What does the First Law of Thermodynamics state?

• Energy can be converted from one form to another but cannot be created or destroyed.

• Energy can be created and destroyed.

• Energy is always lost as heat.

• Energy cannot be converted.

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According to the Second Law of Thermodynamics, what happens to energy during conversion?

• Energy is completely conserved.

• Energy is lost as thermal energy.

• Energy is created.

• Energy is destroyed.

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What is an example of the Second Law of Thermodynamics in nature?

• A bear catching and eating a fish, losing usable energy.

• A plant growing taller.

• Water freezing into ice.

• A car accelerating on a highway.

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What is the primary source of energy for life on Earth?

• The Moon

• The Sun

• The Ocean

• The Wind

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What are organisms called that make their own food using inorganic substances?

• Heterotrophs

• Autotrophs

• Carnivores

• Herbivores

Which of the following is an example of an autotroph?

• Lions

• Humans

• Plants

• Fungi

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How do heterotrophs obtain their energy?

• By producing their own food using sunlight

• By eating other organisms

• By absorbing sunlight directly

• By converting sunlight into chemical energy

What role do autotrophs play in the energy flow from the sun?

• They consume other organisms for energy

• They convert sunlight into chemical energy

• They directly use sunlight for movement

• They store energy in the form of heat

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What is metabolism?

• The process of cell division

• All of the chemical reactions inside a cell

• The breakdown of food in the stomach

• The movement of molecules across a membrane

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What is a metabolic pathway?

• A single chemical reaction in a cell

• A series of reactions where the product of one is the reactant for the next

• The movement of energy through a cell

• The breakdown of proteins into amino acids

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