In this Gre verbal prep question
it contains 2 types of question sentence completion and synonyms quiz
Part one Sentence completion
It is effective in treating fever,______, joint pains
A jaunt B jaundice C jargon D jollity
going on _____around Europe
A jest B jeopardize C jab D jaunts
especially its verification process which would __________________the
efficiency and credibility of the Agency
A jeopardize B jest C juxtapose D jibe
liberals be willing to ___________ their dreams of free market
A jibe B jostle C juncture D jettison
to ________the hot with the cold. I wanted to start with extreme heat,
A jaunt B juxtapose C jaundiced D jaunt
Now synonyms quiz the word in bold means?
Thanks andds kudos to PressTV for their excellent work
A disdain B acclamation C hate D dishonor
how can you ignores thats jocose personality? jocose means?
A complicated B serious C morose D funny
Sweat almond oil is extracted from the dried kernel of the plant.
Kernels means ?
A leaf B core C root , D flower
the city saw the zenith of developments and prasperity during the Buyid Dynasty (945-1055) Zenith means ?
A middle B end C Start D summit
'
Guenean officials yield to ruling junta yield means?
A resist B defer C agree with D complain
Liposuction yield similar results when performed on other parts of the body yield means?
A produce B prevent C hurdle D shape '
The answers are marked with pink
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Showing posts with label gre. Show all posts
Showing posts with label gre. Show all posts
Saturday, July 25, 2009
Monday, June 29, 2009
GRE biochemistry Biology test
In This Gre biochemistry and biology test Chose the right answer
Download link
17. Given the same temperature of O0C, which of the following liquids has the highest surface tension?
1. benzene
2. ethanol
3. acetone
4. water
5. Glycerine
18. Which property of any liquid can support the weight of a needle?
1. polar bonds
2. polarity
3. high surface tension
4. high heat of vaporization
5. capillarity
19. Which property of water is best demonstrated in the rise of water within xylem vessels of plants?
1. polarity
2. surface tension
3. capillarity
4. high specific heat
5. proton pump
20. Water spontaneously rises through capillary tubes. What is the relationship between the inside diameter of the tubes and the height of the water column?
1. inversely proportional, i.e. the smaller the diameter, the lower is the water column
2. directly proportional, i.e. the bigger the diameter, the higher the water column
3. no relationship, i.e. the rise of water is independent of the diameter
4. negative relationship, i.e. the bigger the diameter, the failure of water to rise
5. positive relationship, the smaller the diameter, the faster the rise of water
21. How much heat is needed to evaporate a liquid with high heat of vaporization compared to those having low heat of vaporization?
1. more heat
2. less heat
3. equal heat
4. no heat
5. none of the above
22. In your experiment using a continuous membrane of water, the membrane is permeable in which condition?
1. membrane of water sandwiched between chloroform and ether
2. membrane of water sandwiched between chloroform and xylene
3. membrane of water sandwiched between chloroform and acetone
4. membrane of water sandwiched between chloroform and ethyl alcohol
5. all of the above
23. What is the process by which liquids pass through the water membrane?
1. osmosis
2. diffusion
3. absorption
4. differential permeability
5. solubility
24. The water potential of a solution may be expressed as
1. atmospheres (atmp)
2. megaPascals (MPas)
3. bars
4. grams/cm3
5. all of the above
25. Which of the following is the expression of the water potential of pure water?
1. ψ <>0
3. ψ = 0
4. ψ ± 0
5. ψ ≤ 0
26. Name of the process that results on the change in weight of potato cylinders soaked in different concentrations of sucrose solutions?
