characteristics of life Flashcards
what is life
common features that differentiate living and non living organisms
metabolism
the sum of all chemical reactions taking place in an organism
continuity of life
the ability of living organisms to exist from one generation to the next
what is catabolism
when a larger molecules break down into smaller molecules
what is anabolism
when smaller molecules join together to form larger molecules
what is an example of anabolism in plants and animals
photosynthesis
proteinsynthesis
what is an example of catabolism in plants and animals
respiration and digestion
what is organisation
all organisms are made of cells, tissues, systems, organs
what is nutrition
the obtaining or making of food in and by living organism
what are autotrophs
organisms that make their own food like plants
what are heterotrophs
organisms that cants make their own food like humans
what is excretion
the removal of waste products of metabolism
what are the three main organs of excretion
kidneys lungs and skin
what is egestion
removal of unabsorbed waste from the body
what is response
reaction of a living organism to stimuli
