Question 1

Which food product would likely contain the largest amount of unsaturated fat?

Accepted Answer

A)  butter 
B)  lard 
C)  cream 
D)  olives 
E)  cheese 
A)  butter 
B)  lard 
C)  cream 
D)  olives 
E)  cheese

Question 2

​A typical fat molecule has ____ fatty acid tails.

Accepted Answer

A)  one​ 
B)  ​two 
C)  ​three 
D)  ​four 
E)  ​five 
A)  one​ 
B)  ​two 
C)  ​three 
D)  ​four 
E)  ​five

Question 3

A uniform mixture is called a ____.​

Accepted Answer

A)  ​concentration 
B)  ​salt 
C)  ​solute 
D)  ​solution 
E)  ​solvent 
A)  ​concentration 
B)  ​salt 
C)  ​solute 
D)  ​solution 
E)  ​solvent

Question 4

The positively charged ion, potassium, and the negatively charged ion, fluoride, will form what kind of bond?​

Accepted Answer

A)  ​ionic 
B)  ​polar covalent 
C)  ​nonpolar covalent 
D)  ​hydrogen 
E)  ​isotonic 
A)  ​ionic 
B)  ​polar covalent 
C)  ​nonpolar covalent 
D)  ​hydrogen 
E)  ​isotonic

Question 5

When water molecules form into ice, ____.​

Accepted Answer

A)  the water molecules jiggle more​ 
B)  ​their structure becomes less rigid 
C)  ​the water molecules pack less densely 
D)  ​hydrogen bonds between water molecules readily break 
E)  ​evaporation of water molecules happens more readily 
A)  the water molecules jiggle more​ 
B)  ​their structure becomes less rigid 
C)  ​the water molecules pack less densely 
D)  ​hydrogen bonds between water molecules readily break 
E)  ​evaporation of water molecules happens more readily

Question 6

a(n. ____ is a type of chemical bond in which a strong mutual attraction forms between ions of opposite charge.​

Accepted Answer

A)  ​hydrogen bond 
B)  ​nonpolar bond 
C)  ​polar bond 
D)  ​covalent bond 
E)  ​ionic bond 
A)  ​hydrogen bond 
B)  ​nonpolar bond 
C)  ​polar bond 
D)  ​covalent bond 
E)  ​ionic bond

Question 7

Nearly all of life's chemistry occurs near a pH range of ____.

Accepted Answer

A)  1-2 
B)  3-4 
C)  5-6 
D)  7-8 
E)  9-10 
A)  1-2 
B)  3-4 
C)  5-6 
D)  7-8 
E)  9-10

Question 8

a(n. ____ is a protein monomer.​

Accepted Answer

A)  nucleotide​ 
B)  ​monosaccharide 
C)  ​simple sugar 
D)  ​amino acid 
E)  ​ribose 
A)  nucleotide​ 
B)  ​monosaccharide 
C)  ​simple sugar 
D)  ​amino acid 
E)  ​ribose

Question 9

Glucose dissolves in water because it ____.

Accepted Answer

A)  ionizes 
B)  is a polysaccharide 
C)  is polar and forms many hydrogen bonds with water molecules 
D)  has a very reactive primary structure 
E)  is an isotope 
A)  ionizes 
B)  is a polysaccharide 
C)  is polar and forms many hydrogen bonds with water molecules 
D)  has a very reactive primary structure 
E)  is an isotope

Question 10

A nucleotide consists of ____.

Accepted Answer

A)  a five-carbon sugar, a nitrogenous acid, and a phosphate group 
B)  a six-carbon sugar, a nitrogenous base, and a phosphate group 
C)  a five-carbon sugar, a nitrogenous base, and a phosphate group 
D)  a six-carbon sugar, a nitrogenous acid, and a phosphate group 
E)  a four-carbon sugar, a nitrogenous acid, and a phosphate group 
A)  a five-carbon sugar, a nitrogenous acid, and a phosphate group 
B)  a six-carbon sugar, a nitrogenous base, and a phosphate group 
C)  a five-carbon sugar, a nitrogenous base, and a phosphate group 
D)  a six-carbon sugar, a nitrogenous acid, and a phosphate group 
E)  a four-carbon sugar, a nitrogenous acid, and a phosphate group

Question 11

Carbon has an atomic number of 6. Carbon 14 has _____.

Accepted Answer

A)  6 neutrons and 6 protons 
B)  6 neutrons and 8 protons 
C)  8 neutrons and 6 protons 
D)  14 neutrons and 6 protons 
E)  14 protons and 6 neutrons 
A)  6 neutrons and 6 protons 
B)  6 neutrons and 8 protons 
C)  8 neutrons and 6 protons 
D)  14 neutrons and 6 protons 
E)  14 protons and 6 neutrons

Question 12

Glucose monomers linked into a highly branched chain make up ____.​

Accepted Answer

A)  glycogen​ 
B)  ​cellulose 
C)  ​fructose 
D)  ​starch 
E)  ​sucrose 
A)  glycogen​ 
B)  ​cellulose 
C)  ​fructose 
D)  ​starch 
E)  ​sucrose

Question 13

The bond in table salt (NaCl) is ____.​

Accepted Answer

A)  polar​ 
B)  ​ionic 
C)  ​covalent 
D)  double​ 
E)  ​nonpolar 
A)  polar​ 
B)  ​ionic 
C)  ​covalent 
D)  double​ 
E)  ​nonpolar

Question 14

Matching
​Match the following terms to the correct description.
-​isotope with an unstable nucleus
A)​mass number
B)​atomic number
C)​radioisotope
D)​isotopes
E)​ions

Accepted Answer

The answer of Matching
​Match the following terms to the correct...

