variety of living organisms Flashcards
what does it mean if a cell is eukaryotic
has a nucleus
-has membrane bound organelles
what cells are eukaryotic
-animals
-plant
-fungi
-protoctist
what cell is prokaryotic
bacteria
what is a prokaryotic cell
-no nucleus
-no membrane bound organelles
what cells are multicellular
-animals
-plants
-fungi
what cells are unicellular
-protoctist
-bacteria
-fungi
what cells are both multi and uni cellular
fungi
what cell is acellular and what does that mean?
-virus
–acellular means they are just a particle so technically aren’t living
how does a protoctist feed
-some photosynthesise as some have chloroplasts
-via diffusion
how do fungi feed
through saprotrophic nutrition
how do bacteria feed
-some can photosynthesise (they may contain chlorophyll)
-most feed on living or dead organisms–> decomposers
how do viruses feed
they don’t
what cells reproduce asexually and which one does both sexual and asexual reproduction
-protoctists
-bacteria
-plant- does both
how do viruses reproduce
they reproduce inside living cells
what are some examples of fungi (uni and multi)
-uni: yeast
-multi: mushroom, Mucor
what are three examples of protoctists
-amoeba: animal like with no chloroplasts
-chlorella: algae, plant like and has chloroplasts
-plasmodium: causes malaria
what are examples of bacteria
-lactobacillus-makes yoghurt
-pneumococcus- causes pneumonia
what are examples of viruses
-influenza virus-causes the flu
-HIV virus- leads to AIDS
tobacco mosaic virus- stops tobacco plants producing chloroplasts
what is a pathogen
disease causing organism
which cells are pathogens
-virus-all
-some: fungi, protoctists, bacteria
how does saprotrophic nutrition work
-fungi release extra-cellular enzymes from the hyphae
-the enzymes break down the food/decomposing matter then absorb the nutrients
what is hyphae
thread like structures under the soil
what is a network of hype known as
mycelium
