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Honors Biology > 2.4 > Flashcards

2.4 Flashcards

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0
Q

What is conserved during chemical reactions in living organisms?

A

Mass and energy

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1
Q

A process that changes, or transforms, one set of chemicals into another

A

Chemical reaction

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2
Q

The elements or compounds that enter into a chemical reaction are known as what?

A

Reactants

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3
Q

The elements or compounds produced by a chemical reaction are called what?

A

Products

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4
Q

What do chemical reactions involve changes in?

A

Chemical bonds that join atoms in compounds

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5
Q

What is released or absorbed whenever chemical bonds are formed or broken?

A

Energy

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6
Q

What does energy determine in a chemical reaction?

A

Whether it will occur

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7
Q

Chemical reactions that released energy are cause by?

A

There own

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8
Q

Chemical reactions that absorb energy are caused by?

A

A source of energy

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9
Q

Every organism must have a what in order for a chemical reaction to carry out?

A

A source of energy

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10
Q

What do organisms need to do to survive?

A

Carry out reactions that require energy

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11
Q

How do humans release energy?

A

When we digest food for (example) growth

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12
Q

How animals get their energy to release?

A

When they consume other animals

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13
Q

The energy you need to get a reaction started

A

Activation energy

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14
Q

What do catalysts make possible?

A

Chemical reactions

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15
Q

What do catalysts do?

A

It speeds up the rate of a chemical reaction by lowering the activation energy in order for it to happen

16
Q

Proteins that act as biological catalysts

A

Enzymes

17
Q

The reactants of the enzymes

A

Substrates

18
Q

The substrates bind to the enzymes called the

A

Active site

19
Q

What are the active site and substrates referred to as?

A

A lock and key

20
Q

What affects the activity of an enzyme?

A

Temperature, pH, and regulatory molecules

Honors Biology (14 decks)

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