Chapter 7.3 Flashcards
2 layers that make up the cell membrane
Lipid Bilayer
Layer around the cell membrane to provide support and protection in some organisms
Cell wall
What is cell wall made of?
Made of CHO and proteins
Plant cell walls are made of cellulose
The movement of materials across the cell membrane without using cellular energy
Passive transport
Particles move from an area of high concentration to an area of low concentration
Diffusion
Mixture of 2 or more substance in which the molecules of each substance are evenly distributed
Solution
Substance that is dissolved
Solute
Substance in which the solute is dissolved
Solvent
When the concentration of solute is the same throughout a system
Equilibrium
Mass of solute in a given volume of solution
Concentration
Proteins channel in the cell membrane allow certain molecules to cross the membrane without the use of cellular respiration
Facilitated diffusion
Provides support, protection and controls what enters and leaves the cell
Cell membrane
The diffusion of water through a semi-permeable (water moves from high to low concentration of water)
Osmosis
When comparing 2 solutions and the concentration of solute is the same
Isotonic
When comparing 2 solutions, the one that has the low concentration of solute
Hypotonic
Water pressure within the cell
Turgor pressure
When a cell bursts because of too much turgor pressure
Cytolysis
When comparing 2 solutions, the one that has a higher concentration of solute
Hypertonic
The shrinking or wilting of a cell from low turgor pressure
Plasmolysis
Using energy to move particles against the concentration gradient
Active transport
Molecules are moved across the cell membrane through transport proteins
Molecular transport
Taking material into the cell by enfolding the material in the cell membrane forming pockets around the material
Endocytosis
Extensions of cytoplasm engulf large particles to be taken onto the cell
Phagocytosis
Extensions of cytoplasm engulf liquid to be taken onto the cell
Pinocytosis
Wastes are packaged in vesicles that fuse with the cell membrane forcing the material out of the cell
Exocytosis
The variable that is different between the control group and the experimental group
Manipulated variable
The variable that we observe and measure as part of the experiment
Responding variable
Group that is not changed from the normal circumstances
Control group
Group operates with the experimental conditions or the new different conditions
Experimental group
Photosynthesis equation
CO2 + H2O + NRG(light) == O2 + CHO
Cellular respiration
CHO + O2 == ATP(light) + H2O +CO2
