Unit 8.3.1 Study Guide
8.3.1
1. Organisms are made of cells that have similar structural characteristics
* Outline the historical development of the cell theory, in particular, the contributions of Robert Hooke and Robert Brown
Date | Name | Event | 1590 | Janssens | World first two lens, compound microscope | 1655 | Robert Hooke | First person to use the word ‘cells’Observes these ‘cells’ in cork | 1600’s | Anton van Leeuwanhoek | Improvements in microscopesObserves muscle fibres and bacteria | 1831 | Robert Brown | Recognised the nucleus as a regular part of all plant cellsNamed it ‘nucleus’ | 1838 | Matthias Schleiden | Proposed cell theory with SchwannAll plants are made up of cells | 1839 | Theodor Schwann | First to state …show more content…
* Meat is high in energy, and is relatively easy to digest * This means that the digestive systems of carnivores are short compared to herbivores and also have to specialised organs like the caecum or rumen * They have very short large intestines, as the meat has already been absorbed in the small intestine
* * plan, choose equipment or resources and perform first-hand investigations to gather information and use available evidence to demonstrate the need for chlorophyll and light in photosynthesis * perform a first-hand investigation to demonstrate the relationship between surface area and rate of reaction * identify data sources, gather, process, analyse and present information from secondary sources use available evidence to compare the digestive systems of mammals, including a grazing herbivore, carnivore and a predominantly nectar feeding]
8.3.4 * compare the roles of the respiratory, circulatory and excretory …show more content…
Also involved in maintaining essential balance and functioning of the mammalian body. | Transport of materials- including gases nutrients and wastes around the body, from where they are absorbed/ produced to where they are released/ needed | Respiratory System | Lungs and breathing tubes- trachea and bronchi | Involved in assisting the movements and exchange of materials with the environment. Also involved in maintaining essential balance and functioning of the mammalian body. | Gaseous exchange- uptake of oxygen and the release of carbon dioxide to allow energy production by cellular respiration. | Excretory System | Kidneys and transport/storage organs- ureters, bladder and urethra | Involved in assisting the movements and exchange of materials with the environment. Also involved in maintaining essential balance and functioning of the mammalian body. | The removal of metabolic waste products from the body eg. Nitrogenous wastes such as urea. | * Identify and compare the gaseous exchange surfaces in an insect, a fish, a frog and a
1. Organisms are made of cells that have similar structural characteristics
* Outline the historical development of the cell theory, in particular, the contributions of Robert Hooke and Robert Brown
Date | Name | Event | 1590 | Janssens | World first two lens, compound microscope | 1655 | Robert Hooke | First person to use the word ‘cells’Observes these ‘cells’ in cork | 1600’s | Anton van Leeuwanhoek | Improvements in microscopesObserves muscle fibres and bacteria | 1831 | Robert Brown | Recognised the nucleus as a regular part of all plant cellsNamed it ‘nucleus’ | 1838 | Matthias Schleiden | Proposed cell theory with SchwannAll plants are made up of cells | 1839 | Theodor Schwann | First to state …show more content…
* Meat is high in energy, and is relatively easy to digest * This means that the digestive systems of carnivores are short compared to herbivores and also have to specialised organs like the caecum or rumen * They have very short large intestines, as the meat has already been absorbed in the small intestine
* * plan, choose equipment or resources and perform first-hand investigations to gather information and use available evidence to demonstrate the need for chlorophyll and light in photosynthesis * perform a first-hand investigation to demonstrate the relationship between surface area and rate of reaction * identify data sources, gather, process, analyse and present information from secondary sources use available evidence to compare the digestive systems of mammals, including a grazing herbivore, carnivore and a predominantly nectar feeding]
8.3.4 * compare the roles of the respiratory, circulatory and excretory …show more content…
Also involved in maintaining essential balance and functioning of the mammalian body. | Transport of materials- including gases nutrients and wastes around the body, from where they are absorbed/ produced to where they are released/ needed | Respiratory System | Lungs and breathing tubes- trachea and bronchi | Involved in assisting the movements and exchange of materials with the environment. Also involved in maintaining essential balance and functioning of the mammalian body. | Gaseous exchange- uptake of oxygen and the release of carbon dioxide to allow energy production by cellular respiration. | Excretory System | Kidneys and transport/storage organs- ureters, bladder and urethra | Involved in assisting the movements and exchange of materials with the environment. Also involved in maintaining essential balance and functioning of the mammalian body. | The removal of metabolic waste products from the body eg. Nitrogenous wastes such as urea. | * Identify and compare the gaseous exchange surfaces in an insect, a fish, a frog and a