Test
Anatomy
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Preguntas del test (18)
1_________________ is the process of particles in solution in an area of high concentration flowing to an area of low concentration.
- ATransfusion
- BSolute mixing
- CDiffusion
- DParticle swapping
2particles are said to be following down their concentration _____________
- AGradient
- BCurve
- CSlope
- DIncline
3If a membrance allows some substances to pass through it but not others it is said to be
- AFreely permeable
- BLeaky
- CNon permeable
- DSelectively or semi permeable
4Because water itself is composed of particles it will also diffuse from areas where its concentration is higher to areas where its concentration is lower - this provess with water is given the special name
- ASymbiosis
- BOsmosis
- CWater transport
- DWater gradation
5The barrier function of the plasma membrane is performed by
- Athe channel protein
- Bcholesterol
- Cthe anchor protein
- Dthe phospholipid barrier
6which of the following is a true statement regarding to two major mechanisms by which materials get across the cell membrane
- ABoth passive and active transport mechanisms require energy
- BNeither passive nor active transport mechanisms requiere energy
- CPassive transport mechanisms require no energy; active transport mechanisms do requiere energy
- DPassive transport mechanisms do requiere energy. active transport mechanisms do not require energy
7In simple diffusion, particles cross the cell membrane following their concentration gradient by which two of the following mechanisms
- ADireclty through the phosopholipid bilayer
- BThrough transport proteins
- Cby endocytosis
- Dby solute pumping
8Which of the following substances can pass directly through the plasma membrane?
- ACarbon dioxide (CO2) and glucose
- BOxygen (O2) and potassium
- CCarbon dioxide (CO2) and oxygen (O2)
- DNo substances can pass directly through the plasma mebrane
9Particles that diffuse across the plasma membrane using transport proteins include all the following except
- AAmino acids
- Bwater
- Cions
- Durea
10Because glucose does not fit through channel proteins and we don't want to make channel proteins wide enough to let glucose through because too many other things would also get through, we use a special protein molecule that only recognizes glucose, to allow glucose to still diffuse into the cell. This process is called
- Afacilitated diffusion
- BIon diffusion
- Cspecial diffusion
- Dsimple diffusion
11All of thw following are reasons active mechanisms may need to be used to transport materials across a plasma membrane except
- ASubstances may be too large to diffuse through the channel proteins
- BSubstances may not be able to pass direclty through the phospholipid bilayer
- CSubstances may have to be pumped against a concentration gradient
- DSubstances directly touching the cell membrane may be toxic to it and therefore requiere a special protein to actively move it across
12The two main types of active mechanism of transport
- ASolute pumping
- BFacilitated difusion
- CBulk transport
- DSimple diffusion
13In _________, ATP activates a protein in the membrane to actively pump substances across the cell membrane
- ASolute pumping
- BFacilatated diffusion
- CSimple diffusion
- DBulk transport
14Materials transported across the plasmas membrane by solute pumping include all the following except
- Aamino acids
- Bsugar not including glucose
- Cproteins
- Dions
15The two major types of bulk transport include
- ASolute pumping and facilated diffusion
- BEndocytosis and exocytosis
- CDirect movement across the membrane and osmosis
- DSolute pumping and simple diffusion
16The two main types of endocytosis are
- APinocytosis (cell drinking)
- BExocytosis
- CPhagocytosis (cell eating)
- DOsmocytosis
17Passive mechanisms are especially important for materials that we need to transport across cell membranes in large quantities - this allows us to accomplish important transport without expending large amounts of energy
- AVerdadero
- BFalso
18The main feature of eukaryotic cells that allows cells to become more complex and perform more complicated functions is [blank_start]compartmentalization[blank_end] - the division of the cell into smaller, self-contained compartments called [blank_start]organelles[blank_end] that can specialize in performing specific functions - this allows cells to work more efficienlty, to join together in tissues that perform specific [blank_start]functions[blank_end], which can then join togther to form a whole, multicellular organism. For the most part, this is accomplished by the use of plasma [blank_start]membranes[blank_end]. This allows for specific [blank_start]environments[blank_end] where macromolecules can work to do things at their most optimum
- Acompartmentalization
- Borganelles
- Cfunctions
- Dmembranes
- Eenvironments
Información
- Descripción
- 12th grade Anatomy Test sobre Anatomy, creado por Andrea Colsa el 04/12/2016.
- Autor
- Andrea Colsa
- Idioma
- Español
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