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Biology > Chapter 2 Test > Flashcards

Chapter 2 Test Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Water sample with a pH of 10 is considered what?

A

A base

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2
Q

Atoms have an equal number of?

A

Protons and electrons

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3
Q

Basic unit of matter?

A

Atom

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4
Q

What elements are carbohydrates made of?

A

Carbon, hydrogen, and oxygen

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5
Q

What ratio are carbohydrates elements

A

1:2:1

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6
Q

A glass of water is held together by

A

Hydrogen bonds

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7
Q

What are 3 functions of lipids?

A

Stores energy

Part of cell membrane

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8
Q

Atoms, same element, different count of neutrons

A

Isotopes

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9
Q

What are single sugars called?

A

Monosaccharides

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10
Q

Nucleotides consist of

A

Phosphate
Nitrogenous base?
5-carbon sugar?

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11
Q

Where are neutrons?

A

In the nucleus

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12
Q

Group of macromolecules that contain nitrogen, carbon, etc.

A

Proteins

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13
Q

Amino acids. One end has carboxyl the other has?

A

Amino group

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14
Q

What are the types of nucleic acids?

A

RNA & DNA

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15
Q

Energy needed to start reactions

A

Activation energy

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16
Q

Living things contain

A

Carbon

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17
Q

Chemical reaction

A

Reactants enter, product leaves

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18
Q

Endergonic

A

Not spontaneous
Uphill
Requires energy

19
Q

Proton have what kind of charge?

A

Positive

20
Q

Proteins that act as biological catalase

A

Enzyme

21
Q

4 things that cause protein to unravel

A

Temperature
pH
Pressure
Salt

22
Q

Gecko example crawling up walls uses what?

A

Van der Waals force

23
Q

Smallest unit of compounds

A

Molecule

24
Q

Substance that speeds up activation energy

A

Catalase

25
Q

Attraction of similar molecules

A

Cohesion

26
Q

Positively +negatively charged atoms

A

Ions

27
Q

1 or more electrons transferred from one atom to another

A

Ionic bonds

28
Q

Uneven distribution of molecules

A

Polar

29
Q

Electrons shared between atoms

A

Covalent bonds

30
Q

Substance dissolved in solvent to create solution

A

Solute

31
Q

Substance in which solute in dissolved

A

Solvent

32
Q

Pure substance with one atom?

A

Element

33
Q

Mixture between water and no dissolved

A

Suspension

34
Q

Substance formed

A

Compound

35
Q

Proton + electron =?

A

Mass #

36
Q

Center of cell is the

A

Nucleus

37
Q

Any compound that forms?

A

Acids

38
Q

Weak acids or bases that react with stronger ones

A

Buffer

39
Q

Mixture of evenly dissolved molecule substance

A

Solution

40
Q

What is the difference between carbon-14 and carbon-12

A

The number of neutrons

41
Q

3 isotope uses

A

Fossil age determination
Kills bacteria
Cures cancer?

42
Q

4 organic compounds

A

Lipids
Carbohydrates
Nucleic acid
Protein

43
Q

Earth is called what?

A

The Blue Planet

Biology (8 decks)

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