Question 1

A lipid _____________________ is the most common conformation of the membrane of living systems.

Accepted Answer

The answer of A lipid _____________________ is the most common...

Question 2

Which type of lipid is composed of long-chain fatty acids attached to long-chain alcohols?​

Accepted Answer

A)  ​triglycerides 
B)  ​phospholipids 
C)  ​sterols 
D)  ​waxes 
E)  ​most neutral fats 
A)  ​triglycerides 
B)  ​phospholipids 
C)  ​sterols 
D)  ​waxes 
E)  ​most neutral fats

Question 3

The following are basic building blocks of biopolymers. Match the building blocks with the statements below.​
-the basic unit of cellulose

Accepted Answer

A) ​amino acid 
B) ​glucose 
C) ​glycerol 
D) ​fatty acid 
E) ​nucleotide 
A) ​amino acid 
B) ​glucose 
C) ​glycerol 
D) ​fatty acid 
E) ​nucleotide

Question 4

Choose the monomer with its polymer.​

-responsible for sexual development

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 5

Explain why vigorous exercise in warm weather could be hazardous to your enzymes.

Accepted Answer

For enzymes, a class of proteins, to fun

Question 6

The following are chemical functional groups that may be part of a biologically active molecule. Answer the question by
matching the items with the most appropriate group. ​
-The group that is acidic

Accepted Answer

A) ​-COOH 
B) ​-CH₃ 
C) ​-NH₂ 
D) ​-OH 
E) ​  
F)​-PO43-
G)​-CHO 
A) ​-COOH 
B) ​-CH₃ 
C) ​-NH₂ 
D) ​-OH 
E) ​  
F)​-PO43-
G)​-CHO

Question 7

What may be a result of the denaturation of proteins?​

Accepted Answer

A)  ​formation of hydrogen bonds 
B)  ​loss of three-dimensional structure 
C)  ​removal of R groups from amino acids 
D)  ​no change in enzyme activity 
E)  formation of covalent bonds​ 
A)  ​formation of hydrogen bonds 
B)  ​loss of three-dimensional structure 
C)  ​removal of R groups from amino acids 
D)  ​no change in enzyme activity 
E)  formation of covalent bonds​

Question 8

Fats are major constituents of ____.

Accepted Answer

A)  ​proteins 
B)  genes 
C)  photosynthesis 
D)  cell membranes 
E)  nucleic acids 
A)  ​proteins 
B)  genes 
C)  photosynthesis 
D)  cell membranes 
E)  nucleic acids

Question 9

A(n) _____________________ is a term given to a macromolecule (large molecule) made up of individual subunits.

Accepted Answer

The answer of A(n) _____________________ is a term given to...

Question 10

A denatured protein has lost its _____________________.

Accepted Answer

3D structu

Question 11

The sugars in DNA and RNA ____.

Accepted Answer

A)  ​have a different number of carbon atoms 
B)  have the same structural formulas 
C)  are the two components of sucrose 
D)  are monosaccharides 
E)  are disaccharides 
A)  ​have a different number of carbon atoms 
B)  have the same structural formulas 
C)  are the two components of sucrose 
D)  are monosaccharides 
E)  are disaccharides

Question 12

The following are basic building blocks of biopolymers. Match the building blocks with the statements below.​
-the basic unit of starch

Accepted Answer

A) ​amino acid 
B) ​glucose 
C) ​glycerol 
D) ​fatty acid 
E) ​nucleotide 
A) ​amino acid 
B) ​glucose 
C) ​glycerol 
D) ​fatty acid 
E) ​nucleotide

Question 13

Which lipid type does not have fatty acid tails?​

Accepted Answer

A)  ​phospholipids 
B)  ​polysaccharides 
C)  ​unsaturated fats 
D)  ​steroids 
E)  saturated fats​ 
A)  ​phospholipids 
B)  ​polysaccharides 
C)  ​unsaturated fats 
D)  ​steroids 
E)  saturated fats​

Question 14

The following are chemical functional groups that may be part of a biologically active molecule. Answer the question by
matching the items with the most appropriate group. ​
-The group typical of energy carriers such as ATP

Accepted Answer

A) ​-COOH 
B) ​-CH₃ 
C) ​-NH₂ 
D) ​-OH 
E) ​  
F)​-PO43-
G)​-CHO 
A) ​-COOH 
B) ​-CH₃ 
C) ​-NH₂ 
D) ​-OH 
E) ​  
F)​-PO43-
G)​-CHO

Question 15

Polysaccharides ____.

