click below
click below
Normal Size Small Size show me how
Characteristics Life
Leaving Cert Biology
| Question | Answer |
|---|---|
| What is diversity? | A wide range of living things |
| What are the common features of living things | Organisation, Nutrition, Excretion, Response and Reproduction (ONE Roger Rabbit) |
| What do you call the sum of all the chemical reactions in living things | Metabolism |
| What type of reaction involves the breakdown of larger molecules to smaller ones and also releases energy | Catabolic reaction |
| What type of reaction involves smaller molecules being used to make larger ones and takes in energy | Anabolic reaction |
| What is defined as the possession of all the characteristics | Life |
| What term is used to describe how living organisms arise from living organisms of the same type | Continuity of life |
| What are all living things made of | Cells |
| Some organisms exist as one cell, what term is used to describe this | Unicellular |
| What characteristic of living things refers to the order in which cells are made up | Organisation |
| What is the order of levels of organisation of life | Cells, Tissue, Organ, System, Organism, Population |
| What term is used to describe the way in which organisms obtain and use food for energy | Nutrition |
| What do you call organisms that can make their own food | Autotrophs |
| What do you call organisms that cannot make their own food | Heterotrophs |
| What term is used to describe the removal of waste products | Excretion |
| Name two products of excretion | Carbon dioxide and urea |
| Why is it dangerous for waste products to accumulate in the body | It becomes toxic |
| What term is given to the process by which an organism maintains a constant internal environment | Homeostasis |
| What term is used to describe the formation of new individuals | Reproduction |
| What are the two methods or reproduction | Asexual and Sexual |
| What reproduction method involves the fusion of gametes | Sexual |
| What reproduction method involves cell division | Asexual |
| What characteristic of living things refers to the reaction of organisms to stimuli in their environmnet | Response |