Life Functions
Scientific Method, Graphing, and Microscope
Biochemistry
Cells/Metabolic Processes (CR + Photo)
Ecology and Human Impact
100
A term that describes organisms that make their own food.
Autotrophs
100
What is the format of how to write a hypothesis?
If....then...
100
What are the monomers of proteins?
Amino acids
100
What organic compound is involved in photosynthesis and cellular respiration?
Glucose
100
Define the term niche.
An organism's role in an ecosystem.
200
What are the 6 characteristics of living things?
Grow and develop
Respond to stimuli
Able to reproduce
made of Cells
use Energy
contain DNA
200
What is the difference between an independent variable and dependent variable?
Independent Variable = I control
Dependent Variable = Depends on the Independent Variable
200
What are the 4 major macromolecules
1. Lipids
2. Proteins
3. Nucleic Acids
4. Carbohydrates
200
Describe the function of ribosomes in a cell.
Protein synthesis (production)
200
What is biodiversity?
Variety of life on Earth.
300
What are the 10 life functions (hint: think Mr. Stranger)
Metabolism
Respiration
Synthesis
Transport
Regulation
Ambulation (movement)
Nutrition
Growth and Development
Excretion
Reproduction
300
How many variables should be tested in an experiment? (think: how many should be changed?)
1 variable
300
What is the function of a lipid? A carbohydrate?
Long-term energy storage vs. short-term energy
300
What is the difference between active transport and diffusion? Describe in terms of energy and concentration gradients.
Active transport is low to high concentrations and requires ATP (energy)
Diffusion is high to low concentrations and does not require ATP (energy).
300
Identify an event that could disrupt a stable ecosystem.
Identify the process that would occur over time in that area following a disrupted event.
Ex. Wild fire
Ecological succession
400
Define metabolism.
All of the chemical reactions that occur in an organism.
400
What is a control group?
A group of subjects in an experiment that do not receive the variable being tested.
400
Name 3 factors that affect enzyme activity.
1. pH
2. Temperature
3. Concentration of substrate
400
What type of cells in the human body would contain a large surplus of mitochondria and why?
Muscle cells aid in carrying out cellular respiration to make ATP. ATP is in high demand to help these cells carry out their necessary functions/metabolic processes.
400
Which level of an energy pyramid has the most energy? What type of organisms are found here?
The first level and producers (e.g., plants)
500
How are unicellular and multicellular organisms able to maintain homeostasis and carry out necessary life functions (think what do they each contain?)
Unicellular have organelles that help carry out life functions
Multicellular organisms have specialized cells to help carry out life functions.
500
What variables are on the y and x axes? What do you have to do when graphing?
DRY MIX
Y axis = Dependent
X axis = Independent
You need a consistent scale that maximizes the space of the graph. A title is also needed. For a line graph points are to be plotted, circled, and connected when directed.
500
Draw the structure of a monosaccharide.
A hexagon.
500
Explain why only certain molecules can pass through the plasma membrane. Name an example of a molecule that can pass through and one that cannot.
Semi-permeable
Can pass: Small, nonpolar molecules (e.g., glucose/monosaccharides)
Cannot pass: Large, polar molecules (e.g., polysaccharides/starch)
500
Name an example of how humans are attempting to reduce their carbon footprint on Earth.
Driving electric cars, carpooling, recycling, etc.