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Stack #4203710
| Term | Definition |
|---|---|
| First step of a scientific method | Observe and ask questions |
| Second step of a scientific method | Do background research |
| Third step of a scientific method | Construct a hypothesis |
| Fourth step of a scientific method | Test by conducting an experiment |
| Fifth step of a scientific method | Record and process the data |
| Sixth step of a scientific method | Analyse the data |
| Seventh step of a scientific method | Evaluate the data and draw conclusions |
| Eighth step of a scientific method | Communicate your findings |
| Primary source | A source of information that comes from your own findings or experiments |
| Secondary source | A source of information that comes from someone else's research or findings |
| Dependent variable | The variable in an experiment that you measure |
| Independent variable | The variable in an experiment that you manipulate, change or test |
| Controlled variable | A variable in an experiment that must be kept constant, so it does not affect the dependent variable |
| Qualitative data | Data values that are worded/descriptive/categorical in nature |
| Quantitative data | Data values that are numerical in nature |
| How do you write an aim | Describe expected outcomes for each aim. What you expect to happen. 'The aim of the experiment is to find out...' |
| How do you write a method | Describe the materials, how they were used, calculations, etc. |
| How do you write results | Describe summarised data and statistical results and trends and patters |
| How do you write a conclusion | Summarise the experiment and main finding. Restate the purpose of the experiment. |
| Calculating total magnification | Eyepiece lens X objective lens |
| Resolution | How detailed and clear the image is (i.e. how easy it is to tell two separate objects apart) |
| Field of view (FOV): | How much of the object you can see when you look through the eyepiece |
| Magnification | How much the image of the specimen or object is increased in size (i.e. how much you are zooming in) |
| First cell theory | - Cells make up all living things - Cells are the basic building blocks of all living things - All cells come from their environment, in a similar way to crystals forming |
| Modern cell theory | - Cells make up all living things - Cells are the basic building blocks of all living things - All new cells are produced from existing cells - All cells contain genetic information, which is passed from cell to cell during cell division |
| Organelles | Prokaryote (simple), eukaryote (complex). Prokaryote = unicellular (made of one cell), eukaryote (uni/multicellular) made up of one or many |
| 3 components in every cell | Cell membrane, genetic material, cytosol |
| Nucleus | Large structure that holds genetic information (DNA) |
| Cell membrane | Thin double layer separating the inside and outside of the cell. Control what comes in and goes out - border security |
| Cytosol | Water based mixture filling the cell - different molecules (small + large), most chemical processes in cells happen in cytosol. |
| Ribosomes | Structure that produces protein from amino acids |
| Mitochondria | Structure that converts energy from food into form needed by cell |
| Endoplasmic reticulum | Network of tubes that transport substances inside cell |
| Golgi body | Transport between inside and outside of cell - packages protein made by ribosomes |
| Neuron | A nerve cell |
| Red blood cells | Transport oxygen to all cells in the body - flat - replaced every 120 days |
| Sperm cells | Carry half of the genetic info - flagellum (tail) for fast movement - combines with egg |
| Four chambers of the heart | Right atrium, left atrium, right ventricle, left ventricle (atrium = top parts of the heart), (ventricles = V-shaped bottom part of the heart) |
| What do the right side of the heart do | Right atrium receives oxygen-poor blood (deoxygenated blood) from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood (deoxygenated blood) to the lungs. |
| What does the left side of the heart do | The left atrium receives oxygen-rich blood (oxygenated blood) from the lungs and pumps it to the left ventricle. The left ventricle pumps the oxygen-rich blood (oxygenated blood) to the body. |
| Veins role | A thin-walled vessel with valves that carries blood back to the heart |
| Artery's role | A thick, muscular elastic vessel that carries blood away from the heart |
| Capillaries role | The smallest blood vessels, one cell thick, and the site of gas exchange with cells |
| Wet mount slide | Made using a drop of liquid - intended to be temporary |
| Pre-prepared slide | Already made - apply chemicals to preserve and permanently mount specimen, slide, coverslip |
| Mechanical digestion | Series of mechanical processes that break down food - chewing, mixing in stomach, emulsification with bile |
| Chemical digestion | Series of chemical reactions that break down food into simpler chemical substances - used by body |
| Saliva | Helps the food break and move through your body smoother |
| Organs in digestive system | Mouth, tongue, oesophagus, liver, gall bladder, duodenum, stomach, pancreas, large intestine, small intestine, rectum, anus |
| Digestive system function in body | Converts food into simplest form to be broken down, and later absorbed into blood stream from small intestine - nutrients are carried to each cell in the body |
| Heart | The heart pumps blood around your body as your heart beats |
| Mouth and tongue | To break down food into smaller particles in order to be eaten and swallowed |
| Oesophagus | Passage allowing material to pass from mouth to throat to stomach |
| Liver | Filters blood in body and breaks down poisonous substances (alcohol and drugs) |
| Gall bladder | Stores and concentrates bile from the liver |
| Stomach | Holds food and mixes it with acids and enzymes that break it down to liquid/paste |
| Duodenum | Absorbs vitamins, minerals, and other nutrients |
| Pancreas | Produces enzymes that help digest food (particularly protein) |
| Large intestine | Absorbs water and electrolytes, produces and absorbs vitamins and forming and propelling feces toward recti, for elimination |
| Small intestine | Helps to further digest food coming from the stomach |
| Rectum | Stores stool until its pushed out of your anus during a bowel movement |
| Anus | Passes stools out of the body |
Created by:
at827
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