The Nature and Variety of living organims Flashcards
(25 cards)
Function of all living organisms
MRS C GREN
Movement: can change position
Reproduction: have offspring asexually or sexually
Sensitivity: detect stimuli
Control: homeostatic
Growth
Respiration: produce energy aerobically or anaerobically
Excretion: remove toxic or waste
Nutrition
Function of the nucleus
- Contain genetic material
- Codes for a particular protein
Function of the cytoplasm
- Liquid substance where chemical reaction occurs
- Contain enzymes
Function of cell membrane
- Contain receptor molecules to identify and control what comes in and leaves the cell
Function of the mitochondria
- Where aerobic respiration reactions occur
Function of the ribosomes
- Where protein synthesis occurs
Are plants Multicellular or single cellular
Multicellular
What substance makes the cell wall strong
Cellulose
What do plants store carbohydrates as?
Starch or sucrose
Are animal cells single cellular or multicellular?
Multicellular
What do animals store carbohydrates as?
Glycogen
Are fungi multicellular or single cellular?
Single celled
What are the cell walls of fungi made of ?
Chitin
What do fungi store carbohydrates as?
Glycogen
Are protoctists single celled or multicellular?
Single-celled
What don’t prokaryotes have?
They do not have a nucleus or membrane
What do bacteria’s have
Cell wall, cell membrane, cytoplasm, plasmid and circular chromosomes of DNA
What are pathogens?
Disease- causing organism and can be fungi, bacteria, protoctists or viruses
Name a virus
- Tobacco mosaic virus
- Influenza virus
- HIV (leads to AIDS)
Name a bacteria
- Salmonella
How do virus reproduce
Only reproduce within living cells
How do bacteria’s reproduce
Binary fission
Name a protists
Malaria
Name a fungi
Athlete’s foot