Ch. 9.1 Quizizz

Which types of energy make up the total energy in a system?

• Kinetic energy and potential energy

• Thermal energy and sound energy

• Electrical energy and chemical energy

• Nuclear energy and light energy

Why is chemical energy classified as potential energy?

• Because it is stored in the bonds of molecules.

• Because it is related to motion.

• Because it is a form of kinetic energy.

• Because it is always in the form of heat.

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Which of the following best explains the second law of thermodynamics?

• Energy cannot be created or destroyed, only transformed.

• The entropy of an isolated system always increases over time.

• For every action, there is an equal and opposite reaction.

• The total energy of a closed system remains constant.

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The energy obtained by the ladybug comes from the Sun because:

• The Sun provides light and heat necessary for photosynthesis.

• Ladybugs directly consume sunlight.

• The Sun is the only source of energy in the universe.

• Ladybugs are solar-powered insects.

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Identify one anabolic pathway and one catabolic pathway in living things.

• Photosynthesis and Glycolysis

• Glycolysis and Photosynthesis

• Krebs Cycle and Calvin Cycle

• Calvin Cycle and Krebs Cycle

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Which of the following best explains the first and second laws of thermodynamics?

• The first law states that energy cannot be created or destroyed, only transformed, and the second law states that entropy of an isolated system always increases.

• The first law states that entropy of an isolated system always increases, and the second law states that energy cannot be created or destroyed, only transformed.

• The first law states that energy can be created and destroyed, and the second law states that entropy of an isolated system always decreases.

• The first law states that energy cannot be created or destroyed, only transformed, and the second law states that entropy of an isolated system always decreases.

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Why are metabolic pathways important for autotrophs and heterotrophs?

• They allow for the conversion of energy into usable forms.

• They provide structural support to cells.

• They are responsible for cell division.

• They help in the transport of nutrients across cell membranes.

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Which of the following processes is an example of a catabolic pathway?

• Photosynthesis

• Cellular respiration

• Protein synthesis

• DNA replication

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Is the reaction catabolic or anabolic?

• catabolic

• anabolic

• neither

• both

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Why are catabolic and anabolic pathways often coupled in a cell?

• the intermediates of a catabolic pathway are used in the anabolic pathway

• both pathways use the same enzymes

• the free energy released from one pathway is used to drive the other pathway

• their enzymes are controlled by the same activators and inhibitors