Question 1

Plants store their excess carbohydrates in the form of ____.

Accepted Answer

A) cellulose 
B) starch 
C) glycogen 
D) sucrose 
E) galactose 
A) cellulose 
B) starch 
C) glycogen 
D) sucrose 
E) galactose

Question 2

Match between columns
                        Premises: atoms with more or less electrons than protons

Accepted Answer

The Answer of isotopes and atomic number and mass number is...

Question 3

Match between columns
                        Premises: substance that releases hydrogen ions in solution

Accepted Answer

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

Question 4

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 5

Match between columns
                        Premises: number of protons in the atomic nucleus

Accepted Answer

The Answer of mass number and isotopes and ions and is...

Question 6

Match between columns
                        Premises: cellulose

Accepted Answer

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

Question 7

Large polymers are formed from smaller subunits by which type of reaction?

Accepted Answer

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

Question 8

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 9

The chemical reactions that cells use to acquire and use energy to live, grow and reproduce are called ____.

Accepted Answer

A) hydrolysis 
B) condensation 
C) phosphorylation 
D) metabolism 
E) oxidation 
A) hydrolysis 
B) condensation 
C) phosphorylation 
D) metabolism 
E) oxidation

Question 10

Unsaturated fats ____.

Accepted Answer

A) are solid at room temperature 
B) have at least one double bond in their fatty acid tail 
C) are saturated with hydrogen atoms 
D) mainly come from animals 
E) consist of straight chain fatty acids 
A) are solid at room temperature 
B) have at least one double bond in their fatty acid tail 
C) are saturated with hydrogen atoms 
D) mainly come from animals 
E) consist of straight chain fatty acids

Question 11

A triglyceride molecule is made up of ____.

Accepted Answer

A) one glycerol and two fatty acids 
B) two fatty acids and two glycerols 
C) one fatty acid and three glycerols 
D) one glycerol and three fatty acids 
A) one glycerol and two fatty acids 
B) two fatty acids and two glycerols 
C) one fatty acid and three glycerols 
D) one glycerol and three fatty acids

Question 12

Nucleotides are monomers of ____.

Accepted Answer

A) complex lipids 
B) proteins 
C) polysaccharides 
D) nucleic acids 
E) cellulose 
A) complex lipids 
B) proteins 
C) polysaccharides 
D) nucleic acids 
E) cellulose

Question 13

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 14

All steroids have ____.

Accepted Answer

A) the same number of double bonds 
B) double bonds in the same positions 
C) four carbon rings 
D) the same functional groups 
E) the same number and positions of double bonds 
A) the same number of double bonds 
B) double bonds in the same positions 
C) four carbon rings 
D) the same functional groups 
E) the same number and positions of double bonds

Question 15

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 16

Two amino acids are bonded together to form a dipeptide by which type of reaction?

Accepted Answer

A) condensation 
B) oxidation reduction 
C) hydrolysis 
D) decomposition 
E) acid-base 
A) condensation 
B) oxidation reduction 
C) hydrolysis 
D) decomposition 
E) acid-base

Question 17

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 18

Match between columns
                        Premises: the bond in which electrons are shared

Accepted Answer

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

Question 19

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 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

Plants store their excess carbohydrates in the form of ____.

A uniform mixture is called a ____.

Large polymers are formed from smaller subunits by which type of reaction?

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

The chemical reactions that cells use to acquire and use energy to live, grow and reproduce are called ____.

Unsaturated fats ____.

A triglyceride molecule is made up of ____.

Nucleotides are monomers of ____.

A(n)____ is a protein monomer.

All steroids have ____.

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

Two amino acids are bonded together to form a dipeptide by which type of reaction?

When water molecules form into ice, ____.

A typical fat molecule has ____ fatty acid tails.

Carbon 14 radioisotopes decay into stable ____. Nitrogen 15 isotopes

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

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