Question 1

Which type of bonding allows the long, straight chains of cellulose to lock together tightly?

Accepted Answer

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

Question 2

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 C

Question 3

We can accurately determine the age of a rock or fossil by measuring its ____.

Accepted Answer

A) proton concentration 
B) electron concentration 
C) neutron concentration 
D) isotope concentration 
E) ion concentration 
A) proton concentration 
B) electron concentration 
C) neutron concentration 
D) isotope concentration 
E) ion concentration D

Question 4

The atomic number is determined by the number of ____.

Accepted Answer

A) protons 
B) neutrons 
C) electrons 
D) protons plus neutrons 
E) protons plus electrons 
A) protons 
B) neutrons 
C) electrons 
D) protons plus neutrons 
E) protons plus electrons

Question 5

Glycogen is a polysaccharide used for energy storage by ____.

Accepted Answer

A) plants 
B) animals 
C) protists 
D) bacteria 
E) archaea 
A) plants 
B) animals 
C) protists 
D) bacteria 
E) archaea

Question 6

Hydrophobic molecules are ____ water.

Accepted Answer

A) attracted by 
B) absorbed by 
C) repelled by 
D) mixed with 
E) polarized by 
A) attracted by 
B) absorbed by 
C) repelled by 
D) mixed with 
E) polarized by

Question 7

Match between columns
                        Premises: the bond that is easiest to break

Accepted Answer

The Answer of hydrogen and covalent and ionic is...

Question 8

Match between columns
                        Premises: solution that contains the same concentration of HS1U1P1+S1S1P0 ions as OHS1U1P1uf02dS1S1P0 ions

Accepted Answer

The Answer of acid and base and pH and neutral is...

Question 9

Match between columns
                        Premises: starch

Accepted Answer

The Answer of B and A and C and F is...

Question 10

Water molecules are attracted to one another because the ____.

Accepted Answer

A) slightly positive charge of the hydrogen atom from one molecule of water attracts the slightly negative charge of the oxygen atom from another molecule 
B) slightly negative charge of the hydrogen atom from one molecule of water attracts the slightly negative charge of the oxygen atom from another molecule 
C) slightly positive charge of the hydrogen atom attracts the oxygen within the same molecule of water, which leads to an increase in its polarity 
D) water molecules participate in non-polar covalent bonds, which increase the attraction of the molecules to each other 
E) water molecules bind to each other through their mutual attraction to ionic compounds 
A) slightly positive charge of the hydrogen atom from one molecule of water attracts the slightly negative charge of the oxygen atom from another molecule 
B) slightly negative charge of the hydrogen atom from one molecule of water attracts the slightly negative charge of the oxygen atom from another molecule 
C) slightly positive charge of the hydrogen atom attracts the oxygen within the same molecule of water, which leads to an increase in its polarity 
D) water molecules participate in non-polar covalent bonds, which increase the attraction of the molecules to each other 
E) water molecules bind to each other through their mutual attraction to ionic compounds

Question 11

Match between columns
                        Premises: phospholipid

Accepted Answer

The Answer of G and B and F and E is...

Question 12

In a cell membrane, the phospholipid heads are ____.

Accepted Answer

A) hydrophobic 
B) nonpolar 
C) dissolved in the cell's watery interior 
D) sandwiched between the phospholipid tails 
E) formed by fatty acids 
A) hydrophobic 
B) nonpolar 
C) dissolved in the cell's watery interior 
D) sandwiched between the phospholipid tails 
E) formed by fatty acids

Question 13

When a protein denatures, which type of bonding is affected?

Accepted Answer

A) covalent 
B) peptide 
C) ionic 
D) hydrogen 
E) metallic 
A) covalent 
B) peptide 
C) ionic 
D) hydrogen 
E) metallic

Question 14

An atom that carries a charge is called a(n)____.

Accepted Answer

A) ion 
B) molecule 
C) compound 
D) element 
E) microelement 
A) ion 
B) molecule 
C) compound 
D) element 
E) microelement

Question 15

A protein that is linked to a carbohydrate is known as a ____.

Accepted Answer

A) glycoprotein 
B) lipoprotein 
C) fibrous proteins 
D) denatured proteins 
E) prions 
A) glycoprotein 
B) lipoprotein 
C) fibrous proteins 
D) denatured proteins 
E) prions

Question 16

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 17

Which bond is weakest?

Accepted Answer

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

Question 18

The breakdown of large molecules by enzymes and the addition of water is known as a ____ reaction.

Accepted Answer

A) oxidation 
B) reduction 
C) condensation 
D) hydrolysis 
E) decarboxylation 
A) oxidation 
B) reduction 
C) condensation 
D) hydrolysis 
E) decarboxylation

Question 19

The human body requires about ____ of fat each day to stay healthy.

Accepted Answer

A) 1 teaspoon 
B) 4 teaspoons 
C) 1 tablespoon 
D) 4 tablespoons 
E) 1 cup 
A) 1 teaspoon 
B) 4 teaspoons 
C) 1 tablespoon 
D) 4 tablespoons 
E) 1 cup

Question 20

Match between columns
                        Premises: forms of an element that differ in the number of neutrons their atoms carry

Accepted Answer

The Answer of isotopes and ions and radioisotope and atomic is...

Exam 2: Molecules of Life

Which type of bonding allows the long, straight chains of cellulose to lock together tightly?

A nucleotide consists of ____.

We can accurately determine the age of a rock or fossil by measuring its ____.

The atomic number is determined by the number of ____.

Glycogen is a polysaccharide used for energy storage by ____.

Hydrophobic molecules are ____ water.

Water molecules are attracted to one another because the ____.

In a cell membrane, the phospholipid heads are ____.

When a protein denatures, which type of bonding is affected?

An atom that carries a charge is called a(n)____.

A protein that is linked to a carbohydrate is known as a ____.

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

Which bond is weakest?

The breakdown of large molecules by enzymes and the addition of water is known as a ____ reaction.

The human body requires about ____ of fat each day to stay healthy.

Invitation to Biology

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the 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

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

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