Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
|
all cells have...???
|
all cells have plasma, cytoplasm, gentic material (dna or rna), and ribosomes.
|
|
|
what is a virus?
|
protien and DNA or RNA. they are not cells. Antibiotics will not work on viruses cause they are not cells.
|
|
|
Robert Hooke
|
man in the 1600s who looked @ cork and made up the name cells.
|
|
|
Schleiden and Schwann
|
schleiden(botanist) and Schwann(zoologist) made up the cell theory.
|
|
|
What is the cell theory??
|
The cell is the basic unit of structure, the cell is the basic unit of function in all organisms, and all cells come from pre-existing cells.
|
|
|
cell wall
|
rigid outer covering on cells and bacteria.
|
|
|
surface area.(LxWx6)
|
when this trait of a cell becomes too small in realtion to its volume, the cell may die.
|
|
|
ribosomes
|
small bodies in the cell where proteins are assembled.
|
|
|
plasma membrane
|
outer layer of ALL cells. This controls what can leave and enter the cell.
|
|
|
endoplasmic reticulum (ER)
|
system of membranes and channels in the cytoplasm.
|
|
|
nucleus
|
contains the cell's DNA.
|
|
|
prokaryote
|
cell that lacks a nucleus.
|
|
|
eukaryote
|
cell that contains organelles and have a nucleus.
|
|
|
nucleur membrane
|
double membrane surrounding the cell's control center.
|
|
|
volume
|
the total of all the contents of a cell.
|
|
|
vesicles
|
tiny sacs that transport materials within the cell.
|
|
|
chloroplasts
|
green organelles where photosynthesis occurs in plants.
|
|
|
mitochondria
|
cell organelles where food is broken down to release its energy.
|
|
|
bacteria
|
typical prokaryotes.
|
|
|
organelle
|
means "tiny organ"
|
|
|
lysosomes
|
sacs in cells that contain digestive enzymes for digesting food.
|
|
|
cell
|
basic unit of life.
|
|
|
DNA
|
genetic material found inside the nucleus.
|
|
|
golgi apparatis
|
bodies where various cell products are packaged and distributed within the cell.
|
|
|
cilia
|
small hairlike structures that help propel the cell or draw food inside.
|
|
|
cytoplasm
|
liquid interior of a cell.
|
|
|
what are 3 structures found only in plant cells?
|
chloraplast, cell wall, central vacuole.
|
|
|
common name given to prokaryotes.
|
bacteria
|
|
|
nuclear envelope
|
seperates nucleus from cytoplasm.
|
