Chemistry of Life Unit Study Help
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The element lithium (Li) is most likely to react chemically with which element? | Fluorine
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| Which element shares the same physical and chemical properties of neon (Ne), an invisible gas which doesn't react easily with other elements? | Helium
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| Which of the following elements could easily substitue for Calcium (Ca)? | Magnesium
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| Why do the skeletal muscle cells and smooth muscle cells look different from each other? | They are specialized to perform different functions
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| Which organic molecule does Benedict's solution identify? | Carbohydrates
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| What is an independent variable? | variable that scientists choose to change
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| Hormones are a part of which body system? | Endocrine system
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| Where is protein digested? | Stomach and Small Intestine
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| Which organs are primarily responsible for removing waste products from the blood? | kidneys and lungs
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| Name the organic molecule that is made of sugars and starches. | Carbohydrates
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| What will happen to the heart rate as someone runs on the treadmill? | it will increase
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| Why does heart rate increase while exercising? | muscles need more glucose and oxygen because they are working harder
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| What are the bottom chambers of the heart called? | ventricles
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| What is the difference between arteries and veins? | Veins carry blood to the heart while arteries carry blood away from the heart
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| What is the sequence that blood travels through the body? | heart to lungs to heart to body
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| What is the best way as 7th graders describe atoms? | by constructing a model
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| What must happen to food in order for organisms to use it for growth and repair? | food must be broken down
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| What gas does the body use to help convert into energy? | oxygen
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| Where do waste products in the lungs come from? | they are produced when glucose and oxygen react in cells, releasing energy
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| Which gas is produced as a waste product by the body? | carbon dioxide
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| What is the structure of bones like? | they are living structures that contain blood vessels and nerves
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| What part of the body sends messages between body organs? | hormones
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| What path does a nerve impulse travel in the body? | sensory neuron to spinal cord to motor neuron
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| Which two systems of the body directly interact to produce a reflex action? | nervous and muscular
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