Chemistry In Biology Flashcards

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1
Q

What is the term for two or more atoms bonded together?

A

Compound

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2
Q

How are chemical bonds made?

A

By the opposite attractions between electrons and protons

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3
Q

What is the term for water’s property that lets it stick to itself?

A

Cohesive

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4
Q

When ice melts it turns from a solid to a liquid - what kind of change is that?

A

A physical change

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5
Q

What is the term for a chemical bond where electrons are shared?

A

Covalent Bond

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6
Q

What is the overall charge for an atom?

A

Neutral

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7
Q

What is the term for the stuff everything is made of?

A

Matter

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8
Q

Where are electrons found in an atom?

A

Floating around the nucleus

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9
Q

What is the term for a chemical bond where electrons are completely taken?

A

Ionic Bond

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10
Q

What is the term for something that speeds up any chemical reaction?

A

Catalyst

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11
Q

What is the term for something that speeds up a reaction in living things?

A

Enzyme

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12
Q

What is the term for the building block of matter?

A

Atom

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13
Q

What is the perm for water’s property that lets it stick to other things?

A

Adhesive

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14
Q

What is the term for a bond that is caused by negative and positive sides of water molecules?

A

Hydrogen bond

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15
Q

Is Coke a heterogenous or homogeneous mixture?

A

Homogeneous

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16
Q

Is a fruit salad a heterogeneous or homogeneous mixture?

A

Heterogeneous

17
Q

What element is in ALL organic molecules?

A

Carbon

18
Q

What type of bond is the STRONGEST at the atomic level?

A

Covalent bond

19
Q

If you eat something amylase will break down the sugar in your saliva and then will evolve into carbon dioxide - what is the catalyst?

A

The Amylase

20
Q

Is an element MOST like a compound or atom?

A

Atom

21
Q

What is the percent of water that makes up humans?

A

70%

22
Q

What is the symbol and charge of:

Neutrons

A

Neutral 0 with / trough it

23
Q

What is the symbol and the charge of electrons?

A

Negative (-)

24
Q

What is the symbol and the charge for protons?

A

Positive (+)

25
Q

What is the order of the lowest density to the highest density of steel, water, ice?

A

Ice, water, steel

26
Q

Be able to identify the positive side and the negative side of the water molecule

A

See Mrs. K for help

27
Q

Be able to label the solvent and solute of a picture

A

Use your notes or see Mrs.K