Bio 100 UMaine Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
How would you define biology? - CORRECT ANSWER - The study of living things
How do biologists study a problem, what do they use? - CORRECT ANSWER - The
scientific method
What is the definition for each of these levels? Ex. Biosphere, ecosystem, cells, organelles -
CORRECT ANSWER - Ecology
What are some key features of the principle of evolution? - CORRECT ANSWER -
Overarching theme in biology, makes sense of everything we know about living organisms
What specific feature are characteristics of all cells? - CORRECT ANSWER - Enclosed
membrane, use DNA as their genetic information
What is the difference between a eukaryotic cell and a prokaryotic cell? - CORRECT
ANSWER - Eukaryotic Cell: Has a membrane bound nucleus, usually are part of multiple cell
organisms, larger and more complex, typically have more organelles
Prokaryotic Cell: Lack a membrane bound nucleus, typically part of unicellular organisms,
smaller and less complex.
What types of organisms are included within the prokaryotes? - CORRECT ANSWER -
Prokaryotic: Bacteria
Eukaryotic: Plants and animals
Are your cells prokaryotic or eukaryotic? - CORRECT ANSWER - Eukaryotic
, What is a chromosome? - CORRECT ANSWER - One long DNA molecule with hundreds or
thousands of genes
Where are genes found? - CORRECT ANSWER - In the chromosomes
What are genes made of? - CORRECT ANSWER - DNA
How many chromosomes does a human have? - CORRECT ANSWER - 46, 23 pairs
What is a major difference between chromosomes in eukaryotes and a chromosome in a bacterial
cell? - CORRECT ANSWER - Bacteria cell: Found in cytoplasm
Eukaryotes: Found in nucleus
How would you define homeostasis? - CORRECT ANSWER - How organisms maintain
internal systems
What is an example of homeostasis? - CORRECT ANSWER - Humans internal body
temperature
How would you define the branch of biology called taxonomy? - CORRECT ANSWER - The
branch of biology that names and classifies organisms into groups of increasing breadth
Have all the species alive today been classified? - CORRECT ANSWER - No, approximately
1.8 million species have been identified and thousands more are identifies each year, but there
are 10 to 100 million species that exist
What are the levels of classification, going from species all the way up to domain? - CORRECT
ANSWER - Domain, kingdom, phylum, class, order, family, genus, species
What are the 3 domains? - CORRECT ANSWER - Eukarya, Bacteria, and Archaea
ACTUAL Exam Questions and CORRECT
Answers
How would you define biology? - CORRECT ANSWER - The study of living things
How do biologists study a problem, what do they use? - CORRECT ANSWER - The
scientific method
What is the definition for each of these levels? Ex. Biosphere, ecosystem, cells, organelles -
CORRECT ANSWER - Ecology
What are some key features of the principle of evolution? - CORRECT ANSWER -
Overarching theme in biology, makes sense of everything we know about living organisms
What specific feature are characteristics of all cells? - CORRECT ANSWER - Enclosed
membrane, use DNA as their genetic information
What is the difference between a eukaryotic cell and a prokaryotic cell? - CORRECT
ANSWER - Eukaryotic Cell: Has a membrane bound nucleus, usually are part of multiple cell
organisms, larger and more complex, typically have more organelles
Prokaryotic Cell: Lack a membrane bound nucleus, typically part of unicellular organisms,
smaller and less complex.
What types of organisms are included within the prokaryotes? - CORRECT ANSWER -
Prokaryotic: Bacteria
Eukaryotic: Plants and animals
Are your cells prokaryotic or eukaryotic? - CORRECT ANSWER - Eukaryotic
, What is a chromosome? - CORRECT ANSWER - One long DNA molecule with hundreds or
thousands of genes
Where are genes found? - CORRECT ANSWER - In the chromosomes
What are genes made of? - CORRECT ANSWER - DNA
How many chromosomes does a human have? - CORRECT ANSWER - 46, 23 pairs
What is a major difference between chromosomes in eukaryotes and a chromosome in a bacterial
cell? - CORRECT ANSWER - Bacteria cell: Found in cytoplasm
Eukaryotes: Found in nucleus
How would you define homeostasis? - CORRECT ANSWER - How organisms maintain
internal systems
What is an example of homeostasis? - CORRECT ANSWER - Humans internal body
temperature
How would you define the branch of biology called taxonomy? - CORRECT ANSWER - The
branch of biology that names and classifies organisms into groups of increasing breadth
Have all the species alive today been classified? - CORRECT ANSWER - No, approximately
1.8 million species have been identified and thousands more are identifies each year, but there
are 10 to 100 million species that exist
What are the levels of classification, going from species all the way up to domain? - CORRECT
ANSWER - Domain, kingdom, phylum, class, order, family, genus, species
What are the 3 domains? - CORRECT ANSWER - Eukarya, Bacteria, and Archaea
