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Energy + Enzymes > Energy > Flashcards

Energy Flashcards

1
Q

Since energy doesn’t cycle, animal cells…(3)

A

Require a continuing source of glucose
Are dependent on plants
Must produce ATP nonstop

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2
Q

ATP is used for…(3)

A

Chemical Work
Transport Work
Mechanical Work

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3
Q

Any energy transformation involves the loss of some energy as…

A

Heat

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4
Q

The useful energy conversion in photosynthesis is…

A

Solar to Chemical

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5
Q

Is the breakdown of ATP exergonic or endergonic

A

Exergonic because energy is released from the ATP

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6
Q

Why is ATP a “rechargeable” battery

A

When ATP loses a phosphate and becomes ADP it needs to be recharged. Once it gains a phosphate group and becomes ATP again is is fully charged.

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7
Q

How does ATP provide energy

A

When the bond between the 2nd and 3rd phosphates breaks, it releases a lot of energy and the 3rd phosphate is removed.

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8
Q

What type of biological molecule type is ATP?

A

Nucleotide

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9
Q

The 3 main components of ATP

A

3 phosphates
Ribose sugar
Adenine nitrogenous base

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10
Q

The order of the ATP cycle

A

Add phosphate
ATP
Lose phosphate
ADP

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11
Q

ATP → ADP + P is exergonic or endergonic

A

Exergonic

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12
Q

ADP + P → ATP is exergonic or endergonic

A

Endergonic

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13
Q

What is a coupled reaction

A

Energy released from an exergonic reaction drive an endergonic reaction

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14
Q

Exergonic is…

A

releases energy and is spontaneous

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15
Q

Endergonic is…

A

a reaction that needs energy and requires energy for the reaction to happen

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16
Q

What is the first law of thermodynamics?

A

Energy cannot be created or destroyed, it can be transformed/converted from one form to another

17
Q

What is the second law of thermodynamics?

A

When an energy transformation occurs, some useable energy is lost, so no energy transformation is 100% efficient

18
Q

What is the initial source of energy for life

A

The sun

19
Q

Why do organisms need a constant input of energy?

A

Energy flows, it does not cycle, so a new input of energy is constantly needed. Also, some usable energy is lost with each transformation of energy.

20
Q

Potential energy…

A

energy available to do work

21
Q

Kinetic energy…

A

energy activelyI doing work

22
Q

Is chemical energy potential or kinetic

A

Chemical energy is a type of potential energy because the energy is stored in the bonds of molecules

Energy + Enzymes (2 decks)

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