Question

  

Match the term to the correct description. Choices may only be used once.

Group of answer choices

[ Choose ]            An inhibitor molecule binds to the active site.            Part of an enzyme where the substrate binds to            Protein molecules that function as biological catalysts            An inhibitor molecule binds to an allosteric site and prevents the substrate from binding to the active site.            A substance that helps a chemical reaction to occur            A reactant molecule acted upon by an enzyme            Any change in the shape of a protein molecule due to change in environmental conditions.            Energy input necessary to begin a chemical reaction      

catalyst

enzyme

activation energy

active site

substrate

denaturation

  competitive inhibition

noncompetitive inhibition

Question 101 pts

Reactions that absorb free energy and store it in the molecules of the products are called

Group of answer choices

exergonic

endergonic

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Question 111 pts

Reactions that release free energy are called

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Question 121 pts

Small molecules are built into larger ones by ____________________ reactions

Group of answer choices

anabolic

catabolic

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Question 131 pts

The chemical reactions that take place inside cells may be collectively referred to as ________.

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Question 141 pts

The cholesterol synthesized by cells uses which component of the glycolytic pathway as a starting point?

Group of answer choices

acetyl CoA

pyruvate

glucose

carbon dioxide

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Question 151 pts

The energy currency used by cells is _____.

Group of answer choices

ADP

adenosine

AMP

ATP

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Question 161 pts

The following chemical reaction 6CO₂ + 6H₂O-->C₆ H₁₂ O₆ + 6O₂ may be described as

Group of answer choices

anabolic

catabolic

endergonic

exergonic

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Question 171 pts

The glucose that enters the glycolysis pathway is split into two molecules of _________.

Group of answer choices

phosphate

pyruvate

ATP

NADH

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Question 181 pts

The ______ law of thermodynamics states the energy cannot be created or destroyed?

Group of answer choices

second

first

zeroth

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Question 191 pts

The rusting of iron is an example of a spontaneous reaction that occurs slowly?

Group of answer choices

true

false

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Question 201 pts

The small amount of energy that is required for all chemical reactions to occur is called

Group of answer choices

kinetic energy

thermal energy

potential energy

activation energy

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Question 211 pts

The study of energy and energy transfer involving physical matter is called ______________.

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Question 221 pts

The term _____________ is used to describe the concept of energy flow

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Question 231 pts

This chemical reaction C₆ H₁₂ O₆ + 6O₂-->6H₂ O + 6CO₂ is classified as a________________, and as a________________ reaction

Group of answer choices

catabolic

anabolic

exergonic

endergonic

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Question 241 pts

What do the electrons added to NAD+ do?

Group of answer choices

They become part of a fermentation pathway.

They go to another pathway for ATP production.

They are converted into NADP.

They energize the entry of the acetyl group into the citric acid cycle.

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Question 251 pts

Which law of thermodynamics states that the amount of energy in the universe is constant, and no energy transfer is 100% efficient.

Group of answer choices

first

second

zeroth

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Question 261 pts

Which of the following is not true about enzymes?

Group of answer choices

They are usually made of amino acids.

They lower the activation energy of chemical reactions.

Each one is specific to the particular substrate(s) to which it binds

They are consumed by the reactions they catalyze.

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Question 271 pts

Which of the following fermentation methods can occur in animal skeletal muscles?

Group of answer choices

propionic fermentation

lactic acid fermentation

alcohol fermentation

mixed acid fermentation

Answer 1

1. Energy input necessary to begin a chemical reaction activation energy

2. Reactions that absorb free energy and store it in the molecules of the products are called endergonic reactions

3. Reactions that release free energy are called exergonic reactions

4. Small molecules are built into larger ones by anabolic reactions

5. The chemical reactions that take place inside cells may be collectively referred to as metabolism

6. The cholesterol synthesized by cells uses which component of the glycolytic pathway as a starting point acetyl CoA

7. The energy currency used by cells is ATP

8. The following chemical reaction 6CO₂ + 6H₂O-->C₆ H₁₂ O₆ + 6O₂ may be described as endergonic reaction

9. The glucose that enters the glycolysis pathway is split into two molecules of pyruvate

10. The First law of thermodynamics states the energy cannot be created or destroyed

11. The rusting of iron is an example of a spontaneous reaction that occurs slowly. TRUE

12. The small amount of energy that is required for all chemical reactions to occur is called  activation energy

13. The study of energy and energy transfer involving physical matter is called Thermodynamics

14. The term food chain is used to describe the concept of energy flow

15. This chemical reaction C₆ H₁₂ O₆ + 6O₂-->6H₂ O + 6CO₂ is classified as a exergonic reaction

16. What do the electrons added to NAD+ do. They go to another pathway for ATP production.

17. Which law of thermodynamics states that the amount of energy in the universe is constant, and no energy transfer is 100% efficient. SECOND LAW

18. Which of the following is not true about enzymes? They are consumed by the reactions they catalyze.

19. Which of the following fermentation methods can occur in animal skeletal muscles. lactic acid fermentation