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
A&P-Chapter 3
| Question | Answer |
|---|---|
| What is the cell membrane composed of? | Phospholipid bilayer with hydrophilic surfaces and hydrophobic interior. |
| What can membrane proteins function as? | Anchors, receptors, markers, enzymes, carriers, or channels |
| Integral proteins | Comprised part of the membrane. |
| Peripheral proteins | Bound to either inner or outer surfaces. |
| Microfilaments | Thin actin filaments that function in movement, anchoring, and consistency |
| Intermediate filaments | Intermediate size keratin filaments that function in shape and stabilization |
| Microtubules | Thick tubular filaments that function in organelle and vesicular movement; mitosis |
| Microvilli | Cell extensions that increase surface area |
| Cilia | Hairlike cell extensions that help transport materials |
| Ribosomes | Site of protein synthesis |
| Where are ribosomes found? | Rough ER Cytoplasm |
| Ribosomes use RNA to make ________. | Proteins |
| Smooth ER | Synthesized lipids/carbs and stores carbohydrates; serves as a factory |
| What are the chambers called in the endoplasmic reticulum? | Cisternae |
| Rough ER | Has ribosomes; synthesizes, modifies, packages proteins into vesicles |
| Golgi apparatus | Stacks of membranous discs with chambers; receives vesicles from ER at cis face and release them in vesicles at trans face |
| Lysosomes | Vesicles with digestive enzymes; garbage disposal |
| What happens at the mitochondria? | Site of ATP production |
| What are the inner folds of the mitochondria called? | Cristae |
| Membrane is _______ _________, only certain substances move across it. | Selectively permeable |
| Substances that do not require energy to move through membrane are _______. | Passive |
| Substances that do require energy to move through membrane are ________. | Active |
| Simple diffusion | Diffuse directly across membrane |
| Diffusion | Movement from high to low concentration. |
| What is diffusion affected by? | temp, molecular size, gradient size, and distance of diffusion |
| Ions/H20 diffuse across mem. through ________ __________. | Protein channels |
| Osmosis | water will diffuse toward higher solute concentration |
| Isotonic solution | Has equal conc. of solutes as inside cell. |
| Hypotonic solution | Has lower conc. of solutes than inside cell |
| Hypertonic solution | Has higher conc. of solutes than inside cell |
| Facilitated diffusion | Movement from high to low concentration; proteins bind molecules, changes shape, moves them across membrane |
| Active transport | Movement from low to high concentration; protein pump binds ions, uses ATP, pumps ions across membrane. |
| Vesicular transport | Movement of materials across membrane through membranous sacs. |
| Endocytosis | Materials packaged into vesicles and imported into cell. |
| Pinocytosis | Imports fluid |
| Phagocytosis | Membrane extends pseudopodia that engulfs material. |
| Exocytosis | Materials packed into vesicles and exported out of cell. |
Created by:
madelineyork
Popular Anatomy sets