1. diffusion
2. absorption
3. permeability
4. turgidity
5. flaccidity
Continue the GRE biochemistry Biology test
27. When potato cylinders were soaked in 0.7 M sucrose solution, what caused the percent weight change?
1. accumulation of water
2. accumulation of sucrose
3. accumulation of both water and sucrose
4. exit of water
5. exit of organelles
28. Which of the following has the most negative water potential?
1. potato cylinders previously soaked in distilled water
2. potato cylinders soaked in 0.1 M sucrose solution
3. a plant after a heavy rain
4. wilted plant in dry soil
5. none of the above
29. Cytoplasmic and cell membranes of lower epidermal cells in Rhoeo spathacea are permeable to
1. weak acid or base
2. strong acid or base
3. water
4. anthocyanin
5. A, B and C are correct
30. Which of these plant pigments is colored pink to blue-violet?
1. chlorophyll
2. xanthophylls
3. carotenoids
4. anthocyanin
5. none of the above
31. Anthocyanin can diffuse through
1. vacuolar membrane or tonoplast
2. cell membrane
3. cell wall
4. all of the above
5. none of the above
32. What were the findings in your experiment regarding the pH of anthocyanin?
1. acidic
2. basic
3. neutral
4. immeasurable
5. none of these
33. In which sugar solution does Hydrilla cells most likely undergo plasmolysis?
1. 0.1 M
2. 0.2 M
3. 0.4 M
4. 0.6 M
5. 0.8 M
34. Plasmolysis occurs if a plant cell (ψ < 0) is placed in
1. a solution with more negative water potential
2. a solution with water potential equal to zero
3. a solution with less water potential
4. hypotonic solution
5. any of the above
35. What is/are the base(s) of the differences of the membrane permeability?
1. size of the diffusing molecules
2. solubility of diffusing molecules with membrane molecules
3. concentration gradient
4. all of the above
5. none of the above
36. When the water potential of the plant cell sap is equal to that of its surrounding solution, it is said to be in equilibrium thus
1. the cell is turgid
2. there no net movement of water
3. the cell is in incipient plasmolysis
4. osmotic potential of cell sap is equal to pressure potential
5. none of the above
37. When the lower epidermal cells of Rhoeo spathacea was added with a strong base like ammonium hydroxide, what resulted
1. cytoplasm shrank and colored dark pink
2. cytoplasm shrank and colored greenish blue
3. cytoplasm become turgid and colored pink
4. cytoplasm become turgid and colored greenish blue
5. none of the above
38. Catalase is an enzyme named according to
1. its substrate
2. its effectiveness
3. its action
4. all of the above
5. none of the above
39. Which of these combinations of enzymes and substrate give the highest (maximum) effervescence?
1. sand + hydrogen peroxide
2. water + hydrogen peroxide
3. potato cylinder + hydrogen peroxide
4. macerated potato cube + hydrogen peroxide
5. none of the above
40. How would you know that there is breakdown of hydrogen peroxide is caused by the action of an enzyme catalase?
1. no evolution of oxygen gas
2. considerable evolution of oxygen gas
3. evolution of carbon dioxide gas
4. utilization of oxygen gas
5. evolution of hydrogen gas
41. Catalase activity is effective only at which pH?
1. slightly acidic
2. strongly acidic
3. slightly basic
4. strongly basic
5. neutral
42. In a chemical reaction between enzyme and its substrate what are produced?
1. reaction products
2. heat
3. reactants
4. all of the above
5. both A and B
43. How many calorie(s) is needed to raise the temperature of 1 g of water by 10 C?
1. one calorimeter
2. one calorie
3. one Kilocalorie
4. one centigrade
5. one Celsius
44. How does temperature affect activity of catalase on hydrogen peroxide?
1. At very low temperature, enzyme activity is very low.
2. As the temperature increases, catalase activity rises because hydrogen peroxide molecules move faster and reach the active sites of the enzyme molecules more rapidly.
3. Enzyme activity reaches at a maximum at the optimum temperature.
4. A further increase in temperature results in the drastic drop in enzyme activity because the enzyme molecules being proteins, are denatured and cannot work properly
5. all of the above are true.
45. In testing the product of photosynthesis, why was the leaf boiled before it was put in alcohol?
1. To ensure that the leaf undergone photosynthesis so that starch is accumulated.
2. To stimulate the leaf to hasten the process of photosynthesis.
3. To kill the cells and stop further chemical reactions that might use the stored starch.
4. To extract the chlorophyll that might block the location of starch.
5. All of the above are correct.
46. In the variegated gumamela leaf subjected to Iodine test for starch, what can you observe?
1. The originally white areas that turned brown showing starch is present.
2. The originally white areas that turned green showing starch is present.
3. The originally green areas have blue-black color indicating location of starch.
4. The originally green areas which turned brown indicating location of starch
5. Both green and white areas turned brown indicating the presence of starch.
47. Why is variegated leaf normally used in the experiment to verify the necessity of chlorophyll in photosynthesis?
1. It is efficient in the process of photosynthesis.
2. It has green regions with chlorophyll and non-green regions without chlorophyll.
3. It has even distribution of chlorophyll although not visible with the naked eye
4. It is the only leaf that responds to Iodine test for starch.
5. all of the above.
