JCJC PRINCIPLES OF BIOLOGY
LECTURE EXAM 1 STUDY GUIDE
QUESTIONS AND ANSWERS
Mass number is equal to the number of - ANSWER-Protons + Neutrons
A pH of 5 is a/an___pH; whereas, a pH of 11 is a/an___pH - ANSWER-Acidic; Basic
(alkaline)
What is the difference between a covalent bond and an ionic bond? - ANSWER-
Covalent shares electrons as Ionic transfer electrons from one atom to another
List 4 properties of water that allow it to support some requirements of living
organisms. - ANSWER-a) Cohesion
b) Moderates temperature
c) Ice floats
d) Versatility as a solvent
What is an atom called when it loses or gains an electron(s)? - ANSWER-Ion
What is the monomer of a carbohydrate? Of a protein? Of a nucleic acid? -
ANSWER-Monosaccharide; Amino acid; Nucleotide
Vegetable oil, butter, lard, and steroids are examples of which type of biomolecule? -
ANSWER-Lipids
In which type of biomolecule would you find peptide bonds? - ANSWER-Proteins
What are the 4 types of biomolecules? - ANSWER-Carbohydrates, Lipids, Proteins,
Nucleic acids
Know the functions of the 4 types of biomolecules. - ANSWER-a) Carbohydrates -
Energy storage and structural
b) Lipids - Energy storage, cushioning, and insulation
c) Proteins - Energy storage, structural, enzymes, transport (many different
functions)
d) Nucleic Acids - Genetic information
Which category of biomolecule is always hydrophobic? - ANSWER-Lipids
Enzymes are a type of which biomolecule? - ANSWER-Proteins
Sucrose is what type of carbohydrate? - ANSWER-Disaccharide
Glucose is what type of a carbohydrate? - ANSWER-Monosaccharide
List 3 examples of a polysaccharide. - ANSWER-a) Starch
LECTURE EXAM 1 STUDY GUIDE
QUESTIONS AND ANSWERS
Mass number is equal to the number of - ANSWER-Protons + Neutrons
A pH of 5 is a/an___pH; whereas, a pH of 11 is a/an___pH - ANSWER-Acidic; Basic
(alkaline)
What is the difference between a covalent bond and an ionic bond? - ANSWER-
Covalent shares electrons as Ionic transfer electrons from one atom to another
List 4 properties of water that allow it to support some requirements of living
organisms. - ANSWER-a) Cohesion
b) Moderates temperature
c) Ice floats
d) Versatility as a solvent
What is an atom called when it loses or gains an electron(s)? - ANSWER-Ion
What is the monomer of a carbohydrate? Of a protein? Of a nucleic acid? -
ANSWER-Monosaccharide; Amino acid; Nucleotide
Vegetable oil, butter, lard, and steroids are examples of which type of biomolecule? -
ANSWER-Lipids
In which type of biomolecule would you find peptide bonds? - ANSWER-Proteins
What are the 4 types of biomolecules? - ANSWER-Carbohydrates, Lipids, Proteins,
Nucleic acids
Know the functions of the 4 types of biomolecules. - ANSWER-a) Carbohydrates -
Energy storage and structural
b) Lipids - Energy storage, cushioning, and insulation
c) Proteins - Energy storage, structural, enzymes, transport (many different
functions)
d) Nucleic Acids - Genetic information
Which category of biomolecule is always hydrophobic? - ANSWER-Lipids
Enzymes are a type of which biomolecule? - ANSWER-Proteins
Sucrose is what type of carbohydrate? - ANSWER-Disaccharide
Glucose is what type of a carbohydrate? - ANSWER-Monosaccharide
List 3 examples of a polysaccharide. - ANSWER-a) Starch
