Cell Theory/Levels of Organization
This is the basic unit of life and the smallest part of any living thing.
Cell
This is the body’s ability to keep its internal environment stable or "balanced" even when the outside changes.
Homeostasis
This organelle is the "Control Center" or "Brain" that contains the cell's DNA.
Nucleus
This type of cell can be a bacteria or achaebacteria, and has no nucleus or membrane bound organelles
prokaryotic
In an experiment, this is the one factor that the scientist chooses to change on purpose (like the type of liquid used for the gummy bear).
Independent
According to Cell Theory, all new cells must come from these.
Pre-existing cells
This is the process where mitochondria use oxygen to break down sugar (glucose) into usable energy.
Cellular Respiration
Makes protein
Ribosome
This type of cell has chloroplasts and a cell wall. It also has a large central vacuole
plant cell
This is a well-tested explanation for why something happens in nature
Theory
This level of organization is made of a group of similar cells working together to do a specific job, like muscle or tree bark.
tissue
The name of the molecule produced by the mitochondria during cellular respiration
ATP
The function of this organelle is to do cellular respiration and produce energy for the cell
Mitochondria
Something an animal cell does not need due to it's ability to hunt or find food.
Chloroplasts
When a scientist repeats an experiment multiple times to make sure their results weren't just a "fluke" or an accident.
Replication
This level of organization consists of different tissues working together to perform a complex function, such as the heart or a leaf.
Organ
The movement of particles from areas of high concentration to low concentration. Requires no energy.
Passive Transport (Diffusion)
Jobs of the smooth and rough ER
Smooth - Transport lipids (fats)
Rough - Transport proteins
Something a plant cell does not need due to its ability to make its own food.
lysosome
In the 1600s, people thought "tiny invisible animals" didn't exist. Explain what technological tool changed this "fact" and how it led to the creation of the Cell Theory.
The Microscope; it allowed scientists to see cells for the first time, proving that all living things are made of smaller units.
How would you prove to someone, using a microscope, that something is living or non-living? Give 2 ways!
Must be made of cells (All living things are made of cells)
Cells can reproduce and maintain homeostasis/Life-functions.
The name of the active transport process that brings large particles such as food into the cell.
Explain what semi-permeable means and why it is important for the cell membrane to be semi-permeable.
Semi-permeable: Only certain substances are able to pass through
The cell membrane must be semi-permeable to maintain homeostasis (rid of wastes, prevent disease, bring in food/ balance water and oxygen, etc)
Name at least 3 things that prokaryotes and eukaryotes have in common
While they are very different, both types of cells still share these four things: a Cell Membrane, Cytoplasm, Ribosomes, and this genetic material. (DNA)
Explain why a Scientific Theory (like Cell Theory) is never "finished" and how it is different from a regular "hunch" or guess.
A theory is based on a huge amount of evidence, but it can be changed or updated if new technology (like better microscopes) reveals new facts.