48. If the variegated leaf tested for starch show that starch may also be detected in both green and non-green regions. How would you explain this?
1. The sugar made in the green regions by photosynthesis may have been transported to the non-green region and stored as starch.
2. The direct product of photosynthesis in the non-green regions is in the form of starch.
3. The starch in the non-green region is not a product of photosysnthesis but by another process.
4. The starch in both green and non-green regions is not true starch.
5. Photosynthesis in the leaf does no always involve chlorophyll.
49. The pigment chlorophyll is most soluble in
1. acetone
2. 95% ethyl alcohol
3. water
4. xylol
5. none of the above
50. Fluorescence of chlorophyll is an inefficient utilization of light energy because
1. no potential chemical energy is produced
2. excess energy of its electrons is dissipated as heat and light energy
3. energy of its electrons is converted to ATP
4. all of the above
5. both A and B are correct
51. Chlorophyll molecule is soluble in an organic solvent because of its
1. carbon rings
2. pophyrin rings
3. hydrocarbon tail
4. benzene rings
5. all of the above
For the more tests and quizzes see the rest of the blog
I did not include the answers to the questions
Download link
17. Given the same temperature of O0C, which of the following liquids has the highest surface tension?
1. benzene
2. ethanol
3. acetone
4. water
5. Glycerine
18. Which property of any liquid can support the weight of a needle?
1. polar bonds
2. polarity
3. high surface tension
4. high heat of vaporization
5. capillarity
19. Which property of water is best demonstrated in the rise of water within xylem vessels of plants?
1. polarity
2. surface tension
3. capillarity
4. high specific heat
5. proton pump
20. Water spontaneously rises through capillary tubes. What is the relationship between the inside diameter of the tubes and the height of the water column?
1. inversely proportional, i.e. the smaller the diameter, the lower is the water column
2. directly proportional, i.e. the bigger the diameter, the higher the water column
3. no relationship, i.e. the rise of water is independent of the diameter
4. negative relationship, i.e. the bigger the diameter, the failure of water to rise
5. positive relationship, the smaller the diameter, the faster the rise of water
21. How much heat is needed to evaporate a liquid with high heat of vaporization compared to those having low heat of vaporization?
1. more heat
2. less heat
3. equal heat
4. no heat
5. none of the above
22. In your experiment using a continuous membrane of water, the membrane is permeable in which condition?
1. membrane of water sandwiched between chloroform and ether
2. membrane of water sandwiched between chloroform and xylene
3. membrane of water sandwiched between chloroform and acetone
4. membrane of water sandwiched between chloroform and ethyl alcohol
5. all of the above
23. What is the process by which liquids pass through the water membrane?
1. osmosis
2. diffusion
3. absorption
4. differential permeability
5. solubility
24. The water potential of a solution may be expressed as
1. atmospheres (atmp)
2. megaPascals (MPas)
3. bars
4. grams/cm3
5. all of the above
25. Which of the following is the expression of the water potential of pure water?
1. ψ <>0
3. ψ = 0
4. ψ ± 0
5. ψ ≤ 0
26. Name of the process that results on the change in weight of potato cylinders soaked in different concentrations of sucrose solutions?
