KINGDOMS!
an organism made of only ONE cell.
What is unicellular?
This acronym stands for the 7 characteristics of life: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition.
What is MRS. GREN?
QUADRUPLE POINTS!!!
This is the basic structural and functional unit of all living things.
What is a cell?
A cell that has a membrane-bound nucleus is called this.
What is a eukaryote?
TRIPLE POINTS!!!
The flexible outer boundary found in EVERY cell that controls what enters and exits.
What is the cell membrane?
DOUBLE POINTS!!!
an organism that breaks down dead matter and recycles nutrients back into the environment.
What is a decomposer?
Any individual living thing — from a single bacterium to a blue whale — is called this.
What is an organism?
DOUBLE POINTS!!!
The three-part scientific framework that states: all life is made of cells, the cell is the basic unit of life, and all cells come from pre-existing cells.
What is Cell Theory?
A cell with NO membrane-bound nucleus — where DNA floats freely in the cytoplasm — is called this.
What is a prokaryote?
DOUBLE POINTS!!!
A rigid outer layer found in plant cells — made of cellulose — that gives them their box-like shape.
What is the cell wall?
not able to make it's own food.
What is heterotroph?
Fire moves, uses energy, and even "spreads" — but it is NOT considered alive because it fails most of these 7 things.
What are the characteristics of life (MRS. GREN)?
This scientist coined the word "cell" in 1665 after observing thin slices of cork under a primitive microscope.
Who is Robert Hooke?
This organelle is found in ALL cells — both prokaryotes AND eukaryotes — and is responsible for making proteins.
What is the ribosome?
This storage organelle is large in plant cells (storing water and maintaining pressure) but small in animal cells.
What is the vacuole?
To be able to make its own food
What is autotroph?
This characteristic of life describes an organism's ability to detect and respond to changes in its environment, like a plant bending toward light.
What is sensitivity?
This part of Cell Theory — added by Rudolf Virchow — states that you cannot get a cell from nothing.
What is "all cells come from pre-existing cells"?
This organelle is often called the "powerhouse of the cell" because it releases energy from food through cellular respiration.
What is the mitochondria?
The three domains of life are these — two of which contain only prokaryotes, and one that contains all eukaryotes.
What are Bacteria, Archaea, and Eukarya?
to maintain a state of balance specifically within the human body.
What is homeostasis?
A Venus flytrap snapping shut, a bacterium swimming away from a toxic chemical, and your eyes adjusting to darkness are all examples of this single MRS. GREN characteristic.
What is sensitivity (responding to stimuli)?
This jelly-like fluid fills the inside of every cell and holds all organelles in place.
What is cytoplasm?
Found ONLY in plant cells and algae, this green organelle captures sunlight and uses it to make food through photosynthesis.
What is the chloroplast?
This tiny tail-like structure used for movement is found in some prokaryotes and gives bacteria the ability to propel themselves through liquid.
What is the flagellum?