Lab Flashcards
How many times does the ocular lens magnify?
10x
Name two kinds of microscopes
Compound
Dissecting
How much is total magnification?
Objective lens x ocular lens
The four objective lenses
4x
10x
40x
100x
On the dissecting microscope, where is the zoom magnification control knob?
On the top
On the compound microscope, the objective lenses are attached to what?
Nosepiece
Above the light source is a switch that moves left to right. What is it connected to?
Iris diaphragm
What does the dissecting microscope do
Provides light from any angle so large think objects can be used
Has a zoom lens
What does the compound microscope do?
Light source is underneath the object so only thin objects can be used
Is viewed upside down and backward
Has a much greater magnification ability then dissecting microscope.
Which microscope would you use to examine a sea shell?
Dissecting
Which microscope would you use to examine mold?
Compound
What are the three c’s?
Curious
Collecting information
Comfortable with new concepts
What are three ways a problem can come to your attention?
Someone assign it to you
It thrust itself of you because your car won’t start
Curious
What is diffusion?
The process when desolved particles move from an area of high concentration to low concentrated areas.
Plasma membrane is known as what?
Selectively permeable
Osmosis
When water moves from a high area of concentration to low concentration.
Iodine tests the presence of ______. If it turns back then it is ________.
Starch
Positive
Silver nitrate tests the presence of ______. If it turns positive the color is ________.
Chloride
Cloudy
Benedicts tests the presence of _____. If it is positive it turns _______.
Sugars
Green, yellow, or red depending on how much sugar is depicted
What kind of errors do you avoid when making a graph?
Numbers and info missing
No graph title
That is phagocytosis?
When an organism can eat by surrounding its pray and ingulfing it
When a plant withers, what organelle became dehydrated?
Central vacuole
A cell without a cell wall probably does not have what?
Chloroplasts
Central vacuole
