energy; Plant cell - contains large vacuole, contains chloroplast (uses sunlight for energy) and contains both cell wall and cell membrane
3. See notes on organelles.
4. Osmosis is the diffusion of water through a membrane
5. No energy - osmosis, diffusion, facilitated diffusion; Energy needed - endocytosis, exocytosis, active transport

A - Level
1. See above
2. See notes.
3. Review cell metaphor
4. See #2 in BLevel
5. Discuss osmosis, diffusion, endocytosis, exocytosis
6. proteins allow large molecules to pass through membranes or allow membranes to move against the gradient (low concentration to high)

Good to know
1. lipids and proteins
2. proteins
3. bacteria, plant
4. lysosome
5. cell wall, chloroplast
6. ribosome
7. shrink
8. plant and bacteria
9. lysosome
10. both are involved in generating energy for the organism. Chloroplasts generate energy from sun, water and carbon dioxide. Mitochondria generate energy from food.

Wednesday, October 30, 2013

Ecology Study Guide 2

This study guide is due FRIDAY (November 1).


  1. Mutualism - Both organisms benefit from the relationship.
  2. Commensalism - One organism benefits and the other does not benefit and is not harmed.
  3. Parasitism - One organism benefits while the other is harmed.
  4. Whale and Barnacle; Eyelash Mite and Humans; Sea Cucumber and Fish
  5. Birth Rate, Death Rate, Emigration, Immigration
  6. Katrina moved from San Diego to San Jose. She emigrated from San Diego. She immigrated to San Jose.
  7. The squirrel would eat more producers. Competition among the species would increase.
  8. Water, Carbon, Nitrogen, Phosphorus
  9. Bacteria
  10. Urine and Decomposition
  11. Animals and Plants that lived millions of years ago.
  12. solar, wind, water
  13. coal, oil, natural gas
  14. Due to technology, we are able to create more food (resources) than ever before. This allows us to support more living things.
  15. Agriculture, building cities, transportation, industries
  16. Often time it's inconvenient and costly
  17. Global warming occurs when the atmosphere thickens due to increased carbon emissions (from transportation and industry) This thicker atmosphere traps the heat from the sun and causes the earth to heat up.
  18. Primary succession begins on bare rock

Thursday, September 26, 2013

Ecology (Test 1) Study Guide Answers


  1. Individual - one organism; Population - a group of the same organism; Community - all living (biotic) factors in an area; Ecosystem - all the living and nonliving (abiotic) factors in an area; Biome - similar ecosystems (example: desert, tundra, rainforest); Biosphere - where all life exists on earth.
  2. (we'll go over this in class)
  3. (we'll go over this in class)
  4. population, abiotic factors, ecosystem, biosphere, biotic factors
  5. A food web shows ALL of the feeding relationships within an ecosystem. A food chain only shows a partial (linear) pathway of energy.
Predator Prey Relationship
  1. Increasing
  2. Increasing
  3. As the moose population increased, there was more food available for the wolves which in turn resulted in the increase of the wolf population.