Introduction
What is biology?
The study of life
What two elements make something organic?
Carbon and Hydrogen
What is the difference between abiotic and biotic factirs?
Abiotic (noliving) biotic (living
What does biodegradable mean?
Material can be naturally broken down
What are the two types of cells?
Plant and animal cells
What is the difference between an independent and dependent variable?
Independent is the "cause," dependent is the "effect"
What are all of the four macromolecules?
Proteins, lipids, carbohydrates, and nucleic acids
What is a pioneer species?
An organism that is the first to arrive in succession
What are examples of fossil fuels?
Gas, oil, coal
What are the two organelles that plants have that animal cells do not
Chloroplast and cell wall
Calculate the average of the following heart rates (75, 78, 80, 92, 88)
82.6
Draw and label the structure of an enzyme with the following vocabulary (enzyme, substrate, activation site)
Check with teacher
What is the difference between primary and secondary succession?
Primary succession has no soil and is conquered by pioneer species. Secondary succession is when you have soil and vegetation was destroyed through a natural disaster
What is a way that humans can reduce global warming?
Reduce use of fossil fuels, recycle, use electric cars, etc
What are 3 cell organelles AND their functions?
Answers will vary
Why do scientists perform experiments more than once? Explain how the amount of data can affect the results
more data leads to more valid conclusions, and it creates more validity to an experiment.
What is an enzyme? AND explain how both pH and temperature affect enzyme activity
An enzyme speeds up chemical reactions AND enzymes require a specific or "optimal" pH and temperature to work, or else they will be destroyed or "denature"
What will happen to a grass population if the number of hawks is reduced? (The food chain is grass, rabbits, hawks)
The amount of grass will decrease because if rabbits are not hunted, their population will increase, hence more demands for their grass
How does the rise of CO2 affect the ice caps?
More carbon dioxide causes temperatures to rise, thus causing the ice caps to melt
What is the difference between active and passive transport?
Active is low to high WITH energy (ATP), passive is high to low without energy
Identify the different parts of the given experiment: "The amount of milk consumed and strength of bones"
- Independent variable
- Dependent variable
- Control group
- 3 Controls
- Hypothesis
Check with teacher
Choose one of the four macromolecules (proteins, lipids, carbohydrates, nucleic acids) and explain how a lack of these nutrients can influence homeostasis
Answers may vary
Label a correctly labeled food pyramid. Draw the correct flow of energy
Answers may vary
Explain how thermal pollution affects the fish population in a lake (think of our lab!)
When excess heat from a factory pours into the lake, it causes the temperature of the lake to rise. This then depletes oxygen within the lake, thus causing the fish to suffocate and then die, reducing their population.
Explain the difference between isotonic and hypertonic and hypotonic solutions. Then, explain what it does to a red blood cell.
Hypertonic is too much solute on the outside of the cell, so water rushes out and RBCs SHRINK. Hypotonic is when solute is inside the cell, causing water to rush in and RBCs SWELL/BURST. Isotonic is a net amount of water and solute, and the RBC remains the same.