Biology Review
Response
A deer running away from sound, an insect curling up from your touch, or a person eating when they feel hungry are all what characteristic of life
Selectively pemeable membrane
A membrane that allows certain materials to pass through, but not others
Hypertonic
A solution that has more solutes than a cell.
Isotonic
A solution that has the same concentration of particles as the cell.
Explain an Isotonic solution
A solution whose concentration equals that of a cell or tissues.
Explain a Hypotonic Solution
A solution with fewer solutes than a cell.
Cytoskeleton
B AND C
Life
Cells are the basic unit of
Dehydration
Condition in which cells or the whole body has lost water upsetting homeostasis
The size of cells placed in salt water
Decrease in size
Osmosis
Diffusion of water across a selectively permeable membrane from , diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
Iso
Equal/Same
Mitochondria
F
Smooth ER
H
It is a translucent spot that does not evaporate
How do you know if a spot is made from a oil?
Cells come from pre-existing cells
How does the Cell theory explain the existence of new cells?
Rough ER
I
Isotonic solution
If water molecules move into and out of the cell at an equal rate, the solution is this.
left
If you want you image to go to the right you move it_______.
forward
If you want your image to back you move it
The size of cells placed in plain water
Increase in size
Lysosomes
J
Golgi Apparatus
K
Nucleolus
M
Left to the right
Molecules will move from the _____ to the _____
Hypotonic
More water enters the cell.
Hypertonic
More water exits a cell in this solution.
Hypotonic
More water in the cell.
Hypertonic solutions
More water outside the cell.
Diffusion
Movement of particles or molecules from an area of high concentration to an area of low concentration
Nucleus
N
diagram of eukaryotic cell
Notice the nucleus and all the membrane bound organelles. This is an animal cell because there is no cell wall and no chloroplasts.
diagram of prokaryotic cell
Notice there is no nucleus and no membrane-bound organelles. There are ribosomes for making proteins.
Ribosome
P
Vesicle
Q
Plasma Membrane
R
Isotonic solutions
Refers to a solution whose solute concentration is equal to the solute concentration of another solution (iso=same)
Cause of death in water intoxication
Swelling of brain, disrupting organ function, organ failure results in death.
Hypertonic
The cell shrivels and possibly die.
Hypotonic Solution
The cell will expand or even burst in this type of solution.
What happens to cells placed in isotonic solutions
The cell's size remains constant.
Isotonic
The healthiest for a cell. (HINT: If you don't understand this, please read the set description)
Right to left
The molecules will move from _________ to _________.
hypotonic or less concentrated
The right side is _____ compared to the left side.
Capillary Effect
The separation of inks from the movement of water up a a filter paper is caused by
Cohesion
This is caused by
What happens when a cell is placed in a hypertonic solution?
Water comes out of the cell. The cell can go through plasmolysis.
What happens when a cell is placed in a hypotonic solution?
Water enters the cell. The cell can burst.
Cells
What is the Cell theory's idea of the basic unit of life?
Coarse adjustment
When focusing on your initial image what lens do you use
Fine adjustment
When using your higher power lenses or your oil immersion lens you will use which adjustment
Left test tube because it has turned black
Which of the images is a positive test for starch
right and left
Which of these is a positive test for sugar
Rudolph Vichow
Who said that cells come from preexisting cells
Water intoxication
a dangerous dilution of the body's fluids resulting from excessive ingestion of plain water. Symptoms are headache, muscular weakness, lack of concentration, poor memory, and loss of appetite.
Hypertonic
a solution with a higher concentration outside the cell than inside ( hyper=more)
Hypotonic solution
a solution with a lower concentration outside the cell than inside
Equilibrium
a state of balance or a stable situation where opposing forces cancel each other out and where no changes are occurring
contain genetic material
both
have cell membrane
both
have ribosomes
both
Concentration
compares the amount of something to the amount of something else,as a percent
tonic
concentrated
has many strands of DNA
eukaryotes
contain genetic material in a nucleus
eukaryotic
has a nucleus
eukaryotic
have membrane-bound organelles
eukaryotic
includes protists, fungi, plants, and animals
eukaryotic
more structurally complex; have specialized compartments where various reactions can take place
eukaryotic
unicellular or multicellular
eukaryotic
a salt water fish placed in fresh water would ...
have its cells swell and burst.
Hypo
less
Hyper
more
has a nucleoid
prokaryote
has a single circular strand of DNA
prokaryote
has no membrane bound organelles
prokaryote
includes bacteria
prokaryote
is the simplest of the two cell types
prokaryote
all are unicellular (one-celled)
prokaryotic
include archae and eubacteria
prokaryotic
no membrane-bound organelles
prokaryotic
no nucleus
prokaryotic
Cell Membrane
regulates and controls what enters or leaves the cell
solution
something dissolved into something else
hypertonic or more concentrated
the left side is _____ compared to the right side.
solvent
the stuff that does the dissolving
solute
the stuff that gets dissolved
Diffusion
when the solute moves from a area of high concentration to lower concentration