1. diffusion
2. absorption
3. permeability
4. turgidity
5. flaccidity
Continue the GRE biochemistry Biology test
27. When potato cylinders were soaked in 0.7 M sucrose solution, what caused the percent weight change?
1. accumulation of water
2. accumulation of sucrose
3. accumulation of both water and sucrose
4. exit of water
5. exit of organelles
28. Which of the following has the most negative water potential?
1. potato cylinders previously soaked in distilled water
2. potato cylinders soaked in 0.1 M sucrose solution
3. a plant after a heavy rain
4. wilted plant in dry soil
5. none of the above
29. Cytoplasmic and cell membranes of lower epidermal cells in Rhoeo spathacea are permeable to
1. weak acid or base
2. strong acid or base
3. water
4. anthocyanin
5. A, B and C are correct
30. Which of these plant pigments is colored pink to blue-violet?
1. chlorophyll
2. xanthophylls
3. carotenoids
4. anthocyanin
5. none of the above
31. Anthocyanin can diffuse through
1. vacuolar membrane or tonoplast
2. cell membrane
3. cell wall
4. all of the above
5. none of the above
32. What were the findings in your experiment regarding the pH of anthocyanin?
1. acidic
2. basic
3. neutral
4. immeasurable
5. none of these
33. In which sugar solution does Hydrilla cells most likely undergo plasmolysis?
1. 0.1 M
2. 0.2 M
3. 0.4 M
4. 0.6 M
5. 0.8 M
34. Plasmolysis occurs if a plant cell (ψ < 0) is placed in
1. a solution with more negative water potential
2. a solution with water potential equal to zero
3. a solution with less water potential
4. hypotonic solution
5. any of the above
35. What is/are the base(s) of the differences of the membrane permeability?
1. size of the diffusing molecules
2. solubility of diffusing molecules with membrane molecules
3. concentration gradient
4. all of the above
5. none of the above
36. When the water potential of the plant cell sap is equal to that of its surrounding solution, it is said to be in equilibrium thus
1. the cell is turgid
2. there no net movement of water
3. the cell is in incipient plasmolysis
4. osmotic potential of cell sap is equal to pressure potential
5. none of the above
37. When the lower epidermal cells of Rhoeo spathacea was added with a strong base like ammonium hydroxide, what resulted
1. cytoplasm shrank and colored dark pink
2. cytoplasm shrank and colored greenish blue
3. cytoplasm become turgid and colored pink
4. cytoplasm become turgid and colored greenish blue
5. none of the above
38. Catalase is an enzyme named according to
1. its substrate
2. its effectiveness
3. its action
4. all of the above
5. none of the above
39. Which of these combinations of enzymes and substrate give the highest (maximum) effervescence?
1. sand + hydrogen peroxide
2. water + hydrogen peroxide
3. potato cylinder + hydrogen peroxide
4. macerated potato cube + hydrogen peroxide
5. none of the above
40. How would you know that there is breakdown of hydrogen peroxide is caused by the action of an enzyme catalase?
1. no evolution of oxygen gas
2. considerable evolution of oxygen gas
3. evolution of carbon dioxide gas
4. utilization of oxygen gas
5. evolution of hydrogen gas
41. Catalase activity is effective only at which pH?
1. slightly acidic
2. strongly acidic
3. slightly basic
4. strongly basic
5. neutral
42. In a chemical reaction between enzyme and its substrate what are produced?
1. reaction products
2. heat
3. reactants
4. all of the above
5. both A and B
43. How many calorie(s) is needed to raise the temperature of 1 g of water by 10 C?
1. one calorimeter
2. one calorie
3. one Kilocalorie
4. one centigrade
5. one Celsius
44. How does temperature affect activity of catalase on hydrogen peroxide?
1. At very low temperature, enzyme activity is very low.
2. As the temperature increases, catalase activity rises because hydrogen peroxide molecules move faster and reach the active sites of the enzyme molecules more rapidly.
3. Enzyme activity reaches at a maximum at the optimum temperature.
4. A further increase in temperature results in the drastic drop in enzyme activity because the enzyme molecules being proteins, are denatured and cannot work properly
5. all of the above are true.
45. In testing the product of photosynthesis, why was the leaf boiled before it was put in alcohol?
1. To ensure that the leaf undergone photosynthesis so that starch is accumulated.
2. To stimulate the leaf to hasten the process of photosynthesis.
3. To kill the cells and stop further chemical reactions that might use the stored starch.
4. To extract the chlorophyll that might block the location of starch.
5. All of the above are correct.
46. In the variegated gumamela leaf subjected to Iodine test for starch, what can you observe?
1. The originally white areas that turned brown showing starch is present.
2. The originally white areas that turned green showing starch is present.
3. The originally green areas have blue-black color indicating location of starch.
4. The originally green areas which turned brown indicating location of starch
5. Both green and white areas turned brown indicating the presence of starch.
47. Why is variegated leaf normally used in the experiment to verify the necessity of chlorophyll in photosynthesis?
1. It is efficient in the process of photosynthesis.
2. It has green regions with chlorophyll and non-green regions without chlorophyll.
3. It has even distribution of chlorophyll although not visible with the naked eye
4. It is the only leaf that responds to Iodine test for starch.
5. all of the above.
