the cell Flashcards
(24 cards)
what was shleidens theory
all plants are made of cells
what was Theodore Schwann‘s theory
All animals are made of cells
what was rudolf virchows theory
all cells come from pre-existing cells
what happens as microscope‘s get better
more knowledge is gathered
what did Robert Hooke do
he viewed cork under microscope, he called the chamber as he saw cells
what did anton van leeuwenhoek do
he was the first to see living organisms in a drop of water
what are the three parts to the cell theory
all organisms are made of cells, all existing cells are produced by other living cells, and the cell is the most basic unit of life
what is the definition of unicellular
Single celled organism
what is the definition of multicellular
many celled organisms
what is cells specialization
The idea that every cell is specialized to perform a certain function
what is the cellular structure organization
cells > tissues>organs>organ systems> organism
what are the five characteristics that all cells have
cells tend to be microscopic, all cells have a cell membrane, all cells have cytoplasm, all cells have ribosomes and make proteins, and all cells have DNA
what is a eukaryotic cell
cells that have a nucleus and membrane bound organelles
what is a prokaryotic cell
(pro means no)
cells that do not have membrane-bound organelle‘s and do not have a nucleus
binary fission
what are the functions of the cytoskeleton
it supports the cells, it helps position and transport organelles, it provides strength, and assist in cell division, and aids in cell movement
what are cillia
tiny hairs
what are flagella
whip/tail
what occurs in the rough endoplasmic reticulum
ribosomes cover the organelle, proteins are created (protein synthesis) a
what occurs in the smooth endoplasmic reticulum
lipids are created
what is the function of ribosomes
they link amino acids to form proteins
What are vesicles
membrane-bound sacks that hold materials (like vehicles)
what is the Golgi apparatus
it packages macromolecules for transport elsewhere in the cell (flat stack of pancakes)
what does the mitochondria do
supplies energy to the cell through cellular respiration
what do vacuoles do
they are fluid filled sacs that hold materials
plants have one central