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st 1 6 Weeks District Test Review Why is the circulatory system important to the respiratory system? The circulatory system transports the blood to all parts of the body picking up waste from the cells and delivering oxygen to the cells. The respiratory system filters the waste out of the blood and refills it with oxygen as it flows through the lungs. Why is the circulatory system important to the excretory system? The circulatory system transports waste from the cells through out the body in blood to the excretory system. The excretory system gets rid of the waste depending on what type it is. What is the function of the circulatory system? To pump blood through out the body To pick up waste and deliver oxygen to the cells through out the body What is the function of the respiratory system? To help an organism breath by taking in oxygen and getting rid of carbon dioxide What is the function of the heart? To pump blood through out the body What is the function of the blood vessels? To transport blood through out the body What is the function of the blood? To supply oxygen and nutrients to all the cells in the body. To transports waste from the cells to the excretory system What is the function of the lungs? To exchange carbon dioxide and oxygen in the blood To supply air for the individual to breath What is the function of the alveoli? Small air sacs that hold oxygen for the arteries to pick up Small air sacs that hold carbon dioxide until body exhales it Muscle Control Voluntary musclesmuscles that you are able to control Examples are leg and arm muscles Involuntary Musclesyou can not move them consciously. They just keep working Examples- heart What system is this? What is it’s function? Skeletal System Gives the body shape, support and protects vital organs This is an internal skeleton (found inside the body) What system is this? What is it’s function? Muscular Allows movement in the body Muscles that move bones are voluntary because you can control the movement. What system is this? What is it’s function? Nervous Sends / receives messages through out the body to control body functions. If you get hurt in the lab what is the first thing you should do? Tell the Teacher Explain how the skeletal, muscular, and nervous systems work together when a person is exercising. Skeletal system supports the body Muscular system helps the body to move Nervous send the messages for movement to occur When cutting the chicken wing you always move the scalpel, scissors _____ from your body. Away Label each type of joint below.. Pivot Gliding Ball and socket Hinge Blood cells are formed in the bone _______________________________ ____. Marrow The name of the structure that connects the bones to joints is called the _______________________________. ligaments Identify the type of joint which enables us to make the motions listed: Turning your head ______________________ Swinging your legs in any direction _______________________ Finger movement _________________ Movement of your wrist and ankles ____________________ A living bone is covered by a membrane called the _____________________. The same tough, flexible material that makes up a sharks skeleton and a humans ears, and tip of your nose is called ___________________ Body System Function Transports materials to and from the body cells Exchanges oxygen and carbon dioxide gases Enables the body to move: keeps the heart beating Sends messages through out the body Supports and protects the body: makes blood cells Supports and protects the body: makes blood cells Label the type of joints seen in the pictures below. Word Bank: marrow, muscles, phosphorus, support, calcium, internal Gives Shape and _________ to your body. Protects your ________ organs _________ are attached to bones to help them move. Blood cells are formed in the bone __________. ___________ and _________ are stored in the bones. Use the formula to calculate the work performed in the pictures below. Be sure to show your work. Use the formula to calculate the work performed in the pictures below. Be sure to show your work. Use a flow chart to show the transformation of energy from the sun to your meal. How has plant life been affected during our summer drought? It will wilt from lack of water, then it will die Relate a wilted plant to turgor pressure. As the cell fills with water, it pushes out onto the plant’s cell wall (turgid- high turgor pressure). As cell loses water, it does not push out on cell wall and this causes the plant to wilt.(flaccid- low turgor pressure) How does gravity affect directional growth on roots and stems in a seedling? Positive Geotropism: roots always grow down due to gravity pulling, but stems always grow up as Negative Geotropism Describe the plant response to a light during phototropism Phototropism: plants grow toward the light. How would birds be different if their bones make-up were similar to humans? Bones would be solid, dense Unable to get off of ground due to weight So, What is a force? A force is a push or pull Force gives an object the energy to move, stop moving, or change direction. Two forces that are very common are: Gravity- a force that pulls all objects towards the center of the Earth. Friction – a force that resists motion between two surfaces that are in contact. What would happen during a game of tug of war, if two teams exerted the same amount of force on the rope? The two forces would cancel each other out and the result would be no motion Unbalanced forces are not equal and this causes motion When two unbalanced forces are in opposite direction, the net force is exerted in the direction of the larger force (subtract) 15 Newtons (N) 40 Newtons (N) Net Force 25 Newtons (N) Forms of Energy Mechanical Thermal Chemical Energy can be transferred, or converted, from one form to another! Electrical Electromagnetic Nuclear Chemical Energy Potential energy stored in chemical bonds. Energy that causes a new substance to be form, chemical reaction Food Fire Cracker Stomach Battery Electrical Energy Moving electrical charges that produce electricity and energy. Static Shock Lightening Computers/TVs/ Radios Lights Mechanical Energy Physical Energy associated with the motion of an object. Chewing Sound Frog Dancing When is Work Really Work? In science you do work on an object when you exert a force on the object that causes the object to move some distance. If the object does not move, no work is done no matter how much force is exerted. Definitions Kinetic Energy: the energy of motion Potential Energy: stored energy Potential Energy Kinetic Energy Study Hard… YOU can do this!! www.plummerpumasscience.yolasite.com