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Homeostasis and Homeostasis and Transport:Transport:
Jeopardy Review Game
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Homeo-stasis
PassiveTransport
ActiveTransport
Osmosis Misc.
What is homeostasis?
The stable internal conditions of a living thing.
Which of the following would NOT be an example of maintaining homeostasis?
A. the body temperature staying 98.6oFB. Blood sugar levels staying at 140
mg/dlC. Dissolved oxygen levels in the blood
changing dramatically
C
How does the cell membrane maintain homeostasis?
The cell membrane maintains homeostasis by controlling what
enters and leaves the cell.
Draw and label the parts of the cell membrane using the terms: phospholipids, integral proteins, peripheral proteins and cholesterol.
What are the three types of passive transport (diffusion)?
DialysisFacilitated Diffusion
Osmosis
In the following situation only water is small enough to move across the cell
membrane.A) Which way will the water move?
B) What type of diffusion is this?C)What type of solution is the cell in?
(hypotonic, hypertonic, isotonic)
A) Out of the cellB) osmosis
C) hypertonic
In the following cell there is glucose which IS a small enough molecule that CAN pass
through the cell membrane.A) Which way will the glucose move?
B) What type of diffusion is this?
A) Into the cellB) Dialysis
Which Cell will lose the most amount of Water?
A
All of our cells require oxygen, fortunately it is a small molecule that can diffuse across our cell membranes. In the following situation
which way will the oxygen move?
Into the cell.
What are the 3 main types of active transport?
EndocytosisExocytosis
Pumps
Is the following picture of Endocytosis or Exocytosis?
Exocytosis
Do the following items describe active or passive transport?
A) Requires EnergyB) Molecules move from high to low
concentrationC) Osmosis
A) ActiveB) PassiveC) Passive
Do the following items describe active or passive transport?
A) DiffusionB) Molecules move from low to high
concentrationsC) Endocytosis
A) PassiveB) ActiveC) Active
What is the only molecule that moves in osmosis?
water
What determines the way the water will move in osmosis?
- Water moves from where there is more water to where there is less.
- Water moves from where there is less solute to where there is more
solute.- Water moves from a hypotonic solution to a hypertonic solution.
What happens to a plant cell if it is placed in a hypertonic environment,
be specific – use the terms we’ve used in this unit.
Plasmolysis – the cell membrane pulls away from the cell wall and the
plant will wilt and eventually die.
A)Draw a cell that is in a hypotonic environment.
B) Will the cell gain or lose mass?C) What types of cells, plant or
animal, typically live in a hypotonic environment?
A)B) GainC) Plant
List the following molecules from the smallest to the largest.
Sucrose, starch, glucose and water
Water, glucose, sucrose, starch
The following cells are at the end of the transport process. In which cell did active transport take place and in which did passive transport take
place?
Passive transport = A Active transport = B