Question 1

Which type of chemical reaction combines reactants to produce larger products?

Accepted Answer

A) synthesis 
B) decomposition 
C) potential 
D) exchange 
E) activated 
A) synthesis 
B) decomposition 
C) potential 
D) exchange 
E) activated

Question 2

Which of the following carbohydrates is a polysaccharide?

Accepted Answer

A) ribose 
B) lactose 
C) glycogen 
D) maltose 
E) galactose 
A) ribose 
B) lactose 
C) glycogen 
D) maltose 
E) galactose

Question 3

Describe a hydrogen bond.

Accepted Answer

Hydrogen bonds form between a

Question 4

In a polar covalent bond,the atom that has the most electronegativity will have a

Accepted Answer

A) full negative charge (-1). 
B) full positive charge (+1). 
C) partial negative charge. 
D) partial positive charge. 
E) neutral charge. 
A) full negative charge (-1). 
B) full positive charge (+1). 
C) partial negative charge. 
D) partial positive charge. 
E) neutral charge.

Question 5

Which type of chemical reaction breaks larger reactants into smaller products?

Accepted Answer

A) synthesis 
B) decomposition 
C) potential 
D) exchange 
E) activated 
A) synthesis 
B) decomposition 
C) potential 
D) exchange 
E) activated

Question 6

Which of the following describes the major significance of the element nitrogen in the human body?

Accepted Answer

A) The ionized form makes body fluids acidic. 
B) The ionized form is most plentiful anion in extracellular fluid. 
C) The ionized form is needed for action of many enzymes. 
D) It is a component of all proteins and nucleic acids. 
E) The ionized form is most plentiful cation in extracellular fluid. 
A) The ionized form makes body fluids acidic. 
B) The ionized form is most plentiful anion in extracellular fluid. 
C) The ionized form is needed for action of many enzymes. 
D) It is a component of all proteins and nucleic acids. 
E) The ionized form is most plentiful cation in extracellular fluid.

Question 7

Define mixture and then distinguish between the three types of mixtures called Solutions ,colloids and suspensions.

Accepted Answer

A mixture is a combination of elements o

Question 8

Which of the following is a polysaccharide that serves as a storage form of energy in muscle and liver cells?

Accepted Answer

A) cellulose 
B) ribose 
C) lipids 
D) glucose 
E) glycogen 
A) cellulose 
B) ribose 
C) lipids 
D) glucose 
E) glycogen

Question 9

Which of the following carbohydrates is a disaccharide?

Accepted Answer

A) ribose 
B) lactose 
C) galactose 
D) glycogen 
E) cellulose 
A) ribose 
B) lactose 
C) galactose 
D) glycogen 
E) cellulose

Question 10

Specific arrangements of atoms within an organic molecule that confer characteristic chemical properties upon that molecule are called

Accepted Answer

A) hydrocarbon chains. 
B) polymers. 
C) carbon skeleton. 
D) functional groups. 
E) isomers. 
A) hydrocarbon chains. 
B) polymers. 
C) carbon skeleton. 
D) functional groups. 
E) isomers.

Question 11

All of the following are characteristics of anabolism EXCEPT:

Accepted Answer

A) It involves synthesizing new biomolecules. 
B) It primarily involves endergonic reactions. 
C) It releases large amounts of energy. 
D) An example of anabolism is linking amino acids together to form proteins. 
E) An example is the formation of two ammonia molecules from one nitrogen molecule and three hydrogen molecules. 
A) It involves synthesizing new biomolecules. 
B) It primarily involves endergonic reactions. 
C) It releases large amounts of energy. 
D) An example of anabolism is linking amino acids together to form proteins. 
E) An example is the formation of two ammonia molecules from one nitrogen molecule and three hydrogen molecules.

Question 12

Which of the following substances has a pH closest to 7.0?

Accepted Answer

A) lye 
B) vaginal fluid 
C) gastric juice 
D) cerebrospinal fluid 
E) milk of magnesia 
A) lye 
B) vaginal fluid 
C) gastric juice 
D) cerebrospinal fluid 
E) milk of magnesia

Question 13

Which of the following is a general term used to refer to the sum of all the chemical reactions occurring in the body?