Accepted Answer

A)  ​are composed of three linked monosaccharides 
B)  contain only straight monomer chains 
C)  are always made of glucose molecules 
D)  may be insoluble and difficult to break down 
E)  are formed by cleavage reactions 
A)  ​are composed of three linked monosaccharides 
B)  contain only straight monomer chains 
C)  are always made of glucose molecules 
D)  may be insoluble and difficult to break down 
E)  are formed by cleavage reactions

Question 16

The following are basic building blocks of biopolymers. Match the building blocks with the statements below.​
-the basic unit of DNA

Accepted Answer

A) ​amino acid 
B) ​glucose 
C) ​glycerol 
D) ​fatty acid 
E) ​nucleotide 
A) ​amino acid 
B) ​glucose 
C) ​glycerol 
D) ​fatty acid 
E) ​nucleotide

Question 17

Which feature is characteristic of all polysaccharides?

Accepted Answer

A)  ​energy usage 
B)  always branched chains 
C)  fructose subunits 
D)  only consisting of carbon, hydrogen, and oxygen atoms 
E)  produced by condensation reactions 
A)  ​energy usage 
B)  always branched chains 
C)  fructose subunits 
D)  only consisting of carbon, hydrogen, and oxygen atoms 
E)  produced by condensation reactions

Question 18

Cholesterol ____.

Accepted Answer

A)  ​has a rigid backbone of four nitrogen rings 
B)  is the most common steroid in animal tissue​ 
C)  is a lipid with a fatty-acid component​ 
D)  ​is needed to inhibit sexual development and maturity 
E)  is needed to lubricate feathers​ 
A)  ​has a rigid backbone of four nitrogen rings 
B)  is the most common steroid in animal tissue​ 
C)  is a lipid with a fatty-acid component​ 
D)  ​is needed to inhibit sexual development and maturity 
E)  is needed to lubricate feathers​

Question 19

Choose the monomer with its polymer.​

-DNA

Accepted Answer

A) ​glucose 
B) ​nucleotide 
C) ​fatty acid 
D) ​amino acid 
A) ​glucose 
B) ​nucleotide 
C) ​fatty acid 
D) ​amino acid

Question 20

An -OH group is a(n) ____ group.

Accepted Answer

A)  ​carboxyl 
B)  hydroxyl 
C)  amino 
D)  ​methyl 
E)  carbonyl 
A)  ​carboxyl 
B)  hydroxyl 
C)  amino 
D)  ​methyl 
E)  carbonyl

Exam 3: Molecules of Life

A lipid _____________________ is the most common conformation of the membrane of living systems.

Which type of lipid is composed of long-chain fatty acids attached to long-chain alcohols?​

The following are basic building blocks of biopolymers. Match the building blocks with the statements below.​ -the basic unit of cellulose

Choose the monomer with its polymer.​ -responsible for sexual development

Explain why vigorous exercise in warm weather could be hazardous to your enzymes.

The following are chemical functional groups that may be part of a biologically active molecule. Answer the question by matching the items with the most appropriate group. ​ -The group that is acidic

What may be a result of the denaturation of proteins?​

Fats are major constituents of ____.

A(n) _____________________ is a term given to a macromolecule (large molecule) made up of individual subunits.

A denatured protein has lost its _____________________.

The sugars in DNA and RNA ____.

The following are basic building blocks of biopolymers. Match the building blocks with the statements below.​ -the basic unit of starch

Which lipid type does not have fatty acid tails?​

The following are chemical functional groups that may be part of a biologically active molecule. Answer the question by matching the items with the most appropriate group. ​ -The group typical of energy carriers such as ATP

Polysaccharides ____.

The following are basic building blocks of biopolymers. Match the building blocks with the statements below.​ -the basic unit of DNA

Which feature is characteristic of all polysaccharides?

Cholesterol ____.

Choose the monomer with its polymer.​ -DNA

An -OH group is a(n) ____ group.

Invitation to Biology

Lifes Chemical Basis

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

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

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Filters

Which type of lipid is composed of long-chain fatty acids attached to long-chain alcohols?

The following are basic building blocks of biopolymers. Match the building blocks with the statements below. -the basic unit of cellulose

Choose the monomer with its polymer. -responsible for sexual development

The following are chemical functional groups that may be part of a biologically active molecule. Answer the question by matching the items with the most appropriate group. -The group that is acidic

What may be a result of the denaturation of proteins?

The following are basic building blocks of biopolymers. Match the building blocks with the statements below. -the basic unit of starch

Which lipid type does not have fatty acid tails?

The following are chemical functional groups that may be part of a biologically active molecule. Answer the question by matching the items with the most appropriate group. -The group typical of energy carriers such as ATP

The following are basic building blocks of biopolymers. Match the building blocks with the statements below. -the basic unit of DNA

Choose the monomer with its polymer. -DNA