Cell Communication and Cycle Review Game
Published on Mar 21, 2016
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PRESENTATION OUTLINE
Cell Communication and Cycle Review Game
Savanah Hipp
How to Play
- Up to 4 people can play at a time
- One player will read the questions
- The other three will stand around a stool with hands by sides
- First person to hit middle of stool tries to answer question, if wrong, passed to next player
- 1 correct answer = 1 pt, most puts wins!
What do cells use to communicate?
chemical signals
What is a series of steps that converts a received signal to a specific cellular response?
signal transduction pathway
What are direct cytosol passages that allow free flow of chemical signals from one cell to another?
cell junctions
What is a process that uses cell membrane contact to communicate?
cell to cell recognition
What carries chemical messages over short distances?
local regulators
What carries chemical messages over long distances?
hormones
What are the three steps of the signaling process?
reception, transduction, response
What are two common second messengers?
cAMP & calcium ions
Why are calcium ions an important second messenger?
the cell can regulate the concentration of
What can pathways regulate about enzymes?
Synthesis & Activity
How are signals amplified along the pathway?
with each step, more products are activated
What is apoptosis?
programmed cell death
What is observed when daughter cells are compared?
genetically identical
What is all DNA in a cell called?
genome
What holds sister chromatids together?
centomere
What is mitosis the division of?
genetic material or DNA
What is cytokinesis the division of?
Cytoplasm or cytosol
What are the sub phases of interphase?
G1, S, G2
What are the parts of the mitotic spindle?
centrosomes, microtubules, asters
What are the phases of mitosis?
prophase, prometaphase, metaphase, anaphase, telophase; NOT cytokinesis
What is the imaginary line where the chromosomes line up during mitosis called?
metaphase plate
How does cytokinesis take place in animals? Plants?
cleavage; cell plate
What is mitosis believed to be evolved from and what kind of organism does it take place in?
binary fission; bacteria or prokaryotes
How is the cell cycle driven?
specific signaling molecules in cytoplasm
What is the most important checkpoint and why?
G1 because if there is no go-ahead signal, cell will exit cycle and remain in G0
What is an example of an external signal?
Answers may vary, based on presentation: lack of essential nutrient, density-dependent inhibition, anchorage dependence
What are abnormal cells that stay in place called? That invade surrounding tissue?
bening tumors, malignant tumors
