1 intro Flashcards
what 5 things characterizes a living organism?
- high degree of complexity and organization
- extraction, transformation and systematic use of energy -> work
- interactions of individual components being dynamic and coordinated
- ability to sense and respond to change environment
- capacity for fairly precise self-replication while allowing enough change for evolution
why ai cant be a living organism
what are the 3 distinct domains of life
bacteria
archaea
eukarya
difference between bacteria, archaea and eukarya
bacteria and archaea are microorganisms
diff family in eukarya are more diverse and multicellular
what are living organisms made of
cells
how do simplest living organisms compared to larger ones?
simplest - unicellular - all functions performed by one cell
larger - multicellular, diff function for diff cell
what common structural features do bacteria archaea and eukarya share
- cytoplasm
- plasma membrane
- ribosomes
- nucleoid/nucleus (bac/animal)
- nuclear membrane (animal)
- membrane bound organelles (animal)
what 3 features do some bacteria cell have some dont
cell wall, pili (protein), flagella
what is nucleoid and ribosome made of?
nucleoid - dna and protein
ribosome - rna and protein
what sub categories can eukaryotic cells be splint into
animals and plant
whats the effect of no cell wall?
more fluid
what are supramolecular complexes, macromolecules, monomeric units?
what is the major consituents of cells
macromolecules like proteins, nucleic acids, polysaccharides
What are proteins, nucleic acids, polysaccharides polymer of?
proteins = aa
nucleic acid/dna/rna = nucleotides
polysaccharides = simple sugars
what is the largest fraction of a cell (besides water)?
proteins
which is the most versatile biomolecule?
protein
