BIO100 EXAM 1 QUESTIONS AND
ANSWERS (RATED A+)
How is discovery-based science different from hypothesis-driven science? -
ANSWERDiscovery Based science- has the goal of finding new information and
serves to form new hypotheses. Hypothesis Driven science- uses deduction and the
scientific method.
What are the steps of the Scientific Method? - ANSWER1. Do an observation
2. Ask a question
3. Construct a hypothesis
4. Make a prediction
5. Test the experiment
6. Analyze the results
7. Draw a conclusion
Remember: A hypothesis is an educated guess to your question, must be testable,
and can never be proven!
What is the Theory of Endosymbiosis? - ANSWERIt is the theory that the
mitochondria and chloroplasts contained within modern animal and plant cells were
once free living bacteria that were engulfed by another bacterial cell leading to the
eukaryotic cell.
What are two major functions of the cytoskeleton? - ANSWERThe cytoskeleton
changes in cell shape, maintenance of cell shape, and movement of organelles.
Chemical reactions can rearrange atoms but never create or destroy them. -
ANSWERTrue
An organism classified as a consumer captures energy directly from the sun. -
ANSWERFalse
A bond that forms when two atoms share electrons is called a covalent bond. -
ANSWERTrue
Are large or small sample sizes more accurate for scientific studies? -
ANSWERLarge sample sizes are more accurate for scientific studies because it
increase the chance of finding a significant difference and leads to a more precise
data.
What is an emergent property? What quality of life does it have to do with? -
ANSWER-It's the property where living things become more and more complex as it
goes from cellular level to organ system (Some kind of characteristics comes around
when two interest come together).
-Life requires the ability to grow and reproduce using the information in one's DNA.
, Why is the ability to evolve important for living things? - ANSWERLiving things
evolve to adapt to their surroundings.
How does taxonomy help scientists study life? - ANSWERBy providing easily
remembered scientific names for organisms. The more features 2 organisms share,
the more taxonomic levels they share. Ranks group to similar organisms.
Be able to list, in order, the taxonomic hierarchy. Which taxonomic category is the
most specific and which is the most general? -
ANSWERDomain>Kingdom>Phylum>Class>Order>Family>Genus>Species
What is the difference between a hypothesis and a scientific theory? - ANSWERA
hypothesis is an explanation that may or may not have undergone scientific testing,
while a theory is a hypothesis that has undergone numerous tests over many years
and has accumulated a large body of evidence in support of the explanation.
What are the six qualities of life? Be able to describe each quality and not just
recognize them. - ANSWER1. All living things have cells - Cell is the smallest unit of
life. Cell contains all the material that are necessary for life to exist. Some organisms
are unicellular (only one cell) like bacteria, multicellular (many cells) like human.
Human cells have different function like for nerves or skin.
2. Living things can sense and response to change - Living things response to a
stimuli. A stimuli could include smells (good or bad), taste, sound, heat (touching a
hot stove), light or darkness, or gravity.
- Homeostasis: When an organism responds to changes in order to keep its internal
environment the same.
3. Living things reproduce - Living things must reproduce to ensure that their species
survives.
4. Living things have DNA - Living things have DNA because it controls all the
characteristics and activities of an organism.
5. Living things use energy - Organisms takes in energy, converts it to useful forms,
and expels energy.
6. Living things grow and develop - Development: Living things change and mature
as they grow old over time. Organisms pass through different stages as they grow.
- Single celled organisms: Grow larger.
- Multi-celled organisms: Grow in number of cells.
- Metamorphosis: Is when organisms have a complete change of body shape. Ex:
Capterpillar -> Butterfly or Tadpole -> Frog.
-Domains are most general and species are specific.
ANSWERS (RATED A+)
How is discovery-based science different from hypothesis-driven science? -
ANSWERDiscovery Based science- has the goal of finding new information and
serves to form new hypotheses. Hypothesis Driven science- uses deduction and the
scientific method.
What are the steps of the Scientific Method? - ANSWER1. Do an observation
2. Ask a question
3. Construct a hypothesis
4. Make a prediction
5. Test the experiment
6. Analyze the results
7. Draw a conclusion
Remember: A hypothesis is an educated guess to your question, must be testable,
and can never be proven!
What is the Theory of Endosymbiosis? - ANSWERIt is the theory that the
mitochondria and chloroplasts contained within modern animal and plant cells were
once free living bacteria that were engulfed by another bacterial cell leading to the
eukaryotic cell.
What are two major functions of the cytoskeleton? - ANSWERThe cytoskeleton
changes in cell shape, maintenance of cell shape, and movement of organelles.
Chemical reactions can rearrange atoms but never create or destroy them. -
ANSWERTrue
An organism classified as a consumer captures energy directly from the sun. -
ANSWERFalse
A bond that forms when two atoms share electrons is called a covalent bond. -
ANSWERTrue
Are large or small sample sizes more accurate for scientific studies? -
ANSWERLarge sample sizes are more accurate for scientific studies because it
increase the chance of finding a significant difference and leads to a more precise
data.
What is an emergent property? What quality of life does it have to do with? -
ANSWER-It's the property where living things become more and more complex as it
goes from cellular level to organ system (Some kind of characteristics comes around
when two interest come together).
-Life requires the ability to grow and reproduce using the information in one's DNA.
, Why is the ability to evolve important for living things? - ANSWERLiving things
evolve to adapt to their surroundings.
How does taxonomy help scientists study life? - ANSWERBy providing easily
remembered scientific names for organisms. The more features 2 organisms share,
the more taxonomic levels they share. Ranks group to similar organisms.
Be able to list, in order, the taxonomic hierarchy. Which taxonomic category is the
most specific and which is the most general? -
ANSWERDomain>Kingdom>Phylum>Class>Order>Family>Genus>Species
What is the difference between a hypothesis and a scientific theory? - ANSWERA
hypothesis is an explanation that may or may not have undergone scientific testing,
while a theory is a hypothesis that has undergone numerous tests over many years
and has accumulated a large body of evidence in support of the explanation.
What are the six qualities of life? Be able to describe each quality and not just
recognize them. - ANSWER1. All living things have cells - Cell is the smallest unit of
life. Cell contains all the material that are necessary for life to exist. Some organisms
are unicellular (only one cell) like bacteria, multicellular (many cells) like human.
Human cells have different function like for nerves or skin.
2. Living things can sense and response to change - Living things response to a
stimuli. A stimuli could include smells (good or bad), taste, sound, heat (touching a
hot stove), light or darkness, or gravity.
- Homeostasis: When an organism responds to changes in order to keep its internal
environment the same.
3. Living things reproduce - Living things must reproduce to ensure that their species
survives.
4. Living things have DNA - Living things have DNA because it controls all the
characteristics and activities of an organism.
5. Living things use energy - Organisms takes in energy, converts it to useful forms,
and expels energy.
6. Living things grow and develop - Development: Living things change and mature
as they grow old over time. Organisms pass through different stages as they grow.
- Single celled organisms: Grow larger.
- Multi-celled organisms: Grow in number of cells.
- Metamorphosis: Is when organisms have a complete change of body shape. Ex:
Capterpillar -> Butterfly or Tadpole -> Frog.
-Domains are most general and species are specific.
