Varitey of living organisms Flashcards
What are the 5 kingdoms?
Bacteria Protoctists Fungi Plants Animals
What characteristics do all living organisms share?
Movement Respiration Sensitivity Control Growth Reproduction Excretion Nutrition
Give some examples of plants
- Herbaceous legumes (peas and beans)
- Cereals (maize)
What are characteristics of animals?
- Multicellular
- Do not contain chlorphyll
- Unable to carry out photosynthesis
- No cell wall
- Have a coordination nervous system
- Often store carbohydrates as glycogen
Give some examples of animals
House fly, mosquito and humans.
What are the characteristics of fungi?
- Single celled
- Body organised into a mycelium
- Not able to photosynthesis
- Cell wall made of chitin
- Saprotrophic nutrition
- May store carbohydrates as glycogen
What is saprotrophic nutrition?
A type of feeding where digestive enzymes are secreted outside the cells. The digested products are reabsorbed into the fungi.
Give examples of fungi
Mycelium of mucor and yeast
What is mycelium?
A large tangled mass of threads
What is yeast?
A unicellular fungi used in the food and drink industry. They do no reproduce by spores like other fungi but do by budding.
What are characteristics of bacteria?
- Microscopic single celled organisms
- Simple cell structure with no nucleus but a single circular chromosome of DNA
- Most feed on either dead or living organisms
- Some can carry out photosynthesis
- Some have flagellum which allows them swim
What do plasmid often carry?
A gene that is resistant to antibodies eg MRSA
Give examples of some bacteria
Lactabacillus bulgaricus and pvneumococeus
Pnemococcus
Spherical bacteria that are the cause of pneumonia
What are characteristics of protoctists?
- Microscopic single celled organisms
- Some are animal like, some are plant like
