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Biology Chapter 2 test > Chapter 2 > Flashcards

Chapter 2 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Force of attraction between two Atoms that share a pair of electrons

A

Covalent bond

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2
Q

Particles located in the nucleus that have a positive charge

A

Protons

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3
Q

Particles located in the nucleus that do not have a charge

A

Neutrons

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4
Q

Particles located around the nucleus that has a negative charge

A

Electrons

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5
Q

Attraction between molecules of different substances

A

Adhesion

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6
Q

Attractions between molecules of the same substance

A

Cohesion

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7
Q

Week chemical bond between hydrogen Atoms in one molecule and negatively charged region of another molecule

A

Hydrogen bond

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8
Q

When molecules have an unequal distribution of charge

A

Polar

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9
Q

Substance that speeds up the rate of a chemical reaction

A

Catalyst

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10
Q

What is an example of a polar molecule

A

Water

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11
Q

Water fearing

A

Hydrophobic

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12
Q

Water loving

A

Hydrophilic

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13
Q

Chemical bonds are broken, Atoms are rearranged, and new bonds are formed

A

Chemical reactions

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14
Q

The amount of energy needed to start a chemical reaction is the reactions ……

A

Activation energy

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15
Q

An example of biological catalyst

A

Enzymes

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16
Q

What are examples of carbohydrates

A

Sugars, starch, cellulose

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17
Q

What elements are carbohydrates made of

A

C.H.O

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18
Q

What is the monomer of each carbohydrates

A

Monosaccharides

19
Q

Are carbohydrates soluble in water

A

Yes

20
Q

What are the functions of carbohydrates

A

Store and release energy

21
Q

What are examples of proteins

A

Amino acid, enzymes

22
Q

What are the elements of protein composed of

A

Carbon, hydrogen, oxygen, nitrogen

23
Q

What is the monomer of proteins

A

Amino acid

24
Q

Are proteins soluble in water

A

Yes

25
Q

What are the functions of proteins

A

Muscle contraction, transportation of substances, immunity, biological catalyst

26
Q

What are examples of lipid

A

Fats, oil’s, steroids, wax, triglycerides

27
Q

What elements are lipid composed of

A

Carbon, hydrogen, oxygen

28
Q

Are lipids soluble in water

A

No

29
Q

What are the functions of lipids

A

Long-term energy storage and insulation

30
Q

What are examples of nucleic acids

A

DNA, RNA

31
Q

What elements are nucleic acid’s composed of

A

Carbon, hydrogen, oxygen, potassium, nitrogen

32
Q

What is the monomer of nucleic acids

A

Nucleotides

33
Q

What are the functions of nucleic acids

A

Store genetic info in our cells

34
Q

The name of carbohydrates end in

A

-ose

35
Q

The name of enzymes end in

A

-ase

36
Q

Water molecules are polar with the

A

Oxygen side being slightly negative And the hydrogen side being slightly

37
Q

Substances that enter a chemical reaction are called

A

Reactants

38
Q

New substances produced by chemical reactions are called

A

Products

39
Q

In assets, the hydronium ion concentration is greater than or less than the hydroxide ion concentration

A

Greater than

40
Q

Chemicals that prevent a change in pH when an acid or base is added to a solution

A

Buffer

41
Q

Is water a good thermal buffer

A

Yes

42
Q

Why is water a good thermal buffer

A

Waters high specific heat

43
Q

Give an example of an enzyme name

A

Lactase

Biology Chapter 2 test (1 decks)

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