Cell Structure Flashcards
function of the cell membrane
controls what goes in and out of the cell
functions of the cytoplasm
its where metabolic reactions tak place
it contains energy store, glycogen in animals and starch in plants
function of the nucleus
Controls the cells activity
Where can Ribosomes be found and what is its function
Ribosomes can be found freely in the cytoplasm or on the ER endoplasmic reticulem only on the rough part and not on the smooth part
ribosomes are responsible for Protein synthesis
functions of the ER
Transports substances
packages proteins
Function of the mitrochondria
the releasing of energy for the cell by respiration
why is the inner membrane in the mitrochondria folded
to privide a larger surface area to increase the rate of respiration to release more energy
what is the function of the vacuole
it exerts turgor pressure on the cytoplasm to make it firm
function of chloroplasts
absorb energy from light
photosenthysis happens inside them
describe the cell wall(state its feautures)
made up of cellulose and supported by lignin
thicker than the cell membrane
fully permeable
function on the cell wall
prevents the cell from bursting because of the pressure from the vacuole
what is the function of the ciliated epithelial cells
continueus beating of cilia backward and forward will waft the mucus which traps dust and bacteria wthat enter during breathing away from out lungs
describe Red blood cells(state its features)
no nuceus
incapable of diving or repairing them selves
they are made in the bone marrow every 120 days before they are destroyed in the liver
most numerous cell in blood
contains haemoglobin which carries oxygen
no mitrochondria
state the types of neurones in order
sensory
relay
motor
