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Created by Millie Berrett
almost 10 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
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Dichotomous_key (image/jpg)
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What is Bacteria | Bacteria are single celled organisms that have no true nucleus |
Structure of bacteria |
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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 |
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virus (image/jpg)
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Comparing bacteria and viruses |
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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? |
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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 |
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A_cell (image/jpg)
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Characteristics of a plant cells |
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A_P_cell (image/jpg)
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