A&P lab 2
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29 Terms
Scanning lens
Front: Scanning Objective Lens magnification
Back: 4x
Front: Total magnification when using the Scanning lens
Back: 40x (4x objective \(\times \) 10x ocular)
Low dry lens
Front: Low Dry Objective Lens magnification
Back: 10x
Front: Total magnification when using the Low Dry lens
Back: 100x (10x objective \(\times \) 10x ocular)
High dry lens
Front: High Dry Objective Lens magnification
Back: 40x
Front: Total magnification when using the High Dry lens
Back: 400x (40x objective \(\times \) 10x ocular)
The field of view
A background white circle of light around your object
Resolving power
Magnification of object to distinguish fine detail
Image inversion
Object is inverted compared to how it appears unmagnified
Working distance
The distance between the bottom of the objective lens and the top of the slide
Scanning(4x) working distance
15
Low dry(10x)working distance
6.5
High dry (40x) working distance
0.5
Diameter of the field of view
As the power of the lens increases the amount of the specimen visible decreases because the diameter of the field decreases
Scanning(4x) diameter field of view
4.5
Low dry (10x) diameter field of view
2
High dry (40x) diameter field of view
0.5
What is the longest phase in the cell cycle
Interphase
G1 phase
The cell grows larger, copies organelles, and performs normal daily functions.
S phase
The cell replicates its entire DNA genome so each new cell gets an exact copy.
G2 phase
The cell makes final growth spurts and manufactures proteins needed for division.
G0 phase
A resting or quiescent state where a cell cycle and stops dividing while remaining metabolically active
Mitotic cell cycle
An orderly sequence of growth and division that produces two genetically identical daughter cells
Interphase cell cycle
Cell grows, duplicates it DNA, and prepares for division
The steps of mitosis
Prophase
Metaphase
Anaphase
Telophase
Stages of cell division
Interphase
Prophase
Metaphase
Anaphase
Telophase
Interphase
DNA duplicated
Growth
Preparation for cell division
Prophase
Chromosomes condense
Metaphase
Chromosomes( consisting of two chromatids) line up at equatorial plate
Anaphase
The attachments between sister chromatids break
Telephase
New nuclei form each with two complete sets of chromosomes
Cytokinesis divide cell into two daughter cells
Cytokinesis
This means cytoplasmic division