2730671
Beschreibung
Karteikarten von Zainab Riaz, aktualisiert more than 1 year ago
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Erstellt von Zainab Riaz
vor mehr als 9 Jahre
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| Frage | Antworten |
| Healthy | Being free from diseases or infections |
| Fit | Measure of how well you can perform physical tasks |
| Pathogens | Micro-organisms that cause disease |
| Active Immunity | Immune system makes its own antibodies and is usually permanent |
| Passive Immunity | Using antibodies made by another organism and is often temporary |
| Benign Tumour | Grows until there is no more room and the cells stay where they are. Usually harmless |
| Malignant Tumour | Grows and can spread to other cells in the body. Often dangerous and fatal |
| Placebo | Sugar coated pill which looks like the real drug but does nothing |
| Double Blind Trial | Neither scientist nor patient know whether the drug being given is genuine or a placebo |
| Depressants | Decrease brain activity, slowing down responses of the nervous system |
| Stimulants | Increase brain activity and make you feel more alert |
| Painkillers | Reduce the number of painful stimuli at the nerve endings near an injury |
| Performance Enhancers | Help to build muscle and make people train harder |
| Hallucinogens | Distort perception by altering pathways the brain sends messages down |
| Retina | Light Sensitive part of the eye covered in receptors called rods and cones |
| Long-Sightedness | Lens is wrong shape and doesn't bend the light enough. Images of near objects brought into focus behind retina |
| Short-Sightedness | Lens is wrong shape and bends the light too much. Distant objects brought into focus in front of the retina |
| Binocular Vision | Two eyes working together to allow you to judge depth |
| Synapse | Connection between two neurones |
| Homeostasis | Maintaining a constant internal environment |
| Type 1 Diabetes | Pancreas produces little or no insulin. Insulin must be injected and diet controlled. |
| Type 2 Diabetes | Body becomes resistant to insulin, causing blood sugar to rise to a dangerous level. Diet must be controlled to treat this |
| Auxins | Plant hormones which control growth at tips of shoots and roots |
| Phototropic | Grow towards light |
| Geotropic | Grow towards gravity |
| Gene | Sequence of nucleotides forming a short length of a chromosome |
| Chromosomes | 23 pairs of nucleic acid and proteins found in the nucleus which carry genetic information |
| DNA | Deoxyribonucleic acid. Self-replicating material found within a chromosome and is the carrier of genetic information |
| Gametes | Sperm cells and egg cells |
| Mutations | Changes to the genetic code, creating new characteristics and more variation |
| Alleles | Different versions of the same gene |
| Homozygous | Two identical alleles for a particular gene |
| Heterozygous | Two different alleles for a particular gene |
| Genotype | The genetic makeup of a person (the alleles one carries for a particular gene) |
| Phenotype | The characteristics produced by an allele that a person displays physically |
| Dominant Allele | The characteristic that appears visible is caused by a dominant allele |
| Recessive Allele | The characteristic that can only appear if there is no presence of a dominant allele |
| Kwashiorkor | Form of malnutrition caused by lack of protein. Most common symptom is a swollen stomach |
| Parasite | Organism which lives off another at the other's expense |
| Vectors | Carry disease without being infected by it themselves |
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