48. If the variegated leaf tested for starch show that starch may also be detected in both green and non-green regions. How would you explain this?
1. The sugar made in the green regions by photosynthesis may have been transported to the non-green region and stored as starch.
2. The direct product of photosynthesis in the non-green regions is in the form of starch.
3. The starch in the non-green region is not a product of photosysnthesis but by another process.
4. The starch in both green and non-green regions is not true starch.
5. Photosynthesis in the leaf does no always involve chlorophyll.
49. The pigment chlorophyll is most soluble in
1. acetone
2. 95% ethyl alcohol
3. water
4. xylol
5. none of the above
50. Fluorescence of chlorophyll is an inefficient utilization of light energy because
1. no potential chemical energy is produced
2. excess energy of its electrons is dissipated as heat and light energy
3. energy of its electrons is converted to ATP
4. all of the above
5. both A and B are correct
51. Chlorophyll molecule is soluble in an organic solvent because of its
1. carbon rings
2. pophyrin rings
3. hydrocarbon tail
4. benzene rings
5. all of the above
For the more tests and quizzes see the rest of the blog
I did not include the answers to the questions
Monday, June 15, 2009
gre vocab quiz
In this gre vocab quiz
Fill the blank space with the correct form of the word
1Those infected with the human immunodeficiency virus (HIV) are reported to be more to developing heart attack and stroke.
A _ vulpine B_ voluble C_ valid D_ vulnerable
2 so many _______ properties as a result of the high number of forecloses,
A_ vague B_ vacant C_ vapid D_ vehement
3_ others have for NOT being ____ in demanding that the solution be implemented
A_ veracious B_ verdant C_ vehement D_vernal
4_ Jennifer Capriati held off the _______ of Kim Clijsters in a final set of 22 games
A_ vagary B_ verve C_ voyeur D_ vortex .
5_ the late 60's when idealism was in _____
A_ vogue B_ vain C_ voracious D_viscous
6_must be ______ about screening and monitoring their patients
A_ virile B_virtual C_ vigilant D_virulent
7_ Franz Liszt is best known today for________ compositions for piano and his orchestral suites.
A_visage B_ vixen C_virtuoso D_ voyeur
in the following sentences chose the meaning of the word in a given sentence
8_it may turn out that our voracious demand for electricity is what could keep us dangerously dependent on foreign energy
\
means
A_fluctuate B_life-threatening C_very eager D well-founded
9_ all owners of vacant houses will be required to pay for property insurance as well as submit a maintenance plan.
vacant means
A_ spacious B_cheap C_ Empty D_Dull
for more tests see the other pages of the blog
Thanks for taking the exercise the answer in in red not green
If you to add things to this test notify me please
Fill the blank space with the correct form of the word
1Those infected with the human immunodeficiency virus (HIV) are reported to be more to developing heart attack and stroke.
A _ vulpine B_ voluble C_ valid D_ vulnerable
2 so many _______ properties as a result of the high number of forecloses,
A_ vague B_ vacant C_ vapid D_ vehement
3_ others have for NOT being ____ in demanding that the solution be implemented
A_ veracious B_ verdant C_ vehement D_vernal
4_ Jennifer Capriati held off the _______ of Kim Clijsters in a final set of 22 games
A_ vagary B_ verve C_ voyeur D_ vortex .
5_ the late 60's when idealism was in _____
A_ vogue B_ vain C_ voracious D_viscous
6_must be ______ about screening and monitoring their patients
A_ virile B_virtual C_ vigilant D_virulent
7_ Franz Liszt is best known today for________ compositions for piano and his orchestral suites.
A_visage B_ vixen C_virtuoso D_ voyeur
in the following sentences chose the meaning of the word in a given sentence
8_it may turn out that our voracious demand for electricity is what could keep us dangerously dependent on foreign energy
\
means
A_fluctuate B_life-threatening C_very eager D well-founded
9_ all owners of vacant houses will be required to pay for property insurance as well as submit a maintenance plan.
vacant means
A_ spacious B_cheap C_ Empty D_Dull
for more tests see the other pages of the blog
Thanks for taking the exercise the answer in in red not green
If you to add things to this test notify me please
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