Enzymes Flashcards

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1
Q

In a chemical reaction, the starting substances are called ______.

A

Reactant

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2
Q

The principle of ________ _____ _______ states that matter is neither created nor destroyed during a chemical reaction

A

Conservation of matter

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3
Q

_________ ________ is the minimum energy needed to start a chemical reaction

A

Activation energy

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4
Q

Reactions that observe energy are known as ________ reactions

A

Endergonic

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5
Q

Enzymes are biological _______ that speed up chemical reactions

A

Catalyst

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6
Q

What are products in a chemical reaction?

A

The substances you end with

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7
Q

What best describes a catalyst?

A

It increases the rate of a reaction without being consumed

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8
Q

What happens when a reaction reaches equilibrium

A

The forward and reverse reaction rates are equal

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9
Q

Whst factor does not influence enzyme activity?

A

Light intensity

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10
Q

What is the role of enzymes and biological systems?

A

They act as catalysts to speed up reactions

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11
Q

Explain the difference between endergonic and exergonic reactions.

A

Endergonic reactions observed energy, while Exergonic releases

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12
Q

Describe how a catalyst can affect a chemical reaction without being consumed

A

It can lower the activation energy that is needed

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13
Q

Discuss two factors that can influence the activity of enzymes and how they impact the reaction rate.

A

Temperature and pH affect enzyme activity. High temperatures or extreme pH can denature enzymes, reducing the reaction rate

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14
Q

Molecules on which an enzyme acts

A

Substrate

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15
Q

Process where substances changes into new substances

A

Chemical reaction

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16
Q

Substance that speeds up a reaction without being consumed

A

Activation energy

17
Q

Substance formed as a result of a chemical reaction

A

Product

18
Q

Starting substance in a chemical reaction

A

Reactant

19
Q

Biological catalyst that speeds up reactions in living organisms

A

Enzyme

20
Q

State where forward and reverse reaction rates are equal

A

Equilibrium