Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 4
PBSC Cells BSC1005 259323 CONCEPTS IN BIOLOGY
| Question | Answer |
|---|---|
| ______ proteins are "self" markers that indicates the cell belongs to that organism. | Recognition |
| Which region of the phospholipid molecule is hydrophyllic? | The Glycerol Head |
| A cell with an internal salt concentration of 0.1% salt is placed in a solution of 2% salt solution. Which way will water move, into or out of the cell? | Out of the cell. |
| The framework inside a cell which keeps it from collapsing in on itself. | The Cytoskeleton |
| The heart has ______ proteins for adrenaline which increases the heart's rate of contraction when bound. | Surface |
| The process a cell uses to bring particles into the cell by pinching off a small circle of membrane to form a vesicle enclosing the particles. | Endocytosis |
| _____ proteins bind chemicals in the cell's outside environment and regulate processes within the cell. | Receptor |
| Which region of the phospholipid molecule is hydrophobic? | Fatty Acid Tails |
| Equal solute concentrations. | isotonic |
| Does diffusion move molecules down or up the concentration gradient? | Down |
| The organelle which functions to transport and package proteins after they are made. It is dotted with ribosomes. | The Rough Endoplasmic Reticulum (RER) |
| The ______ _______ is a unifying theory in biology which states that all living things are composed of cells and all cells arise from pre-existing cells. | Cell Theory |
| This is the title for the model which describes the fluid nature of the phospholipids of the plasma membrane and the proteins dotting the surface. | Fluid-Mosaic Model |
| This is the diffusion of water. | Osmosis |
| The simple cell type, which does not contain organelles. | Prokaryotic |
| The double lipid bilayer which defines the nucleus. | The Nuclear Membrane |
| ______ proteins on the cell membrane may speed up reactions. | Enzymatic |
| The complex cell type which contains organelles. | Eukaryotic |
| The organelle which functions as the final site for processing of proteins. | Golgi Complex |
| A specialized form of exocytosis whereby compounds made by the cell are released into the surrounding tissue. | Secretion |
| Small sacs (circles) of membrane are called _______. | vesicles |
| The organelle which is the site of protein synthesis. | The Ribosome |
| The organelle which is the site of photosynthesis in plants. | The Chloroplast |
| The term for membranes which allow some molecules to pass through while blocking passage of other molecules. | Selective Permeability |
| A cell with an internal salt concentration of 0.1% salt is placed in a solution of 2% salt solution. Is the solution surrounding the cell considered hypotonic or hypertonic? | The solution surrounding the cell is considered hypertonic . |
| This is a special type of exocytosis whereby compounds made by the cell are released into the surrounding tissues. | Secretion |
| The dark mass inside the nucleus which is the site of ribosomal subunit assembly. | The Nucleolus |
| This method of moving molecules across the membrane uses proteins embedded in the membrane, and uses ATP energy to move molecules against (up) the concentration gradient. | Active Transport |
| When the solute concentration is greater. | Hypertonic |
| The organelle which houses the DNA (chromosomes) . | The Nucleus |
| In a solution consisting of salt dissolved in water, which is the solute? | salt |
| The process whereby vesicles fuse with the plasma membrane and are able to "dump" the contents to the outside of the cell. | Exocytosis |
| How many layers of phospholipids are in a typical plasma (cell) membrane? | TWO (a bilayer) |
| The large space inside plant cells where water and glucose are stored. | Central Vacuole |
| The oganelle which is the site of aerobic respiration - also known as the "powerhouse" of the cell. | The Mitochondria |
| Is the glycerol head of a phospholipid molecule polar or non-polar? | Polar |
| These plasma membrane proteins penetrate through the phospholipid bilayer from one side to the other. They can act as gates or channels. | Transmembrane |
| Name 4 items that involve vesicles. | Endocytosis, Exocytosis, Secretion, Lysosomes |
| The organelle which functions to transport and package lipids and other molecules after they are made. | The Smooth Endoplasmic Reticulum |
| This method of moving molecules across the membrane uses proteins embedded in the membrane, but does not use ATP energy. It also moves molecules down the concentration gradient. | Passive Transport |
| These plasma membrane proteins reside only on the inner or outer side of the membrane. | Surface |
| When the solute concentration is less. | Hypotonic |
| Organelles known as "digestive sacs". | Lysosomes |
| Another name for passive transport. | Facilitated Diffusion |
Created by:
callen-pbsc