Principles of Biology Chapter 6 Quiz

Which statement most accurately describes the second law of thermodynamics?

• Energy cannot be changed from one form to another without a loss of usable energy.

• One usable form of energy can be completely converted into another usable form.

• Energy cannot be created nor destroyed but it can be changed from one form to another.

• Energy cannot be created or destroyed.

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NGSS.HS-PS3-4

NGSS.HS-PS3-2

Which of the following statements most accurately describes the first law of thermodynamics?

• One usable form of energy cannot be completely converted into another usable form.

• One usable form of energy can be completely converted into another usable form.

• Energy cannot be created or destroyed.

• Energy can be neither created nor destroyed but it can be changed from one form to another.

Which of the following is NOT a correct statement about the second law of thermodynamics and entropy?

• The amount of disorder in the universe is always increasing.

• To maintain organization of a cell, a continual input of energy is required.

• Living cells without energy would become less organized.

• Carbon dioxide and water form glucose without the input of energy.

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NGSS.HS-PS3-4

Occasionally someone claims to have built a machine that can run forever, producing as much energy as it consumes. This has always been disproved because it violates

• the first law of thermodynamics.

• the second law of thermodynamics.

• laws preventing any conversion between types of energy.

• coupled reaction equations.

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NGSS.HS-PS3-2

The high energy bond in ATP that is used by cells is found in or between

• the adenine base.

• the adenine and the ribose.

• the adenine and the phosphates.

• the phosphate groups.

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NGSS.HS-LS1-7

ATP contains

• an adenine base and two phosphate groups.

• an adenine base and three phosphate groups.

• an adenine base, a ribose sugar, and two phosphate groups.

• an adenine base, a ribose sugar, and three phosphate groups.

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NGSS.HS-LS2-3

The main reason that ATP is considered the energy currency in cells is because it

• carries a positive charge.

• contains accessible energy in phosphate bonds.

• contains an adenine base.

• contains a sugar ring.

During an enzymatic reaction, what happens to the enzyme?

• It becomes the product.

• It becomes the substrate.

• It is used up.

• The enzyme and the substrate form a temporary complex.

Enzymes are specific. This means that they

• have a preferred pH.

• have a preferred temperature.

• have a particular substrate.

• are only in certain cells.

Which of the following statements is true about enzymes?

• Their 3D shape can vary and still be active.

• Boiling temperatures do not affect their activity.

• They catalyze only one specific type of reaction.

• They can associate with a wide variety of substrates.

• They are unaffected by changes in pH.