Cellular Respiration

What is the scientific definition of energy?

• The stuff that comes out of our walls to power our homes.

• The ability to cause change in the form of work.

• A swirling, whirling vibe that connects us all.

• The heat produced by an oven.

What is the primary source of most usable energy on Earth?

• Batteries

• Power plants

• The sun

• Chemical reactions

Which statement accurately describes the First Law of Thermodynamics?

• Energy can be created but not destroyed.

• Energy can be destroyed but not created.

• Energy can be created and destroyed.

• Energy can't be created or destroyed, only transformed or transferred.

What is the primary role of ATP (Adenosine Triphosphate) in cells?

• To store genetic information.

• To act as a rechargeable battery, storing and releasing energy.

• To form the structural components of cell membranes.

• To transport oxygen throughout the body.

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What does the Second Law of Thermodynamics state about entropy in the universe?

• Entropy is always decreasing.

• Entropy remains constant.

• Entropy is always increasing.

• Entropy can either increase or decrease depending on the system.

Which type of chemical reaction absorbs energy from its surroundings?

• Exergonic reaction

• Spontaneous reaction

• Endergonic reaction

• Catalytic reaction

How do enzymes speed up chemical reactions?

• By increasing the activation energy.

• By lowering the activation energy.

• By permanently altering the reactants.

• By changing the products of the reaction.

What is the process called when the energy from an exergonic reaction is used to power an endergonic reaction?

• Catalysis

• Metabolic pathway

• Coupling

• Spontaneous reaction