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Author Topic: Please someone help with these biology questions, Quick!!?  (Read 489 times)
jstarr1984_verizon
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« on: May 20, 2011, 10:03:19 PM »

Disease-causing bacteria often attach to cells they attack. The bacterial structures used to aid that attachment are ________.  (Points: 4)
        flagella
        fimbriae
        sex pili
        cilia
        capsule


2. Which of the following is an INCORRECT match? (Points: 4)
        ribosomes - protein synthesis
        Golgi apparatus - protein alteration and packaging

        mitochondria - production of cellular ATP
        lysosomes - cellular digestion
        smooth endoplasmic reticulum - storage of water
 



3.
Which of the following is the correct sequence for an altered protein that is secreted from the cell? (Points: 4)
        rough endoplasmic reticulum - Golgi apparatus - plasma membrane
 

        Golgi apparatus - ribosome - plasma membrane
        nucleus - smooth endoplasmic reticulum - Golgi apparatus
        Golgi apparatus - smooth endoplasmic reticulum - plasma membrane
        smooth endoplasmic reticulum - plasma membrane - Golgi apparatus - ribosome


4. Which of the following is NOT a possible function of the extracellular matrix in animal cells? (Points: 4)
        enables cells to migrate along intracellular fibers
        permit communication between the extracellular matrix and the cells
        creates a variety of consistencies for cells to live in from flexible cartilage to solid bone

        helps cells have flexibility
        produce numerous channels for continuous flow of water from cells to cells.


5. Which of the following would be best to view all the organelles of a cell with? (Points: 4)
        compound light microscope
        electron microscope
        magnifying lens
        dissecting microscope
        the unaided eye


6. Which of the following is not a function of junction proteins?  
  (Points: 4)
        to stitch cells together so that they do not move apart.

        to allow information to pass between adjacent cells.

        to stitch cells together so that they are bound into a functional organ.

        to permit cells to recognize one another.

        to allow cell-to-cell communication.


7. Which of the following is best associated with a coupled reaction? (Points: 4)
        ATP consumes energy from another metabolic reaction.
        ADP often transfers a phosphate to the reactant.

        The metabolic reaction requires energy from ATP.

        ATP gains a phosphate group.
        ADP is used up in the metabolic reaction.


8. Which of the following shows the flow of energy at the cellular level through the biosphere? (Points: 4)
        solar energy - mitochondria - chloroplast
        chloroplast - solar energy - mitochondria
        solar energy - chloroplast - mitochondria
        mitochondria - solar energy - chloroplast
        chloroplast - mitochondria - solar energy


9.
Metabolic pathways are known for all of the following except (Points: 4)
        the use of energy in small amounts.
        linking between pathways.
        controlled formation of products.

        controlled formation of products.

        enzymes to help raise the energy of activation.


10. What process typically regulates the enzymes involved in metabolic reactions? (Points: 4)
        substrate inhibition
        entropy capture
        ATP blockage
        feedback inhibition
        temperature levels


11. Simple diffusion of molecules occurs ________. (Points: 4)
        from an area of lesser concentration to an area of greater concentration
        in non-living systems as well as living systems

        across plasma membranes only through transport proteins

        until those molecules are more highly concentrated on one side of the plasma membrane

        only in molecules that are in gaseous state


12. Osmosis includes ________. (Points: 4)
        a semi-permeable membrane
        transport proteins
        the diffusion of water
        both the diffusion of water and a semi-permeable membrane
        both a semi-permeable membrane and transport proteins


13. A white blood cell surrounds and engulfs a worn-out red blood cell, forming a vesicle around the red blood cell. This process is called ________.  
  (Points: 4)
        active transport
        phagocytosis
        exocytosis
        pinocytosis
        facilitated diffusion


14. Inside the chloroplasts, chlorophyll is found in the (Points: 4)
        mesophyll.
        thylakoid space.
        thylakoid membrane.
        stroma.
        cytoplasm.


15. In a redox reaction, reduction means _________, and oxidation means _________. (Points: 4)
        loss of electrons; gain of electrons
        gain of water; loss of water
        gain of electrons; loss of electrons
        loss of water; gain of water
        gain of protons; loss of protons


16. In
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BioLiz
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« Reply #1 on: May 20, 2011, 10:23:37 PM »

Too bad you did not know any of the answers......
I will help you with some.

Disease-causing bacteria often attach to cells they attack. The bacterial structures used to aid that attachment are ________. (Points: 4)
fimbriae

2. Which of the following is an INCORRECT match? (Points: 4)
smooth endoplasmic reticulum - storage of water

3. Which of the following is the correct sequence for an altered protein that is secreted from the cell? (Points: 4)
rough endoplasmic reticulum - Golgi apparatus - plasma membrane

5. Which of the following would be best to view all the organelles of a cell with? (Points: 4)
electron microscope
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Abby_Durham
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« Reply #2 on: May 20, 2011, 10:56:46 PM »

WellI find this for you.http://cheapay.info/15569/animal-cell
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Call_Hill
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« Reply #3 on: May 20, 2011, 11:10:38 PM »

Is it what you need? http://boxee.info/15569/animal-cell
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