Monday, December 12, 2011

Biology Final Details

Final Details

2 parts, each part will count as a test grade.

Part 1 – Multiple Choice, 62 Questions


Part 2 – 5 Free Response Questions
1. Scientific Method (Design an Experiment)
• Just set it up!
• What will happen to one group, what will happen to another group
• What will you measure?
• What will you do the same?
• No Conclusion!
2. Cell Organelles (Label and Explain function)
• It will probably be a Plant Cell
3. Food Web Analysis
• Compare and Contrast two Food Webs
4. Photosynthesis and Cellular Respiration
• Who
• What
• Where
• Why
5. Cell Cycle & Mitosis (Ordering)

Answers to Study Guide (Part 1 - Yellow)

Scientific Method

1. 2 potential problems:
• no experiment was conducted, you cannot prove anything
• two classes may be different (different ages, different genes)
2. meter
3. mile, inch,
4. mile time – dependent variable (this is what you are measuring)
5. typing v. handwriting independent variable (this is what you are changing)
6. chances of getting sick – dependent variable
7.
a. hypothesis – ice cream without chocolate chips will melt slower
b. independent variable – chocolate chips
c. dependent variable – melt time
d. controls – same brand of ice cream, same amount of ice cream
8. Conversions
a. .0735 km
b. 68000 mg
c. 3.648 L

Ecology

1. In order to have a stable food web, it is important to have much more autotrophs than heterotrophs
2. Exponential growth
3. Carrying capacity – maximum amount of organisms that can live in an area without using up all the resources
4. Animals, humans, plant life
5. Weather, precipitation, rain fall, water, soil,
6. More mice would die because there would be more snakes eating, eventually, snake population would go down because there wouldn’t be enough food.
7. Pollution increases the thickness of the atmosphere → traps more of the suns heat → global warming


Cell Parts and Organelles

1. Prokaryotes – no nucleus, no organelles, small
Eukaryotes – has nucleus, has organelles, big
2. Animal Cell (see Notes)
3. Plant Cell (See Notes)
4. Lysosomes
5. Nucleus
6. Ribosomes
7. Mitochondria
8. Chloroplast

Cell Transport

1. Diffusion is the movement of molecules from a high concentration to a low concentration.
2. Salt water fish in hypotonic solution would cause the cell to swell (get bigger)
3. Cell membranes are mostly made up of lipids, with a few large proteins embedded in it to function like a gate
4. Diffusion that happens through a protein is called: facilitated diffusion

Answers to Study Guide (Part 2 - Pink)

Fall Final Study Guide Answers – Part 2 (Pink)

Biochemistry
Macromolecule Function Examples
Carbohydrates Energy Bread, rice, starch, sugars
Lipids Storage, protection, membranes Fats, oil, wax
Proteins Transport, structure, speed up chemical reactions Skin, hair, muscles, enzymes
Nucleic Acids Store genetic information DNA


Cellular Energy 1 – Photosynthesis

1. Photosynthesis, Light dependent reactions, calvin cycle
2. Carbon dioxide and water to create glucose and oxygen
3. Thylakoid membrane (or grana)
4. Glucose, stroma
5. False. (only plants)
6. Glucose
7. Grana

Cellular Energy 2 – Cellular Respiration

1. Cytoplasm (glycolysis) and Mitochondria (krebs cycle and electron transport chain)
2. Glycolysis, Krebs Cycle, Electron Transport Chain
3. Cytoplasm
4. Mitochondria
5. Oxygen
6. Carbon Dioxide
7. 36
8. plants and animals
9. to get ATP

Cellular Energy 3 – Fermentation

1. oxygen
2. alcoholic and lactic acid
3. yeast
4. humans, bacteria
5. cellular respiration (not fermentation) you get more ATP

Cell Cycle & Specifics of Mitosis and Cancer

1. cell membrane
2. dividing
3. Gap 1 and Gap 2
4. Gap 1 and Gap 2
5. Synthesis (S Phase)
6. Anaphase
7. Metaphase
8. Prophase
9. Abnormal DNA, inability to stop growing

Final Practice Questions

Monday, October 24, 2011

Biochemistry Study Guide Answers

1.
  • Carbohydrates / energy, plant structure / bread, rice, grain, pasta
  • Protein / transport, speed up reaction, structure / enzymes, hormones, skin, hair, muscles
  • Lipids / barrier, energy / oil, wax fat
  • Nucleic Acid / genetic information / DNA
2. monomer is one unit (example, monosaccharide), polymer is made up of many monomers put together.

3. product (the end product of a chemical reaction, what you make), reactants (starting molecules)

4. proteins

5. 75

6. 65

7. enzymes lower the activation energy. less energy is needed to for reaction to occur.

8. positive

9. active site changes shape, can no longer bind to the substrate

10. a. hydrogen peroxide
b. catalase (enzyme in living cells)
c. hydrogen peroxide
d. water, oxygen gas

Thursday, October 13, 2011

Global Warming Research

The following link is a great resource in regards to the effects of global warming.

Take me there!

Tuesday, October 11, 2011

Cell Size / Scale

This is the link I showed on Monday that displays the relative size of different things. Enjoy!

http://learn.genetics.utah.edu/content/begin/cells/scale/

Thursday, September 29, 2011

Ecology Study Guide Answers

  1. Benefit
  2. Benefit, Not harmed, does not benefit
  3. benefits, harmed
  4. ex. 1 - eyelash mites and humans, ex.2 - whale and barnacles, ex 3 - sea cucumber and pearlfish
  5. a. Birth b. Death c. Emigration d. Immigration
  6. emigrated, immigrated
  7. Other squirrels in the community would have more competition for food; Animals that prey on squirrels will grow in population because they have more food; Producers that are eaten by squirrels will decrease in number
  8. Phosphorous, Carbon, Water, Nitrogen
  9. Bacteria
  10. When organisms die and decompose; Urine
  11. Organisms that have died many years ago.
  12. Sun, Wind, Food, Water
  13. Coal, Oil, Natural Gas
  14. We started using coal and oil to produce more energy. More energy --> more food --> Increase in population
  15. Agriculture, Urban Development, Hunting and Gathering
  16. Rarely does being "green" pay off. Often times it comes at a personal cost. Human nature tends to only care about their own well being.
  17. Global warming occurs when the atmosphere is thickened by the carbon emissions released by human activity. The thickening of the atmosphere causes more of the sun's heat to be trapped which leads to increased global temperature.
  18. Primary succession - predictable changes in an ecosystem that starts from bare rock. Secondary succesion - predictable changes in an ecosystem that begins after the original community has been cleared. Starts with soil.

Friday, September 16, 2011

Bio Root Word Flashcards

Hi Class,

I recently discovered a new tool I'd like to share with you! Please click on this link and it'll take you to a website and you can use it to study your bio root words.

Enjoy!

Mrs. Sohn

Monday, September 12, 2011

Bio Root Word Quiz - Wednesday 9/14/11

Please tudy for the upcoming Bio Root Word Quiz

New Words:
hydro (related to water)
hyper (over, above, excessive)
hypo (under, below, deficient)
in (inside)
intra (within)

Wednesday, September 7, 2011

In Class Application

Using your notes and book, respond to these questions on the back of your notes.

  1. What is a cell? Why are cells important?
  2. Give 2 examples of living things growing and developing.
  3. What does it mean to respond to stimuli (or the environment)? Give an example of how an animal would repsond to its environment.
  4. What is homeostasis?