Lab Exam I Flashcards
Taxonomic classifications
Domain Kingdom Phylum Class Order Family Genus Species
Domains
Archaea
Bacteria
Eukarya
Kingdoms
Protista
Fungi
Plantae
Animalia
Binomial nomenclature
Consists of genus name capitalized followed by the species name lowercased with both names either underlined or italicized
How many things did you change on the airplane?
One
What is changing in the experiment
Independent variable
What you’re measuring in an experiment
Dependent variable
What you’re keeping the same throughout the experiment
Standardized variable
Does not get the experimental variable
Control group
The larger of this, the better the data you will get
Sample size
Scientific Method used in the black box experiment
Observation
Hypothesis
Prediction/experiment
Data collection/statistical analysis
Tentative statement or educated guess
Hypothesis
Hypothesis that has a lot of evidence to support it
Theory
Theory that has so much evidence to support it that we believe it to be true
Law/Principle
Can’t prove a hypothesis but you can _____ or support it
Disprove
Lenses through which you view magnified specimen; 10x magnification
Ocular lens
Movable mount for selecting the objective lens which provides the desired magnification
Revolving nosepiece
Lens on revolving nosepiece which accomplishes the desired magnification
Objective lens
Flat work surface upon which the slide is placed
Stage
Regulates the amount of light passing through the stage and specimen
Iris diaphragm
Constant light source beneath the iris diaphragm
Lamp
Lever that secures the slide to the stage
Mechanical stage
Gives initial focus of a specimen
Coarse adjustment knob
Gives refined focus of a specimen
Fine adjustment knob
One lens
Simple microscope
Two lenses; more than one set
Compound microscope
One place to look through
Monocular
Two places to look through
Binocular
4x magnification
Scanning lens
10x magnification
Low power
40x magnification
High power
100x magnification
Oil immersion
Increase in size of specimen
Magnification
How detailed the image is
Resolving power
Everything you see when looking in the lens; as it decreases, the magnification of specimen increases
Field of view
Distance from lens to specimen where the specimen is in sharp focus
Plane of focus
Thickness of a specimen that is in sharp focus
Depth of field
Regulated what goes in and out of cell
Plasma membrane
Control center of the cell
Nucleus
Production of rRNA
Nucleolus
Storage
Vacuole
Contains organelles
Cytoplasm
Maintains shape and protects
Cell wall
Wet mount
Take a slide, take specimen and put it on the slide, add a drop of liquid and then put a cover slide on top
Speeds up breakdown of hydrogen peroxide into water and oxygen; catalizes H202 > H20 + O2
Catalase
Where did starch start
In the bag
Did starch move
No it’s too big
How do you know starch didn’t move
Blue color is not outside the bag
Where did IKI start
In the beaker
Did IKI move
Yes it moved into the bag
Why did IKI move
Diffusion
How do we know IKI moved
The blue color in the bag
Where did water start
Beaker and bag
Did water move
Yes it moved into the bag
Why did water move
Osmosis
How do we know water moved
We could weigh the bag or the beaker and see a difference
Where did glucose start
In the bag
Did glucose move
Yes it moved out
Why did glucose move out
Diffusion
How do we know glucose moved out
Glucose test strip
Dialysis tubing is similar to what?
Plasma membrane
Potato slush was what color?
Water and peroxide in beaker was what color?
Creamy; water
Water and hydrogen peroxide goes into the bad because of ____
Diffusion
Hydrogen peroxide breaks down because it meets _____
Catacholase
In the organelle lab, the dialysis tubing ______ and ____
Swelled and bubbled
In the presence of oxygen catacholase produces ____
Melanin
More oxygen production in the bag because of _____
Catalase
Substrate in organelle lab
Hydrogen peroxide
Movement of molecules from an area of high concentration to low concentration
Diffusion
Diffusion of water across a semipermeable membrane
Osmosis
Substrate in enzyme lab
Hydrogen peroxide
Independent variable in enzyme lab
Amount of catalase (yeast)
Dependent variable in enzyme lab
Amount of oxygen produced
The greater the enzyme concentration, the greater the _____
Reaction
Enzyme in enzyme lab
Catalase