“Copying someone else’s work in considered plagiarism and an honor code violation. The work
completed in this study guide is my own. ”
The Levels of Life Card Game
The Order of Part 1 & 2:
Ecosystem, Community, Population, Organism, Organ System, Organ,
Tissues, Cell, Molecule, and the Atom
Energy Flow and Chemical Cycling
The food we eat provides chemical energy for our bodies.
This energy is in the form of organic
molecules, particularly carbohydrates.
Originally these organic molecules were produced by plants
in the chemical reaction of photosynthesis.
They get the energy from light.
All organic molecules
Like all animals, we get carbon atoms from organic molecules in the food we eat,
and that carbon comes from plants.
Plants take in carbon dioxide gas from the air and in
photosynthesis they use the carbon atoms to build carbohydrates.
So the carbon we eat originally
came from the air.
To use the energy in food, cells carry out cellular respiration, which converts
organic molecules back into carbon dioxide gas.
The carbon dioxide is used again by plants to
make more organic molecules.
Heritable Information: DNA
DNA is a double helix that has two strands of nucleotides that are twisted together.
There are two
phosphate strands that are connected by the pair of bases that are hydrogen-bonded.
paired with cytosine and Adenine is paired with thymine.
Comparing Prokaryotic and Eukaryotic Cells
Blue colored eukaryotic cell.
Orange eukaryotic cell.
Orange, column-shaped, prokaryotic cell.
Archaea cells are prokaryotic.
The prokaryotic cell does not have a nucleus, bacteria
The animal cell does not have a cell wall, blue tinted eukaryotic cell
The prokaryotic cell doesn’t have organelles, bacteria
Regulation: Negative and Positive Feedback
Negative feedback occurs where a change in a physiological variable that is being monitored
triggers a response that counteracts the initial fluctuation.
Negative feedback regulates the
chemical reactions in a cell.
The negative feedback reduces the end result.
increases the end result.
When the scientists first organized the organisms, it was only plants or animals.
Years later there
was a five kingdom classification that was established.
There was one kingdom with prokaryotic
cells which was monera.
The other four kingdoms were prokaryotic.
They were called fungi,
protista, animals, and plants.
After that the system was changed to have a more general domain.
The domains for prokaryotes are Bacteria and Archaea.