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- 1. Multiple ChoiceWhich structure is not a component of all cells?cell wallcell membranegenetic materialribosomes
- 2. Multiple ChoiceThe major locomotor structures in bacteria areflagellapilifimbriaecilia
- 3. Multiple ChoiceProkaryotic and eukaryotic cells have many differences, but they also share some common features. Which of the following may be found in either type of cell?Golgi bodiesribosomesmitochondrianucleus
- 4. Multiple Choice
What is the function of A?movement through watery environmentstore genetic instructionsstick to host cellsstore genes for antibiotic resistance - 5. Multiple ChoiceA cell will __________________ in a hypotonic solution.swell and perhaps burst (lyse)shrinkthe size of the cell will not changethe size of the cell will change from large to small and from small to large
- 6. Multiple ChoiceA cell will _____________________ in a hypertonic solution.swellshrinkwill not changewill explode
- 7. Multiple ChoiceThe picture is an example of...active tranportpassive transportdiffusionosmosis
- 8. Multiple Choice___________ strengthens and stabilizes the cell membrane.CarbohydratesProteinsPhospholipidsCholesterol
- 9. Multiple Choice___________ have 2 functions in the cell membrane.
1.) They act like gatekeepers, only let certain things in.
2.) Enzyme receptors embedded in the membrane.CarbohydratesProteinsPhospholipidsCholesterol - 10. Multiple ChoiceIn facilitated diffusion, molecules will randomly move through the pores in ______________.Carrier proteinsChannel proteinsIon pumpsAll of the above
- 11. Multiple ChoiceActive transport requires ______, moves materials from __________________, and goes _______ the concentration gradient.No energy, low to high, againstATP, high to low, withATP, low to high, withATP, low to high, against
- 12. Multiple ChoiceMeaning "to drink"ExocytosisEndocytosisPhagocytosisPinocytosis
- 13. Multiple ChoiceThis picture represents which type of cellular transport?passive transportendocytosisexocytosisosmosis
- 14. Multiple ChoiceThis picture represents what type of cell transport?endocytosisexocytosisosmosispassive transport
- 15. Multiple ChoiceThe cell below is in a _________ solution.HypotonicHypertonicIsotonic
- 16. Multiple ChoiceThe cell below is in a _____________ solution.HypertonicHypotonicIsotonic
- 17. Multiple ChoiceHydrophilic portion of cell membrane?ACDE
- 18. Multiple ChoiceWhat type of cells may never undergo mitosis and make new cells?blood cellsskin cellsnerve cellsstomach cells
- 19. Multiple ChoiceWhy don't cells just stretch when you grow, instead of making copies of themselves?The muscles in the cells can't stretch that far.The cell won't be able to bring in food fast enough or get waste out fast enough.The cell membrane doesn't like the feeling of stretching.The lysosomes don't want to work so hard.
- 20. Multiple ChoiceWhat type of cell is not yet specialized and can be turned into any type of cell?skin cellblood cellnerve cellstem cell
- 21. Multiple ChoiceHow many microns (µm)
= 1 mm?1,0001,000,00010,000100,000 - 22. Multiple ChoiceHow many nanometers (nm)
= 1 micron (µm)?1,000,0001,00010,000100,000 - 23. Multiple ChoiceHow many nanometers (nm)
= 1 mm?1,00010,000100,0001,000,000 - 24. Multiple Choice
To calculate actual size we use.....
image size ÷ magnification
image size x magnification
magnification ÷ image size
- 25. Multiple ChoiceIf the image measures 100 mm and the scale bar is is 50 µm, what is the magnification?2,000 x150 x5,000 x20 x
- 26. Multiple Choice
If a bacteria image measures 450 mm and the magnification is 15,000x, what is the actual size of the bacteria?
0.3 mm
0.03 mm
30 mm
300 mm
- 27. Multiple ChoiceDefine Surface areaThe total area on the surface of an objectLength X Width6 X (length X width)Add up the sides and divide by 4
- 28. Multiple ChoiceHow can surface area (SA) be increased?Grow largerDivide into smaller pieces
- 29. Multiple ChoiceFor cells to stay alive they require what type of SA:V?Large SA, Large VSmall SA, Large VLarge SA, Small VSmall SA, Small V
- 30. Multiple ChoiceThis image shows how materials move into various sized cells in a given amount of time.... why does one square cell have more pink coloring than the others?The surface area was too larger to get throughThe volume of the other cells was too large for the dye to get throughThere was not enough surface area for the dye to get throughThe volume was too low for the dye to stay in the square
- 31. Multiple ChoiceIodine turns dark purple when in contact with starch. After an hour, the solution in the dialysis tubing turned dark purple. Why?The starch in the tubing diffused out.The iodine and water diffused in.The iodine changed into starch.The starch changed into iodine
- 32. Multiple ChoiceMovement of solute through the cell membrane from high to low concentration.diffusionactive transportfacilitated diffusionosmosis
- 33. Multiple Choice0.9% NaCl is isotonic to red blood cells. Which of these describes what will happen if a technician misplaces a decimal point and makes 9.0% NaCl solution instead and administers it to a patient?The cells exposed to the solution will burst.The cells exposed to the solution will shrink.The cells will remain the same size.The cells exposed to the solution will expand but not burst.
- 34. Multiple Choice
Which of the following process requires energy?
passive transport
osmosis
dialysis
diffusion
active transport
- 35. Multiple Choice
This organelle has a double membrane and stores genetic materials & the creates ribosomes.
Ribosomes
Endoplasmic reticulum
Plasma/cell membrane
Nucleus
- 36. Multiple Choice
This organelle can be studded or bare and transports materials between organelles.
Ribosomes
Endoplasmic reticulum
Golgi Apparatus
Nucleus
- 37. Multiple Choice
This organelle has a double membrane and the site for aerobic respiration.
Mitochondria
Endoplasmic reticulum
Golgi Apparatus
Nucleus
- 38. Multiple Choice
In plants only, this double membraned organelle is the site of photosynthesis
Cytoskeleton
Centrosome
Cell membrane
Chloroplast
- 39. Multiple ChoiceWhich of the following is the driving force for facilitated diffusion?Concentration gradientATP hydrolysisADP hydrolysisPhosphorylation
- 40. Multiple ChoiceBiological membranes are composed primarily of.....nucleotides and nucleosidesenzymes, electron acceptors, and electron donorsmonosaccharides and diasaccharideslipids
- 41. Multiple Choice
The sandwich model, is a phospholipid bilayer between two layers of ______________was suggested by ____________________ scientists
proteins, Gorter and Grendel
lipids, Gorter and Grendel
proteins, Singer and Nicolson
proteins, Daveson and Danelli
- 42. Multiple Choice
What is the name of the structure labeled C?
peripheral Protein
integral Protein
glycoprotein
glycolipid
- 43. Multiple Choice
Whose results are these and what idea did they disprove?
Pasteur - spontaneous generation of life
Pasteur - cells come from pre-existing cells
Urey - biological molecules can be made from inorganic compounds
Florey and Chain - penicillin can be made by bacteria
- 44. Multiple ChoiceThis experiment was conducted by the scientists:Stanley Miller and Harold UreyHarold Urey and Albert EinstineHarrison Ford and Denzel WashingtonJames Watson and Francis Crick
- 45. Multiple ChoiceWhat was the result of the Miller-Urey Experiment?amino acidsnucleotideslipidsglucose
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