Question 15

Which type of chemical bond is found within a water molecule?

Accepted Answer

A)  hydrogen 
B)  ionic 
C)  polar covalent 
D)  nonpolar covalent 
E)  triple 
A)  hydrogen 
B)  ionic 
C)  polar covalent 
D)  nonpolar covalent 
E)  triple

Question 16

The following are types of chemical bonds. Match these to the correct description.
-the bond that gives water special properties
A)hydrogen
B)cohesion
C)evaporation

Accepted Answer

The answer of The following are types of chemical bonds....

Question 17

Tracers are used in what form of medical test?​

Accepted Answer

A)  PET scans​ 
B)  ​CT scans 
C)  ​sonograms 
D)  ​x-rays 
E)  ​MRI 
A)  PET scans​ 
B)  ​CT scans 
C)  ​sonograms 
D)  ​x-rays 
E)  ​MRI

Question 18

Oxygen has an atomic number of 8. This means that oxygen has ____.

Accepted Answer

A)  eight electrons in its outer most shell 
B)  eight neutrons in its nucleus 
C)  four protons and four neutrons in its nucleus 
D)  eight protons in its nucleus 
E)  eight protons and eight neutrons in its nucleus 
A)  eight electrons in its outer most shell 
B)  eight neutrons in its nucleus 
C)  four protons and four neutrons in its nucleus 
D)  eight protons in its nucleus 
E)  eight protons and eight neutrons in its nucleus

Question 19

Fats that contain ____ double bonds are liquids at room temperature, whereas fats that contain ____ double bonds are solids at room temperature.​

Accepted Answer

A)  ​trans; cis 
B)  ​cis; trans 
C)  ​hydrogenated; partially hydrogenated 
D)  ​partially hydrogenated; hydrogenated 
E)  ​unsaturated; saturated 
A)  ​trans; cis 
B)  ​cis; trans 
C)  ​hydrogenated; partially hydrogenated 
D)  ​partially hydrogenated; hydrogenated 
E)  ​unsaturated; saturated

Question 20

Carbon 14 radioisotopes decay into stable ____.​ nitrogen 15 isotopes

Accepted Answer

A)  carbon 13 isotopes​ 
B)  ​nitrogen atoms 
C)  carbon atoms​ 
D)  ​nitrogen 15 isotopes 
E)  ​sodium atoms 
A)  carbon 13 isotopes​ 
B)  ​nitrogen atoms 
C)  carbon atoms​ 
D)  ​nitrogen 15 isotopes 
E)  ​sodium atoms

Exam 2: Molecules of Life

Which food product would likely contain the largest amount of unsaturated fat?

​A typical fat molecule has ____ fatty acid tails.

A uniform mixture is called a ____.​

The positively charged ion, potassium, and the negatively charged ion, fluoride, will form what kind of bond?​

When water molecules form into ice, ____.​

a(n. ____ is a type of chemical bond in which a strong mutual attraction forms between ions of opposite charge.​

Nearly all of life's chemistry occurs near a pH range of ____.

a(n. ____ is a protein monomer.​

Glucose dissolves in water because it ____.

A nucleotide consists of ____.

Carbon has an atomic number of 6. Carbon 14 has _____.

Glucose monomers linked into a highly branched chain make up ____.​

The bond in table salt (NaCl) is ____.​

Matching ​Match the following terms to the correct description. -​isotope with an unstable nucleus A)​mass number B)​atomic number C)​radioisotope D)​isotopes E)​ions

Which type of chemical bond is found within a water molecule?

The following are types of chemical bonds. Match these to the correct description. -the bond that gives water special properties A)hydrogen B)cohesion C)evaporation

Tracers are used in what form of medical test?​

Oxygen has an atomic number of 8. This means that oxygen has ____.

Fats that contain ____ double bonds are liquids at room temperature, whereas fats that contain ____ double bonds are solids at room temperature.​

Carbon 14 radioisotopes decay into stable ____.​ nitrogen 15 isotopes

Invitation to Biology

Cell Structure

Energy and Metabolism

Photosynthesis

Releasing Chemical Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

A typical fat molecule has ____ fatty acid tails.

A uniform mixture is called a ____.

The positively charged ion, potassium, and the negatively charged ion, fluoride, will form what kind of bond?

When water molecules form into ice, ____.

a(n. ____ is a type of chemical bond in which a strong mutual attraction forms between ions of opposite charge.

a(n. ____ is a protein monomer.

Glucose monomers linked into a highly branched chain make up ____.

The bond in table salt (NaCl) is ____.

Matching Match the following terms to the correct description. -isotope with an unstable nucleus A)mass number B)atomic number C)radioisotope D)isotopes E)ions

Tracers are used in what form of medical test?

Fats that contain double bonds are liquids at room temperature, whereas fats that contain double bonds are solids at room temperature.

Carbon 14 radioisotopes decay into stable ____. nitrogen 15 isotopes