Lab Exam I Flashcards by Grace Schumacher

Taxonomic classifications

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

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Domains

Archaea
Bacteria
Eukarya

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Kingdoms

Protista
Fungi
Plantae
Animalia

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Binomial nomenclature

Consists of genus name capitalized followed by the species name lowercased with both names either underlined or italicized

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How many things did you change on the airplane?

One

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What is changing in the experiment

Independent variable

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What you’re measuring in an experiment

Dependent variable

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What you’re keeping the same throughout the experiment

Standardized variable

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Does not get the experimental variable

Control group

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The larger of this, the better the data you will get

Sample size

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Scientific Method used in the black box experiment

Observation
Hypothesis
Prediction/experiment
Data collection/statistical analysis

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Tentative statement or educated guess

Hypothesis

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Hypothesis that has a lot of evidence to support it

Theory

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Theory that has so much evidence to support it that we believe it to be true

Law/Principle

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Can’t prove a hypothesis but you can _____ or support it

Disprove

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Lenses through which you view magnified specimen; 10x magnification

Ocular lens

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Movable mount for selecting the objective lens which provides the desired magnification

Revolving nosepiece

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Lens on revolving nosepiece which accomplishes the desired magnification

Objective lens

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Flat work surface upon which the slide is placed

Stage

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Regulates the amount of light passing through the stage and specimen

Iris diaphragm

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Constant light source beneath the iris diaphragm

Lamp

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Lever that secures the slide to the stage

Mechanical stage

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Gives initial focus of a specimen

Coarse adjustment knob

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Gives refined focus of a specimen

Fine adjustment knob

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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