The membrane
_____ is the body's chief solvent
What is water
What was antonie van leeuwenhoek known for?
father of the microscope
The first stage of the cell cycle of a dividing cell immediately following mitosis.
G 1
Gram positive bacteria have thick walls and no lipopolysaccharides.
How many microns is 1 mm?
1000
The passive transport process transportsmaterials _____ the membrane without any energy input form the cell
What is across
What domain of life do yeast belong to?
The set of instructions for building a new nucleotide strand
What is template or parent strand
In the localizing tubulin lab, in which two tissues were we supposed to be able to see the tubulin once we stained the tissues?
Trachea and esophagus
histamine, prostaglandins
The process in which molecules scatter themselves throughout an area
What is diffusion
List the differences between animal and plant cells.
plants have cell walls, chloroplasts and large central vacuoles. They don't have centrioles.
There is a checkpoint in the M phase of the cell cycle. What is it checking for?
Proper attachment of spindle fibers to the centromeres of the sister chromatids.
We looked at onion root tip cells. In which phase of the cell cycle did most of those cells appear to be?
List at least two cytokines that are involved in the Covid cytokine storm.
TNF-alpha, Interleukins of various kinds
The plasma membrane can be described using the fluid mosaic model. What does this mean? (list things you might find in the membrane)
Identify the type of stem cell that has the potential to develop into any kind of tissue.
Pluripotent
Cells that do not divide are in what phase of the Cell Cycle?
G0
We looked at pictures of HeLa cell spreads. What is the word used to describe the abnormal number of chromosomes seen in those spreads?
aneuploidy
What do kinases do?
These are enzymes that transfer phosphate groups from one molecule to another
Why is active transport necessary across cell membranes?
What is the difference between epithelial and connective tissues?
epithelial cells line organs and tissues and can be found in skin, for example. Connective tissue connects and provides support for your tissues and can be found in ligaments, muscle, and bone.
List at least three characteristics of cancer cells.
Ignore density-dependent inhibition. Blow through check-points in the cell cycle. Are not anchored. Make their own growth signals. Ignore signals to die. May be immortal. Extend telomeres.
Explain the mechanism by which proteins can be separated using gel electrophoresis.
Which allows for a slower response, a metabotropic or an ionotropic receptor?
metabotropic