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Biology Chapter 2 Review Flashcards | StudBud
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Biology Chapter 2 Review
Biology Chapter 2 Review
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A #review for #biology Chapter 2 information over #chemistryoflife
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Which type of bond deals with sharing electrons?
Covalent Bond
Van der Waals Forces
Ionic Bond
James Bond
2
What is an atom?
Smallest unit of an element
Largest unit of an element
Smallest unit of a protein
Largest unit of a protein
3
True or False: chemical & physical properties of compounds differ from the elements making them
False
True
4
What is a solute?
Substance in which it is dissolved in
Substance that is dissolved
5
What is a substance formed by two or more elements in definite proportions?
Mixture
Molecule
Element
Compound
6
Which subatomic particles are found in the nucleus?
Proton & Electron
Neutron & Electron
Proton & Neutron
7
Which branch of chemistry focuses on the study of carbon?
Inorganic Chemistry
Organic Chemistry
Molecular Chemistry
Biochemistry
8
What is a buffer?
Something that reacts with acids only
Something that avoids acids & bases
Something that reacts with acids & bases
Something that reacts with bases only
9
True or False: Van der Waals forces are as strong as ionic and covalent bonds.
True
False
10
What is the attraction between molecules of different substances?
Adhesion
Ionic
Covalent
Cohesion
11
What type of bond does water have?
Hydrogen
Covalent
Ionic
Van der Waals
12
What does the pH scale measure?
How soluble/acidic something is
How acidic/solvent a substance is
How acidic/basic a substance is
How soluble/basic a substance is
13
What are carbohydrates used for?
Sleeping
Protein
Fat Storage
Energy
14
How do catalysts help reaction rates?
Increase activation energy
Lower activation energy
Catalysts don't help reaction rates
Keeps activation energy stable
15
What charge does a proton have?
Neutral
Positive
Negative
16
What allows large bodies of water to absorb large amounts of heat with little temp change?
low heat capacity
high heat reaction
high heat capacity
low heat reaction
17
What is a solvent?
Substance in which something is dissolved in
Substance that is dissolved
18
What are isotopes called when they are unstable and break down over time?
Superactive
Hyperactive
Radiostatic
Radioactive
19
2H2 + 02 = 2H20 Label the reactant(s).
only 2H2
only O2
2H2O
2H2 & O2
20
What is the pH scale measured from?
0-10
0-12
0-14
0-16
21
What is the attraction between molecules of the same substance?
Covalent
Ionic
Adhesion
Cohesion
22
What is a substance that consists of only one type of atom?
Molecule
Element
Compound
Mixture
23
Which macromolecule is used to store genetic information?
Lipids
Nucleic Acids
Proteins
Carbohydrates
24
Which subatomic particle do chemical bonds deal with?
Neutron
Electron
Photon
Proton
25
What charge does an electron have?
Negative
Positive
Neutral
26
What charge does a neutron have?
Negative
Neutral
Positive
27
What does an isotope have more of?
Protons
Neutrons
Electrons
28
How many valence electrons does carbon have?
2
4
5
3
29
Which of the following is NOT a subatomic particle?
Electron
Neutron
Proton
Photon
30
2H2 + O2 = 2H2O Label the product(s).
only 2H2
only O2
2H2 & O2
2H2O
31
Which type of bond deals with transferring electrons from one atom to another?
Van der Waals Forces
Government Bond
Ionic Bond
Covalent Bond
32
How are isotopes identified?
By their number of electrons
By their atomic numbers
By their chemical symbols
By their mass numbers
33
What are proteins made of?
Polysaccharides
Monosaccharides
Amino Acids
Peptides
34
What are Van der Waals Forces?
forces involving sharing electrons
forces of intermolecular opposition
forces of intermolecular attraction
forces involving transfer of electrons
35
What else, other than carbohydrates, are used to store energy?
Proteins
Monomers
Nucleic Acids
Lipids
