Term | Definition |
Nutrition | the way an organism gets its food. |
Respiration | the release of energy from food. |
Excretion | the removal of waste matter from the body |
Reproduction | the formation of new organisms |
Response | reacting to changes in the surroundings |
Invertebrates | animals that do not have a backbone. |
Vertebrates | animals that have a back bones |
Tissues | a group of similar cells which carry out the same function. |
Cells | are what living things are made of |
Organ | a structure that contains two or more tissues working together. |
System | a number of organs working together |
Digestion | the breakdown of food. |
Chemical digestion | breakdown of food using enzymes |
Physical digestion | breakdown of food using mechanical methods. |
Enzyme | a protein that speeds up a reaction without being used up in the reaction. |
Product | the substance produced as a result of the action of an enzyme |
Substrate | the substance that an enzyme acts on |
Microscope | used to view small objects in detail |
Eyepiece lens | enlarges the image of the object |
Focus knobs | allow a clear sharp image to be seen |
Nosepiece | rotates so that different lenses can be used |
Objective lens | located on the nose piece it enlarges the image of the object |
Stage | the slide is placed on the stage for viewing |
Mirror | used to shine a light source through the slide |
Respiration | the release of energy from food |
Aerobic Respiration | needs oxygen to release energy from food |
Nose | cleans, warms and moistens air |
Trachea | allows air to pass to and from the trachea |
Bronchi | allows air to pass to and from the trachea |
Bronchioles | allow air to pass to and from the alveoli |
Alveoli | allows gas exchange |
Diaphragm | cause the air to move in or out of the lungs |
Plasma | liquid part of blood, transports chemicals and heat. |
Red blood cells/Haemoglobin | transports oxygen |
White blood cells | fights infections |