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Living Things

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Cell
Is the basic unit of a structure & function in an organism.
organism
living things
Unicellular
single-celled organisms
Muiticellular
organisms are composed of many that are specialized to do certain tasks.
Stimulius
a change in an organisms surroundings that cuases the organism to react.
response
an action or change in behaivor.
development
is the process of change that occurs during an organisms life to produce a more complex organism
Spontaneous generation
The mistaken idea that livings can arise from nonliving sources
living things
all living things need water, food, living space, & stable internal conditions to live.
autotrophs
organisms make their own food.
heterotrophs
organisms that do not make their own food.
homeostasis
the maintenance of stable internal conditions
classification
is the process of grouping things based on their simularities.
taxonomy
the scientific study of how living things are classified
biologist do..
use classification to organize living things into groups so that the organisms are easier to study.
binomial nomenclature
is a naming system Linnaeus used.
Genus
a classification groups that contain similar, closley relate organisms.
species
is a grouping of similar organisms that can mate with each other & produce offspring that can also mate & produce.
classification system
Domain, Kingdom, phylum, class, order, family, genus, & species
Three domains of life...
Bacteria, Archaea, & Eukarya
In the Eukarya there is....
Protists, Fungi, Plants, & Animals
Prokaryotes
are organisms whose cells lack a nuecleus.
Nucleus
is a dense area in a cell that contains nucleic acids-the chemical instructions that direct the cell's activity. AKA- The Brain
Eukayotes
Orgainsms with cells that contain nuclei.
Protists
is any Eukayotes organism that can't be classified as an animal, plant, or fungus. They can be heterotophs or autotrophs.
Fungi
Most fungi is multicellular & ALL Fungi are heterotrophs.
Plants
multicellular & are autotrophs. They provide a ton of heterotrophs with food.
Animals
multicellular & are all heterotrophs.
Cells are..
the basic units of structure & function in living things.
Microscope did..
made it possible for people to discover & learn about cells.
Microscope
is an instrument that makes small objects look larger.
Robert Hooke
built the first compound microscope. in 1663 he used his microscope for the first time. He saw some the firt cells ever seen my a human eye.
Anton Van leeuwenhoek
He made the first simple microscope. he discovered the cells around the same time Robert Hooke did.
Matthias Schleiden
In 1838, he concluded that all plants are made up of cells.
Theordor Schwann
in 1834, he concluded all animals were made up of cells
Rudolf Virchow
In 1855, he concluded that cells are formed only from cells that already exist.
The Cell Theory Rule #1
All living things are composed of cells.
The Cell Theory rule #2
Cells are the basic units of structure & function in living things.
The Cell Theory rule #3
all cells are produced from other cells
Compound Microscope
Uses more than one lens.
Resolution Microscope
Has the abililty to clearly distinguish the indivdual parts of the object.
Electron Microscope
Uses a beam of electrons instead of of light to produce a magnified image.
Organelles
Carry out specific functions within the cell.
Cell Wall
Helps protect & support the cell.
Cell Membrane
Controls what substances come into & out of a cell.
Nucleus
The cells control center directing all of the cell's activities.
Nuclear Envelope
Protects the Nucleus
Chromatin
Contains genetic material, the instructions for directing the cell's function.
Nucleolus
Where ribosomes are made.
Cytoplasm
The region between the cell membrane & the nucleus.
Mitochondria
known ar the "powerhouse" of the cell because they convert energy in food molecules to energy the cell can use to carry out its functions.
Endoplasmic Reticulum
Passageways that carry proteins & other materials from one part of the cell to another.
Ribosomes
Function as factories to produce proteins.
Golgi Bodies
Receive Protein & packages them to distribute them to other parts of the cell.
chloroplasts
Captures Energy from the sunlight & uses it to produce food for the cells.
vacuoles
Are the storage areas of cells.
Lysosomes
Are small, round structures containing chemicals that break down certain materials in the cell.
why did the tomato invite the fungi to the party?
because he was a FUN-GUY!!!