Cells for 100 Why are cells limited to such small sizes? As
cells grow larger, the volume grows faster than the surface area.
Therefore, the nutrient needs of the organelles that make up the
volume of the cell outpace the ability of a cell to take in
nutrients across the surface of the cell membrane.
Slide 4
Cells for 200 Name the function of each of the following
cellular components. Microtubule Determine cell shape Serve as
tracks for intracellular movement Extracellular movement as part of
cilia and flagella Microfilament Increase surface area as part of
microvilli Enable muscle contraction Nucleolus Produce
ribosomes
Slide 5
Cells for 300 What are three pieces of evidence supporting the
endosymbiotic theory? 1. M&C have their own DNA in single,
circular chromosomes 2. M&C have their own ribosomes which are
similar to prokaryotic ribosomes 3. M&C have a double lipid
bilayer that resulted from endocytosis 4. M&C reproduce on
their own via binary fission 5. M&C are similar in size to
prokaryotic cells
Slide 6
Membranes for 100 What are TWO ways that membrane structure can
be altered to prevent solidification in cold temps? More
unsaturated fatty acids in phospholipids will prevent clumping and
loss of flexibility of the membrane Cholesterol in animal membranes
will prevent phospholipid clumping as well.
Slide 7
Membranes for 200 What type of organism might have a
contractile vacuole, and where might it live? Single-celled protist
A hypotonic environment (lake, pond, river, stream)
Slide 8
Membranes for 300 What is the difference between carrier
proteins and channel proteins? Carrier the protein binds to a
particle, changes shape, and moves it across the membrane Channel
the protein opens a pathway for movement through the membrane
Slide 9
Potpourri for 100 List three effects of a Na-K pump on a cell.
Builds up concentration of Na+ outside a cell. Builds up
concentration of K+ inside a cell. Builds up an electrochemical
gradient.
Slide 10
Potpourri for 200 Give two differences between gap junctions
and plasmodesmata. Gap junctionsPlasmodesmata Animal cellsPlant
cells A few small pathwaysMany large pathways
Slide 11
Potpourri for 300 For each protein below, would it have been
produced by a free or bound ribosome? A) InsulinBound B) Tubulin
(unit of mitotic spindle)Free C) Digestive enzyme in
lysosomeBound
Slide 12
600 400 200 CellsMembranes 600 400 200 Potpourri FINAL
JEOPARDY! FINAL JEOPARDY!
Slide 13
Cells for 200 What material makes up the internal structure of
a flagellum? microtubules
Slide 14
Cells for 400 What is the purpose of the mitotic spindle? These
microtubules serve as guides for movement of chromosomes during
cell division
Slide 15
Cells for 600 If a ribosome moves to the ER as it works, what
might be its ultimate product? A membrane protein A secreted
protein A lysosome
Slide 16
Membranes for 200 A paramecium has a contractile vacuole. What
must be true of its environment if the vacuole empties very
infrequently? Only a slightly hyptonic environment
Slide 17
Membranes for 400 A cell just experienced an increase in
temperature in relation to its isotonic surroundings. How will this
affect the osmotic flow of water? It decreases the solute
potential, so it increases the likelihood that water will flow into
the cell.
Slide 18
Membranes for 600 What are two functions of membrane proteins
other than transport?
Slide 19
Potpourri for 200 Why do liver cells have large amounts of
smooth endoplasmic reticulum? Its helpful in one of the main
functions of the liver detoxification.
Slide 20
Potpourri for 400 What impact will a phosphatase have on signal
transduction? It will dephosphorylate a molecule. This stops signal
transduction.