Microscope
How do you hold a microscope ?
one hand on arm, one hand on base .
What are the 3 stages of interphase ?
G1, S - phase / synthesis, G2
What is the actual name for M-phase ?
Mitosis .
What IS cell differentiation ?
cell changes from one cell to another .
what is the cell theory ?
1. All living things are made of one or more cells
2. the cell is the most basic unit of structure and function in living things
3. new cells come from pre-existing cells
What are the two nobs to focus your view called ?
fine adjustment, coarse adjustment .
What is Gø (zero)
a resting phase cells enter
Which phase of mitosis is the longest ?
Prophase .
What gives rise to the cells specific shape and functions ?
The expression of the genes that are turned on or off.
What Are three things all cells have ?
Options -
A cell membrane
DNA
cytoplasm
proteins
ribosomes
Which objective do you ALWAYS start off on ?
10x lens / lowest / smallest
What is the purpose of G1?
First growth phase, synthesizes organelles
Which phase signals that mitosis is now complete ?
Telophase .
What occurs in differentiated cells ?
Certain genes are turned on or off .
What is a eukaryotic cell ?
Organisms who have a membrane bound nucleus .
What magnification is the oscillator lens (eye piece) ?
10x magnification
What is the purpose of synthesis (s - phase) ?
to replicate DNA, making two copies, and prepare for cell division .
During what phase are spindle fibers connected to the centromere of the chromatids ?
Metaphase .
What are diff differentiated cells called ?
Totipotent or pluripotent .
Why do cells need to divide ?
Growth, replacing damage cells, reproduction .
At what angle do you drop the cover slip at, when creating a wet-mound slide ?
45˚
What is produced during G2 ?
Proteins needed for cell division .
What happens during cytokinesis ?
Why are undifferentiated cells present in both animal and plant cells ?
In order to continue to make more cells.
Which grows faster the surface area or the volume ?
volume .