Exam review ole miss BISC 110
human biology an integrated
exploration Sobia llayas Questions
with Correct Answers
What is science? - ANSWERSA way of thinking and explains the world.
A system of knowledge based on facts and evidence.
what isn't science? - ANSWERSNot based on feelings, technology, religion, ethics or
morality.
How science is conducted
2 variables - ANSWERS1st: obstruction- noting a natural phenomenon
2nd experimentation- testing hypothesis in a controlled environment
Variables
independent- experimental
dependent- responsive
Control group( placebo) - ANSWERSThe fake drug given to people
replication - ANSWERSthe process of repeating a study or experiment to verify its
results and ensure reliability.
peer review - ANSWERSwhen scientist sends study off for fellow scientist to critic it
Hypothesis-one study - ANSWERStestable tentative explanation based on observation
or data.
Can be supportive or disproven
Theory - ANSWERSit comes from a large body of evidence and unifies related
hypothesis
Sciences purpose - ANSWERSto investigate and understand the natural world, to
explain events in the natural world, and to use those explanations to make useful
predictions
Limits of science - ANSWERScan only study the natural world
Characteristics of life - ANSWERS1. organized- the basic unit of a cell
2. requires energy
, 3. maintains internal stability- homeostasis
4. reproduces, grows and develops
5.evolves
organization - ANSWERSmolecules make up cells and make up tissues, tissues make
up organs, organs make up organ systems
cellular - ANSWERSrefers to anything related to cells, which are the basic structural
and functional units of living organisms.
homeostasis - ANSWERSstate of internal consistency in the present of external
changes
organizations of life - ANSWERS1. atom
2. molecules
3. organelle
4. cell
5. tissues
6. organs
7. organ systems
8. organism
* least to greatest
cell size - ANSWERStiny size: 10-100 um, discovered by Hooke (1665)
2 types of microscopes:
light microscope- color and living cells, passes light
Scanning electron microscopes- detailed resolution inside and out
cell and cell theory - ANSWERScell-smallest unit of life
requires exchange of O2 nutrients and waste in an environment
smaller cells have higher SA-R ratio
* smaller it is- better it is to exchange materials
selectively permeable
* may vary but to set point to maintain stability
* work through negative feedback( E.X. thermostat)
Membranes are selectively permeable - ANSWERSSubstances enter and exit based on
concentration gradient and there chemical properties
Cell membrane structure - ANSWERSphospholipid bilayer
2 layers that have hydrophobic interior
Fluid mosiac- cell membrane
Phosphol- cholesterol stability and proteins
small non-polar molecules - ANSWERSPass through a cell membrane most easily
human biology an integrated
exploration Sobia llayas Questions
with Correct Answers
What is science? - ANSWERSA way of thinking and explains the world.
A system of knowledge based on facts and evidence.
what isn't science? - ANSWERSNot based on feelings, technology, religion, ethics or
morality.
How science is conducted
2 variables - ANSWERS1st: obstruction- noting a natural phenomenon
2nd experimentation- testing hypothesis in a controlled environment
Variables
independent- experimental
dependent- responsive
Control group( placebo) - ANSWERSThe fake drug given to people
replication - ANSWERSthe process of repeating a study or experiment to verify its
results and ensure reliability.
peer review - ANSWERSwhen scientist sends study off for fellow scientist to critic it
Hypothesis-one study - ANSWERStestable tentative explanation based on observation
or data.
Can be supportive or disproven
Theory - ANSWERSit comes from a large body of evidence and unifies related
hypothesis
Sciences purpose - ANSWERSto investigate and understand the natural world, to
explain events in the natural world, and to use those explanations to make useful
predictions
Limits of science - ANSWERScan only study the natural world
Characteristics of life - ANSWERS1. organized- the basic unit of a cell
2. requires energy
, 3. maintains internal stability- homeostasis
4. reproduces, grows and develops
5.evolves
organization - ANSWERSmolecules make up cells and make up tissues, tissues make
up organs, organs make up organ systems
cellular - ANSWERSrefers to anything related to cells, which are the basic structural
and functional units of living organisms.
homeostasis - ANSWERSstate of internal consistency in the present of external
changes
organizations of life - ANSWERS1. atom
2. molecules
3. organelle
4. cell
5. tissues
6. organs
7. organ systems
8. organism
* least to greatest
cell size - ANSWERStiny size: 10-100 um, discovered by Hooke (1665)
2 types of microscopes:
light microscope- color and living cells, passes light
Scanning electron microscopes- detailed resolution inside and out
cell and cell theory - ANSWERScell-smallest unit of life
requires exchange of O2 nutrients and waste in an environment
smaller cells have higher SA-R ratio
* smaller it is- better it is to exchange materials
selectively permeable
* may vary but to set point to maintain stability
* work through negative feedback( E.X. thermostat)
Membranes are selectively permeable - ANSWERSSubstances enter and exit based on
concentration gradient and there chemical properties
Cell membrane structure - ANSWERSphospholipid bilayer
2 layers that have hydrophobic interior
Fluid mosiac- cell membrane
Phosphol- cholesterol stability and proteins
small non-polar molecules - ANSWERSPass through a cell membrane most easily
