B1 T1 0.0 / 5 ? BiologyAll of B1 T1 keywordsGCSEEdexcel Created by: glellis30Created on: 28-04-16 17:51 Oviparous Animals that lay eggs , the embryo does not develop within the mother's body. 1 of 38 Poikilotherms Animals that cannot regulate their body temperature. 2 of 38 Homeotherms Animals that regulate their body temperature. 3 of 38 Fungi Organisms which can break down complex organic substances (some are pathogens and harm the body). 4 of 38 Heterotrophically Organisms find food from their enviroment. 5 of 38 Autotrophically Organisms make their own food. e.g. plants do photosynthesis. 6 of 38 Saprophytically Feeding from dead organic matter. 7 of 38 Chordata A Phylum of animals that possess a rod supporting the body. 8 of 38 Species A group of individuals able to mate and reproduce offspring. 9 of 38 Family A group consisting several genera. 10 of 38 Hybrids The offspring of parents which are not the same species. 11 of 38 Binomial System The method of giving am organism a 2-part name consisting of genus and species. 12 of 38 Biodiversity The range of different living organisms in a habitat. 13 of 38 Variation The difference in characteristics between species and the range of a characteristics individuals of the same species. 14 of 38 Continuous Variation A characteristic that varies continuously shows a spread of values between extreme values of the characteristic. 15 of 38 Discontinuous Variation A characteristic that only has a limited number of values. 16 of 38 Ring Species A connected geographical sequence of neighbouring species that can interbreed together. 17 of 38 Hydrothermal Vents Cracks in the seabed where water is heated as a result of volcanic activity. 18 of 38 Evolution The process whereby organisms change through time. 19 of 38 Acquired Characteristics Non-hereditary or environmental changes in an organisms. 20 of 38 Mutation A permanent change in the structure of a gene - the DNA within cells is altered. 21 of 38 Genes A section of DNA that codes for a particular characteristic, by controlling the production of a particular protein or part of a protein by cells. 22 of 38 Chromosomes Thread - like structures in the cell's nucleus that carry genetic information - each chromosome consists of DNA wound round a core of protein. 23 of 38 DNA A molecule found in all body cells in the nucleus; its sequence determines how our bodies are made and each have a unique genetic code. 24 of 38 Locus The position of an allele on it's chromosome. 25 of 38 Homozygous Refers to the pair of alleles of a gene where the alleles are the same. 26 of 38 Heterozygous Refers to the pair of alleles of a gene where the alleles are different. 27 of 38 Dominant Refers to an allele which controls the development of a characteristic, even if it is present on only one of the chromosomes of a pair of chromosomes. 28 of 38 Recessive Refers to an allele which controls the development of a characteristics only if its dominant partner allele is not present. 29 of 38 Phenotype All of the characteristics of an organism. 30 of 38 Genotype All genes of an organism. 31 of 38 Monohybrid Refers to the inheritance of a single characteristic. 32 of 38 Gametes The male and female sex cells (sex cells). 33 of 38 Genetic Disorders An inherited disease that arises as the result of a mutated gene, passed on from the parents to the children. 34 of 38 Cystic Fibrosis A recessive genetic disorder in which thick sticky mucus is produced, affecting the lungs and digestive tract in particular. 35 of 38 Sickle Cell Diease A recessive genetic disorder in which the shape of haemoglobin in which the shape haemoglobin molecules are altered, so they absorb less oxygen. 36 of 38 Haemoglobin The chemical found in red blood cells which carried oxygen. 37 of 38 Sickle Cell Crisis The periods of pain experienced when sickle red blood cells clump together, restricting blood flow to the organs of the body. 38 of 38
Comments
No comments have yet been made