b1 Flashcards
what does prokaryotic mean
single celled organisms with no nucleus
what does eukaryotic mean
an organism consisting of cells with genetic material in dna form
what is differentiation
cells change to become specialised
types of specialised cells
sperm nerve muscle
what are chromosomes
coiled up dna
mitosis
body cells divide to prosper new cells
stem cells?
undifferentiated cells meaning can divide into more
diffusion
spreading of particles from area of high to low conc
osmosis?
movement of water across a partially permeable membrane from a region of high to low concentration
active transport
low to high
what is osmosis
special case of diffusion
what is diffusion
diffusion is the spreading of particles from an area of high concentration to low
what is the definition of osmosis
movement of water molecules across a partially permeable membrane from a region of high concentration to low
whats a prokaryote
single celled organism with no nucleus
what are all living things made up of
cells
whats a eukaryote
a organism consisting of cells with genetic material in DNA form
what type of cells are eukaryotic
plant and animal
magnification
image size divide real size
what is differentiation
process when cells change to become specialised
what are chromosomes
coiled up DNA
what do chromosomes contain
genetic info
types of specialised cells
sperm
nerve
muscle
what is mitosis
body cells divide to produce new cells
What are stem cells
undifferentiated cells
what is active transport
low to high
