1496877
Description
Flashcards by Millie Berrett, updated more than 1 year ago
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Created by Millie Berrett
about 11 years ago
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| Question | Answer |
| 7 Characteristics of living organisms? (MRS GREN) | Movement Respiration Sensitivity Growth Reproduction Excretion Nutrition |
| Define Movement | Movement is an action by an organism or part of an organism causing a change of position or place. |
| Define Respiration | Respiration is the chemical reactions that break down nutrient molecules in living cells to release energy. |
| Define Sensitivity | Sensitivity is the ability to detect changes in the environment and react to them. |
| Define Growth | Growth is the process by which an organism changes in size and in form. Growth is a permanent increase. |
| Define Reproduction | Reproduction is the process that make more of the same kind of organism,Reproduction makes new organisms of the same species as the parents |
| Define Excretion | Excretion is the removal of toxic materials,waste products of metabolism and substances in excess from organisms. |
| Define Nutrition | Nutrition is the taking in of nutrients which are organic molecules and mineral ions to provide raw materials or energy for growth, tissue repair and reproduction. |
| Hierarchy of classification (Kings Play Chess On Flat Green Squares) | Kingdom Phylum Class Order Family Genus Species |
| What is a Dichotomous key? |
Dichotomous keys can be branching or listed. They are simple yes or no questions
Image:
Dichotomous_key (image/jpg)
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| What is Bacteria | Bacteria are single celled organisms that have no true nucleus |
| Structure of bacteria |
Image:
Bacteria (image/jpg)
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| Importance of Bacteria | -Some are Pathogenic (cause disease) -Some are involved in nutrient cycles -Some are exploited by humans in food production and biotechnology |
| What are viruses? | Viruses do not show the typical features of living things. All viruses are parasites and therefore cause harm to their host. |
| typical virus structure |
Image:
virus (image/jpg)
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| Comparing bacteria and viruses |
Image:
comparing (image/jpg)
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| Importance of Fungi | -They are decomposers and play a vital role in the nutrient cycle -they can be a source of food (mushrooms) -Used in biotechnology- brewing industry |
| Fungus or Plant? |
Image:
fungus_pr_plant (image/jpg)
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| What is a vertebrate? | A vertebrate is and animal with a back bone. such as mammals, birds, reptiles, fish or amphibians |
| what is and invertebrate? | An invertebrate is an animal without a back bone. Such as Nematodes, Annelids, Molluscs, Arthropods, Crustaceans, Insects, Myriapods or Arachnids |
| Features of a Nematode | -long muscles for wriggling movements -Long, Thin body so not washed out of hosts intestine -Body covered in Mucus to resist attack from digestive juices |
| Features of an Annelid | -Has chaetae (bristles) to help movement - Single segmented -Long, cylindrical body covered with mucus |
| Features of Molluscs | -Shell to protect soft body from predators -Single foot-muscle with slimy covering to help movement |
| Arthropods | Arthropods include -Crustacea -Insects -Myriapods -Arachnids |
| Features of an Crustacea | -Jointed limbs to help with feeding -Gill under shell to allow uptake of oxygen -Thick, hardened shell for protection |
| Features of Myriapods | -Antennae -Many body segments so body is flexible -Hard exoskeleton Waterproof body covering - |
| Features of Insects | -Antennae -Three pairs of legs -Three segments (Head, Thorax, abdomen) -Two pairs of wings |
| Features of Arachnids | -Head and thorax combined into 1 segment -Four pairs of legs Powerful jaws |
| Features of Fish | -Scales covered in mucus to help streamlining for swimming -Fins for movement |
| Features of Amphibians | -moist skin -Four limbs |
| Features of Reptiles | -Dry, scaly skin -Tail -Has teeth or bony ridges to aid feeding |
| Features of Birds | -Wings -Scales on legs or feet -Beak -Feathers vital for flight and insulation |
| Features of Mammals | - Fur or hair covering the body -Teeth to allow for digestion of wide variety of food |
| Characteristics of Animal cell |
Image:
A_cell (image/jpg)
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| Characteristics of a plant cells |
Image:
A_P_cell (image/jpg)
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