Cellular Respiration and Science Concepts

Which gas is released as a byproduct during cellular respiration in humans?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

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FL.SC.8.L.18.2

What is the main purpose of cellular respiration in cells?

• To produce food

• To provide energy

• To release oxygen

• To store water

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FL.SC.8.L.18.2

Which molecule is broken down during cellular respiration to release energy?

• Glucose

• Starch

• Protein

• Fat

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FL.SC.8.L.18.2

What is a hypothesis?

• A proven fact

• A testable explanation

• A scientific law

• An observation

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FL.SC.8.N.1.4

Which of the following best describes a scientific law?

• A guess about how something works

• A statement that describes a consistent natural phenomenon

• An untested idea

• A detailed explanation of why something happens

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FL.SC.7.N.3.1

Which process provides energy for cellular activities by breaking down food molecules?

• Photosynthesis

• Cellular respiration

• Fermentation

• Digestion

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FL.SC.8.L.18.2

Why is carbon dioxide released during cellular respiration?

• It is needed for energy production

• It is a waste product from breaking down glucose

• It helps cells grow

• It is used to make proteins

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FL.SC.8.L.18.2

How does cellular respiration help maintain homeostasis in organisms?

• By producing oxygen

• By providing energy for cellular functions

• By storing water

• By creating food

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FL.SC.8.L.18.2

A student forms a hypothesis that plants grow faster in blue light than in red light. Why is this hypothesis valuable, even if the results do not support it?

• It proves the student is correct

• It leads to further investigations and learning

• It is a scientific law

• It cannot be tested

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FL.SC.8.N.1.4

Which of the following statements best explains the difference between a theory and a law?

• A theory is a guess, while a law is proven

• A theory explains why phenomena occur; a law describes what happens

• Both are guesses

• A law is less important than a theory

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FL.SC.7.N.3.1