Term | Definition |
Excretion | Getting rid of waste |
Growth | Increase in cell size or cell number |
Respiration | Oxygen + glucose carbon dioxide + water + ENERGY |
Nutrition | Chemicals needed for respiration or growth |
Organism | A single living thing |
Reproduction | The creation of a new organism |
Sensitivity | Detect changes in the environment |
Bladder | Stores urine |
Urine | Removes wastes especially nitrogen as urea |
Diaphragm | Contracts down to fill lung, relaxes up to empty lung |
Food pipe | Also called gullet, oesophagus |
Heart | Pumps blood |
Intestines | Small takes in nutrients, large takes in water |
Kidneys | Removes wastes from the blood |
Photosynthesis | Carbon dioxide + water + ENERGY oxygen + glucose |
Liver | Destroys toxins in the blood, stores glucose |
Lungs | Oxygen and carbon dioxide gas exchange by diffusion |
Organ | Group of tissues working together to perform a function eg. skin, lung, heart |
Rectum | Stores faeces |
Root | Absorbs water and minerals |
Skin | For protection, insulation, and sensitivity |
Stem | Transports water and nutrients |
Stomach | Physical and chemical digestion of food |
Trachea | Also called wind pipe |
Tissue | Group of similar cells working together |
Fat tissue | Stores fat |
Muscle tissue | Allows movement |
Root hair tissue | Absorbs water |
Xylem tissue | Transports water |
Biopsy | Small tissue sample taken for examination |
Coarse focusing wheel | Moves stage quickly for focusing under x10 lens only |
Fine focusing wheel | Moves stage finely for focusing above x10 lens |
Slide | Glass piece to lay specimen on |
Coverslip | Glass cover on top of slide |
Image | What you see down the microscope |
Focus | Adjust to make image clear |
Specimen | The object you are looking at |
Eyepiece lens | The first lens you look down to see the objective lens |
Objective lens | The lens closest to the specimen |
Magnification | The increase in size ratio |
Cell | The basic unit of life |
Cell surface membrane | The layer that determines what goes in or out of a cell |
Cell wall | Layer outside the cell membrane for support |
Cellulose | Material that makes the cell wall of a plant cell |
Chlorophyll | Green substance inside chloroplasts |
Chloroplast | Organelle that contains chlorophyll for photosynthesis |
Organelle | Group of chemicals that work as a small organ for a cell |
Cytoplasm | The liquid inside the cell where chemical reactions take place |
Mitochondria | The organelle where respiration for ENERGY takes place |
Nucleus | The organelle that contains the DNA of the cell |
Vacuole | A storage organelle |
Blood vessel | Tube that carries blood |
Organ system | A group of organs that work together to do a job |
Breathing system | Organ system for oxygen and carbon dioxide exchange |
Circulatory system | Organ system to transport oxygen, glucose, water, carbon dioxide and other substances |
Digestive system | Organ system to that breaks down food to smaller molecules for absorption into the blood |
Nerve tissue | Tissue made of nerve cells and other types of cells |
Nervous system | Organ system for communication |
Urinary system | Organ system that cleans blood and removes wastes |
Water transport system | Organ system that carries water in a plant using xylem tissue |
Organ transplant | Replacing an organ from one organism to another |