Variety of living organisms Flashcards
Common features in plants
Multicellular? Chloroplasts? Cell walls? etc.
Features of plants
- multicellular
- have chloroplasts, so can photosynthesise
- have cell walls, made of cellulose
- store carbohydrates as sucrose or starch
Examples of plants
cereals (eg maize)
Multicellular? Chloroplasts? Cell walls? etc.
Features of animals
- multicellular
- no chloroplasts, so cant photosynthesise
- no cell walls
- have nervous coordination - they can respond to changes in their environment
- store carbohydrates as glycogen
Examples of animals
mammals, insects
Features of fungi
- some are single celled
- others have a body called a mycelium, made up of hyphae (thread like structures which contain nuclei)
- cant photosynthesise
- cell walls made of chitin
- feed by saprotrophic nutrition
- store carbohydrates as glycogen
saprotrophic nutrition - secrete enzymes outside their bodies to dissolve the foods, so can absorb the nutrients
Examples of fungi
yeast (single celled fungus), mucor (multicellular has a mycelium hyphae)
Features of protoctists
- single celled (microscopic)
- some have chloroplasts
- some are similar to plant cells, others animal cells
Examples of protoctists
chlorella (plant cell like), amoeba (animal cell like)
Features of bacteria
- single celled (microscopic)
- no nucleus
- circular chromosome of DNA
- some can photosynthesise
- feed off other organisms (living and dead)
Examples of bacteria
lactobacillus bulgaricus (rod shaped), pneumococcus (spherical shaped)
Features of viruses
- particles, not cells (smaller than bacteria)
- can only reproduce inside living cells (parasite)
- infect all types of living organisms
- different shapes and sizes
- no cellular structure - have a protein coat around genetic material (DNA or RNA)
Examples of viruses
influenza virus, HIV, tobacco mosiac virus