The Cell Membrane
Active Transport
Passive Transport
Organelles
Root words
100
The thin, flexible barrier that separates a cell from its surroundings
Cell membrane
100
In active transport, the cell gets its energy from the molecule __________
ATP (Adenosine Triphosphate)
100
Particles move from an area where they are more concentrated to an area where they are less concentrated.
Diffusion
100
the "Brain" of the cell
nucleus
100
the root word for 3 is _______
tri-
200
These types of proteins (found in the membrane) help molecules other than oxygen and water enter the cell
channel proteins
200
This type of movement across the cell membrane requires the use of energy
Active transport
200
The process of water traveling across a selectively permeable (semi-permeable) membrane
Osmosis
200
The part of the cell that keeps the outside out and the stuff on the inside in
cell membrane (animal cells) cell wall and cell membrane (plant cells)
200
The root word for small (teeny tiny) is ______
micro
300
Cell membranes are ______-permeable
semi (they let some stuff in)
300
Active transport is used when materials are too big or need to go ________ the concentrentration gradient
against or opposite
300
two solutions that have reached the "same strength" (same concentration) due to osmosis.
Isotonic
300
the "powerhouse" of the cell; this organelle converts chemical energy from food into ATP
mitochondria
300
The root word for "cell" is _________
-cyt (if at the beginning of a word, this is cyto-) (if at the end of word, thsi is -cyte)
400
The cell membrane is made of two layers of this
Lipids
400
How many phosphate groups are in ATP?
Three (Adenosine TRI phosphate)
400
When the solution outside of a cell is more concentrated that the solution in the cell, it causes water to leave the cell. This type of solution outside of the cell is said to be a _________ solution
hypertonic
400
This organelle assembles and makes proteins for the cell
ribosomes
400
the root word for "life" is ___
bio- (and -ology is the root for "study of", so biology is the study of life)
500
This word describes why the outside of the cell membrane LOVES water
Hydrophilic
500
How does the cell get energy from ATP? (explain the process)
An enzyme comes and breaks one of the phosphate groups off. When the bond to the phosphate group is broken, then the cell receives a short burst of energy.
500
When a cell is place in a diluted, or less concentrated, solution, water rushes into the cell, causing the cell to swell or even burst. This less concentrated solution is called a ___________ solution.
hypotonic
500
This part of the cell creates and assembles the lipids that are used to repair the cell membrane
The endoplasmic reticulum
500
The root word for "Exit" or "to leave" is _____
exo- (think exothermic)
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