Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Science Grade 7 Unit 08: Structure and Function oILiving Systems 20132014 This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 1 Two body systems work together to help remove waste products from blood. What 5 How do gills of fish help their survival? A Gills allow fish to break down water into are these two systems? A circulatory and excretory B skeletal and digestive C circulatory and integumentary oxygen and hydrogen. B Gills allow fish to process energy quicker so they can move faster. C Gills allow fish to breathe in air and water. D muscular and excretory D Gills allow fish to use the oxygen dissolved in the water. 2 One of the functions of the endocrine system in the body is to — F circulate blood to all parts of the body. G collect waste products and remove them from the body. H birds fly? F They have more fat than most animals, so they can fly for long distances. provide a strong framework for the G body. J 6 Which of the following adaptations helps They have hollow bones, so they are lighter. produce enzymes to help digest food. H They have smaller blood vessels, so their hearts have to work less in flight. 3 The main function of the excretory system is to ― J They have a larger stomach, so they can absorb food faster. A produce enzymes to help digest food. B collect and remove waste products from the body. C prevent disease and fight infections. D carry oxygen and nutrients to the body’s cells. 4 The nervous system of the human organism is MOST like which cell organelle? F mitochondrion G nucleus H chloroplast J cell membrane Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 GO ON Use the following graphic for the next three questions. The diagram below illustrates a vital process that occurs in the human body. 7 What two body systems are interacting in 9 What is the original source of O2 in the this diagram? alveoli? A integumentaryexcretory A heart B digestivecirculatory B inhaled air C nervousendocrine C nasal passages D respiratorycirculatory 8 Study the diagram carefully. What process D exhaled air 10 What is the major role of red blood cells in is illustrated in the diagram? the circulatory system? F photosynthesis F G gas exchange H pumping blood G prevent disease and fight infections J gas deposition H carry digestive juices to the stomach J send chemical messages to the carry nutrients and oxygen to body cells nervous system Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 GO ON 11 Ovaries produce and secrete hormones in 14 addition to eggs. To what human body regulates temperature and serves as a systems do ovaries belong? barrier against harmful microorganisms, A integumentary and reproductive belongs to the — B excretory and muscular F circulatory system. C endocrine and reproductive G nervous system. H digestive system. J integumentary system. D nervous and digestive 12 The largest human body organ, which The main function of the muscular system is ― 15 F support of the body. G break down of food. H movement of the body. J removal of waste. 13 Which two body systems represented in the diagram above help the body to break down molecules and absorb nutrients, and exchange oxygen and carbon dioxide? Which statement best describes the function of this human body system? B muscular and skeletal and wastes C digestive and respiratory supplies O2 to the blood, which in D circulatory and endocrine A breaks down food into nutrients B A respiratory and reproductive turn, delivers O2 to all parts of the body C provides support and movement for the body D produces and secretes hormones which regulate metabolism, growth, and development Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 GO ON 16 The human body has specialized organs which collect and process substances from the blood. The concentrated substances are then secreted as hormones to regulate body processes. These specialized organs are called — F ducts. G glands. H organelles. J nodes. Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 GO ON 17 System A System B System C System D Transports Absorbs Provides Produces nutrients nutrients protection chemicals to body for tissues to regulate cells and bone organs growth Transports Breaks Provides Maintains oxygen down structure proper to body food into and frame blood cells simple for body sugar substances level Helps with removing Converts Produces Helps to wastes food into new red shape from cells energy blood mood and cells feelings Name the body system in column A: ________________________________________________________ ________________________________________________________ Name the body system in column B: ________________________________________________________ ________________________________________________________ Name the body system in column C: ________________________________________________________ ________________________________________________________ Name the body system in column D: ________________________________________________________ ________________________________________________________ Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 GO ON 18 19 The cell wall is MOST like which organ system? F nervous G excretory H respiratory J integumentary Which science tool would be appropriate for the close observation of the inside of a bird bone? A thermometer B petri dish C hand lens D balance Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 GO ON 20 A student is investigating the effect of length of exercise time on heart rate. She performed three trials over a period of three days. Based on her data, she concluded that exercising for longer times results in a continued increase in heart rate. Which of the following data tables accurately represents the outcome of her investigation? F G H J Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 GO ON 21 What purpose does the xylem in a plant serve? A transportation of food and nutrients B transportation of water and minerals C anchors the plant in the ground D transforms energy through photosynthesis Page This document is the property of the TCMPC and may not be replicated or changed without permission. 12/05/13 STOP