lab exam Flashcards
what is a dependent variable
what you are measuring. It depends on the reaction or the test
what is an independent variable
what you are testing or what you are in control of or what you manipulate.
what is a hypothesis
never a question, statement , not proven true, supports the test
null hypothesis
represents a theory that has been put forward, either because it is believed to be true or because it is to be used as. basis for argument , but has not been proven.
alternate hypothesis
is a statement of what a statistical hypothesis test is set up to establish.
scientific method
- the observation and question
- the hypothesis
3.experimentation and data collection - results and data analysis
- conclusions
publishing and peer review process
- get an education
2.condunct research - write it up
4.submit to a journal
5.first check - peer review
- first decision
- revise
- re-submit
- accepted
after published
citation
benedict’s test for what and what color
monosaccharides and rust red
Iodine indicator tests for what and what color do they turn
polysaccharides( starches) and dark blue
biuret’s reagent tests for what and what color does it turn
proteins and it turns blue-> violet
sudan IV tests for what and what color does it change
lipids and it turns red
what is the difference of DNA and RNA
RNA- ribonucleic acid and uricle
DNA - deoxyribose and thymine
protein is what
genes code forc, forming of amino acids are peptide
cell theory
.every organism is made up of at least one cell
. a cell is the basic unit of life
.cells are produced by division of pre-existing cells
prokaryotic cells
. lack membrane bound organelles and nucleus
. relatively simple interior structure
. region of DNA ( nucleoid ) instead of a nucleus
. DNA single circular molecule