Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Organ Systems Worksheet
Document related concepts
Transcript
Name:……………………………………………………. Date: …………………… Organ Systems Worksheet This worksheet accompanies The Digestive System Summary and Multicellular Organisms Summary. 1. Describe the difference between unicellular and multicellular organisms. …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… 2. Describe two advantages of being multicellular. …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… 3. Multicellular organisms contain groups of specialized cells which are adapted to carry out specific functions. These combine to make organs and organ systems. Explain why the development of specialized organ systems might be important for multicellular organisms. …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… …………………………………………………………………………………………………………… 4. Complete the following sentences: a) All multicellular organisms begin as …………………….….… b) Differentiation is a process by which……………….……………………………………………. …………………………………………………………………………………………………………… © Boardworks Ltd 2011 1 Name:……………………………………………………. Date: …………………… c) Cell division is a process by which…………………………………………………………….… …..………………………...………………………………………………………………………… 5. Write a definition for each of these words and describe what they are made up of: a) Cell ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… b) Tissue ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… i) Give one example of a type of tissue and describe its function in the body. ……………………………………………………………………………………………… c) Organ ……………………………………………………………………………………………………… ………………………………………………………………………………………………………. i) Give one example of a type of organ and describe its function in the body. …………………………………………………………………………………………. d) Organ system .............................................................................................................................. .............................................................................................................................. 6. The stomach is an organ that contains three types of specialized tissue. Write the function of each tissue next to its name: a) Muscular tissue…………………………………………………………………………………….. ……………………………………………………………………………………………................ © Boardworks Ltd 2011 2 Name:……………………………………………………. Date: …………………… b) Glandular tissue……………………………………………………………………………………. ………………………………………………………………………………………………………. c) Epithelial tissue…………………………………………………………………………………….. ……………………………………………………………………………………........................... 7. The digestive system is one example of a system through which humans and other mammals exchange substances with the surrounding environment. Label the organs of the digestive system on the diagram below. pancreas liver stomach oesophagus small intestine large intestine ………………...... gall bladder salivary glands ………………...... ………………...... ………………...... ………………...... ………………...... ………………...... ………………...... 8. Give another example of an organ system that helps to exchange substances with the environment. ……………………………………………………………………………………………………...… 9. Describe the function of the pancreas in the digestive process. …………………………………………………………………………………………………..……… ……………………………………………………………………………………………………..…… © Boardworks Ltd 2011 … 3 Name:……………………………………………………. Date: …………………… 10. Fill in the gaps in these sentences about the digestive system: The digestive system includes glands such as the ………………… And salivary glands which produce ………………… juices. The digestive system is made up of the following: the stomach and …………………, where digestion occurs the liver, which produces ………………… the small intestine, where the ………………… of soluble food occurs the large intestine, where water is absorbed from the undigested food, producing …………………. absorption faeces digestive bile small intestine pancreas 11. Explain three ways in which the small intestine is adapted to speed up the diffusion of digested food molecules into the blood stream. ....……………………………………………………………………………………………………… ..………………………………………………………………………………………..……………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… 12. It is claimed that Probiotics like Bifidobacteria can reduce levels of low-density cholesterol in the blood. Explain one way this could be tested and evaluate the validity of any potential results. ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… ………………………………………………………………………………………………………… © Boardworks Ltd 2011 4
