Question 1

A compound that consists mainly of carbon and hydrogen is known as (a)_____________.

Accepted Answer

A)  polymer 
B)  hydrocarbon 
C)  hydrolyte 
D)  glucose 
E)  organic 
A)  polymer 
B)  hydrocarbon 
C)  hydrolyte 
D)  glucose 
E)  organic

Question 2

Match the molecules below with their functions.

-Active role in protein synthesis

Accepted Answer

A) Glycogen 
B) Cellulose 
C) Starch 
D) Phospholipid 
E) Wax
F)Steroid
G)Cholesterol
H)DNA
I)RNA 
A) Glycogen 
B) Cellulose 
C) Starch 
D) Phospholipid 
E) Wax
F)Steroid
G)Cholesterol
H)DNA
I)RNA

Question 3

Steroids ____.

Accepted Answer

A)  have no fatty-acid component 
B)  consist of three rings 
C)  have the same type of functional groups attached to them 
D)  are a specialized type of wax 
E)  are a specialized type of phospholipid 
A)  have no fatty-acid component 
B)  consist of three rings 
C)  have the same type of functional groups attached to them 
D)  are a specialized type of wax 
E)  are a specialized type of phospholipid

Question 4

The interaction of two or more polypeptide chains in a hemoglobin molecule is its ____ structure.

Accepted Answer

A)  primary 
B)  secondary 
C)  tertiary 
D)  quaternary 
E)  combined 
A)  primary 
B)  secondary 
C)  tertiary 
D)  quaternary 
E)  combined

Question 5

Glycogen is a polysaccharide used for energy storage by ____.

Accepted Answer

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

Question 6

Which feature is characteristic of all polysaccharides?

Accepted Answer

A)  Produced by hydrolysis reactions 
B)  Always branched chains 
C)  Fructose subunits 
D)  Only consisting of carbon, hydrogen, and oxygen atoms 
E)  Produced by condensation reactions 
A)  Produced by hydrolysis reactions 
B)  Always branched chains 
C)  Fructose subunits 
D)  Only consisting of carbon, hydrogen, and oxygen atoms 
E)  Produced by condensation reactions

Question 7

Choose the monomer corresponding to the polymer stated.
 
-Triglyceride

Accepted Answer

A) Glucose 
B) Nucleotide 
C) Fatty acid 
D) Amino acid 
A) Glucose 
B) Nucleotide 
C) Fatty acid 
D) Amino acid

Exam 3: Molecules of Life

A compound that consists mainly of carbon and hydrogen is known as (a)_____________.

Match the molecules below with their functions. -Active role in protein synthesis

Steroids ____.

The interaction of two or more polypeptide chains in a hemoglobin molecule is its ____ structure.

Glycogen is a polysaccharide used for energy storage by ____.

Which feature is characteristic of all polysaccharides?

Choose the monomer corresponding to the polymer stated. -Triglyceride

Invitation to Biology

Life's Chemical Bases

Cell Structure

Ground Rules of Metabolism

Where it Starts—Photosynthesis

How Cells Release Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information about Species

Life's Origin and Early Evolution

Viruses, Bacteria, and Archaea

Protists: The Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution: The Invertebrates

Animal Evolution: The Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive System

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters