Cells Flashcards
(41 cards)
Characteristics of Living Things
- made up of cells
- reproduce
- asexual: reproduce by itself
- sexual: reproduce with another organism - have DNA or RNA
- use energy (metabolism)
- grow and develop
- respond to environment (stimulus)
- maintain homeostasis
- evolve
Biotic
Living
Abiotic
Nonliving
Organic Molecules
molecules with a carbon chain/ring
Inorganic Molecules
found inside an organism
Cell Theory
- living things made up of cells
- cells come from other cells
- basic unit of life
Prokaryotes
no nucleus
Ex: Cyanobacteria
photosynthetic
Eukaryote
nucleus
complex
anaerobic bacteria
- doesn’t need oxygen
Nucleus
Holds DNA
in charge of cell processes
nucleolus
-makes ribosomes
nuclear membrane
membrane surrounding nucleus
chromatin
loose form of DNA and protein
- in a non dividing cell
vacuoles
storage filled with water, minerals, salts
contractile vacuole
pump to regulate amount of water in some single celled organism
vesicle
transportation/storage
lysosomes
enzymes break down proteins
cytoskeleton
supports cell structure
roadway for material to get around cell
microtubules
help cell division
ribosomes
make proteins from amino acids
free ribosomes
move around cytoplasm
bound ribosomes
stay on rough er
smooth endoplasmic reticulum
makes fat and carbohydrates
removes dangerous particles from blood
rough endoplasmic reticulum
divides cell into sections so each section does a certain task