THE ORGANISM
what are the levels of cell organisation?
cell-tissue-organ-organ system-organism
Which are the types of nutrients?
inorganic and organic
what is the principal function of the ribosomes?
produce proteins
where does the exchange of gases occur?
alveoli (respiratory system)
What is the part of the nucleus that when it coils upon itself forms chromosomes?
chromatin
which are the organic molecules found in living organisms?
carbohydrates, lipids, proteins and vitamins
what are the three types of muscle tissues?
striated,cardiac and smooth
what are the enzymes in the chemical digestion?
they're the molecules that speed up the chemical breakdown of complex molecules found in food into more soluble nutrient molecules.
what are the unspecialised cells called?
stem cells
what is the villi and where is found?
they're tiny finger-shaped projections which absorb nutrients in the small intestine