Accepted Answer

A) anabolism 
B) catabolism 
C) metabolism 
D) catalysis 
E) homeostasis 
A) anabolism 
B) catabolism 
C) metabolism 
D) catalysis 
E) homeostasis

Question 14

Vitamin D is synthesized from cholesterol.What is true about Vitamin D?

Accepted Answer

A) Vitamin D is water soluble 
B) Vitamin D is fat soluble 
C) Vitamin D is not soluble in fat or water 
D) Vitamin D is soluble in both fat and water 
A) Vitamin D is water soluble 
B) Vitamin D is fat soluble 
C) Vitamin D is not soluble in fat or water 
D) Vitamin D is soluble in both fat and water

Question 15

If there is 24% Adenine present in a DNA helix,how much thymine would be present?

Accepted Answer

A) 12% thymine 
B) 24% thymine 
C) 26% thymine 
D) 52% thymine 
E) 75% thymine 
A) 12% thymine 
B) 24% thymine 
C) 26% thymine 
D) 52% thymine 
E) 75% thymine

Question 16

What region of an atom contains the protons and neutrons?

Accepted Answer

A) cloud 
B) nucleus 
C) element 
D) ring 
E) shell 
A) cloud 
B) nucleus 
C) element 
D) ring 
E) shell

Question 17

This type of protein is involved with shortening of muscle cells to produce movement.

Accepted Answer

A) contractile 
B) structural 
C) regulatory 
D) catalytic 
E) transport 
A) contractile 
B) structural 
C) regulatory 
D) catalytic 
E) transport

Question 18

Which of the following describes the major significance of the element carbon in the human body?

Accepted Answer

A) ionized form makes body fluids acidic 
B) constituent of water 
C) forms backbone of all organic molecules 
D) required to harden the structure of bones and teeth 
E) ionized form is the part of hemoglobin that carries oxygen 
A) ionized form makes body fluids acidic 
B) constituent of water 
C) forms backbone of all organic molecules 
D) required to harden the structure of bones and teeth 
E) ionized form is the part of hemoglobin that carries oxygen

Question 19

A chemical reaction involves interactions between the _____ of two different atoms.

Accepted Answer

A) neutrons 
B) protons 
C) isotopes 
D) valence electrons 
E) ions 
A) neutrons 
B) protons 
C) isotopes 
D) valence electrons 
E) ions

Question 20

In laboratory,Sudan IV is used to test for the presence of hydrophobic substances in food.Which organic molecule would exhibit a positive reaction with Sudan IV?

Accepted Answer

A) Lipids 
B) Nucleic Acids 
C) Carbohydrates 
D) Globular proteins 
A) Lipids 
B) Nucleic Acids 
C) Carbohydrates 
D) Globular proteins

Exam 2: The Chemical Level of Organization

Which type of chemical reaction combines reactants to produce larger products?

Which of the following carbohydrates is a polysaccharide?

Describe a hydrogen bond.

In a polar covalent bond,the atom that has the most electronegativity will have a

Which type of chemical reaction breaks larger reactants into smaller products?

Which of the following describes the major significance of the element nitrogen in the human body?

Define mixture and then distinguish between the three types of mixtures called Solutions ,colloids and suspensions.

Which of the following is a polysaccharide that serves as a storage form of energy in muscle and liver cells?

Which of the following carbohydrates is a disaccharide?

Specific arrangements of atoms within an organic molecule that confer characteristic chemical properties upon that molecule are called

All of the following are characteristics of anabolism EXCEPT:

Which of the following substances has a pH closest to 7.0?

Which of the following is a general term used to refer to the sum of all the chemical reactions occurring in the body?

Vitamin D is synthesized from cholesterol.What is true about Vitamin D?

If there is 24% Adenine present in a DNA helix,how much thymine would be present?

What region of an atom contains the protons and neutrons?

This type of protein is involved with shortening of muscle cells to produce movement.

Which of the following describes the major significance of the element carbon in the human body?

A chemical reaction involves interactions between the _____ of two different atoms.

In laboratory,Sudan IV is used to test for the presence of hydrophobic substances in food.Which organic molecule would exhibit a positive reaction with Sudan IV?

An Introduction to the Human Body

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscular Tissue

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor, and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: the Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Nutrition

The Urinary System

Fluid, Electrolyte, and Acidbase Homeostasis

The Reproductive Systems

Development and Inheritance

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