GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 08 Dec 2019, 01:50

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Pack 5 Q4: To make red wine, fermentation occurs...

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
EMPOWERgmat Instructor
User avatar
G
Joined: 23 Feb 2015
Posts: 697
Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post Updated on: 27 Nov 2019, 16:56
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

79% (01:23) correct 21% (01:18) wrong based on 94 sessions

HideShow timer Statistics

Pack 5, Question 4 of 5:

To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.

A. yeast is converting the sugars into ethanol as carbon dioxide evaporates
B. yeast converts the sugars into ethanol as carbon dioxide was evaporated
C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide
D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast
E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol


◀ Pack 5, Question 3
▶ Pack 5, Question 5
⏏ Question Pack Home


48 Hour Window To Win An $85 EMPOWERgmat Tuition Credit (1 Month Free!)
Share your explanation! The GMAT Club member with the most verified Kudos in total on the 5 question SC Block 5 question pack will win an $85 EMPOWERgmat tuition credit, which will entitle the winner to a full month of complete access to the EMPOWERgmat system. Even if you're not sure about your answer or your rationale, share your explanation to help boost your learning and earn a chance to win.

To be eligible, your explanation must:
    be submitted within the 48 hour window after this post was created
    should explain your reasoning why the answer you chose is correct, and why the other 4 options are incorrect within 48 hours of this post

The OA and official explanation will be held until the 48 hour window has lapsed.

_________________
"Students study. GMAT assassins train."
Image


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★

Originally posted by EMPOWERgmatVerbal on 25 Nov 2019, 16:10.
Last edited by EMPOWERgmatVerbal on 27 Nov 2019, 16:56, edited 1 time in total.
Manager
Manager
avatar
S
Joined: 23 Nov 2018
Posts: 239
GMAT 1: 650 Q49 V28
GPA: 4
Reviews Badge CAT Tests
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 25 Nov 2019, 19:46
1
1
To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.


A. yeast is converting the sugars into ethanol as carbon dioxide evaporates- correct! (while crushed grapes are sitting- yeast is converting)- "as" correctly connects the two events that are taking place simultaneously ( yeast converting and carbon dioxide evaporating)
B. yeast converts the sugars into ethanol as carbon dioxide was evaporated- "was evaporated" is the wrong tense.. was+ ed is ideally used in more passive constructions i guess.. making this sentence sound awkward..(ex: "water was evaporated by boiling")-awkward
C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide- yeast as per google can be singular or plural, but- yeast is not converting the sugars with the help of evaporating carbon dioxide- this is not the intended meaning!
D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast- the carbon dioxide is not evaporating with the event of "converting of sugars"- also the phrase" converting of sugars into ethanol "by yeast" is passive construction!.
E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol- carbon dioxide didn't evaporate with the yeast as such... yeast converting sugars and carbon dioxide are simultaneous actions its better to connect the two events with an "as"
_________________
.
Senior Manager
Senior Manager
avatar
P
Joined: 22 Feb 2018
Posts: 319
CAT Tests
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 25 Nov 2019, 20:34
1
To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.

Seems weird structure but does not have any error. Let's look for better option.

A. yeast is converting the sugars into ethanol as carbon dioxide evaporates - Hold it.
B. yeast converts the sugars into ethanol as carbon dioxide was evaporated - Unnecessarily shifts the verb tenses, which distorts the meaning.
C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide - SVA error, Yeast is singular and plural 'have' is not incorrect. with evaporating of CO2 is wordy
D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast - present continuous tense for evaporation changes the meaning of the sentence. Passive voice distorts the structure of the sentence.
E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol - Unncessarily, with modifier modifies the previous clause and changes the structure of the original sentence.

Imo. A is better one, though sounds weird.
_________________
Thanks in the forum can be expressed by hitting KUDOS!!!
Manager
Manager
User avatar
G
Joined: 17 Jul 2014
Posts: 177
GMAT ToolKit User CAT Tests
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 27 Nov 2019, 13:21
1
To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.

While indicates there are multiple actions happening at the same time. That gives us the good view to proceed with POE.

A. yeast is converting the sugars into ethanol as carbon dioxide evaporates
while grapes are sitting , yeast is converting sugars -> looks ok, do i need yeast as a subject doing the conversion? Would not solely reject the AC if i don't like it. If i don't find any better choice, i would choose this, hence keep this answer.

B. yeast converts the sugars into ethanol as carbon dioxide was evaporated
While requires simultaneous actions so 'was evaporated' puts the action in the past and does not fit intended parallel actions.

C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide
While grapes are sitting , yeast have converted... Again this suggests conversion started before action of grapes sitting , not the simultaneous action. And we don't know what is 'with' modifying here - yeast, or conversion, sugars or ethanol. Its not clear.

D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast
while grapes are sitting , carbon dioxide is evaporating. Ok, we have one simultaneous action. the actual process of conversion is a part of With modifier so it doesn't indicate the ongoing parallel action. Also, what is 'With' modifying. Is the carbon dioxide with the converting of sugars into ethanol is evaporating or process of evaporation is with the converting of sugar. Meaning of the sentence is very unclear.

E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol
has evaporated suggests evaporation happened in the past, as wrong in some of the above choices, sequencing of the actions is not required. Carbon dioxide has evaporated has become the main aspect in the sentence. Whereas the process of conversion as carbon dioxide evaporates is the highlight of the intended meaning. Just as other options, this option also incorrectly uses with modifier.

A is best among the options!
EMPOWERgmat Instructor
User avatar
G
Joined: 23 Feb 2015
Posts: 697
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 27 Nov 2019, 16:45
Official Explanation:

To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.

A. yeast is converting the sugars into ethanol as carbon dioxide evaporates
B. yeast converts the sugars into ethanol as carbon dioxide was evaporated
C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide
D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast
E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol

A review of our answer choices shows that verb tense is the deciding factor in this sentence, and we also have a split in the word joining the two clauses (as or with). When verb tense is important, it is essential to look at the portion of the sentence that is not underlined. This will give us clues about what tenses we need to match to remain parallel and grammatical.

In the first independent clause, we have a simple present tense verb (occurs). In the dependent clause connected to the underline portion, we have a present progressive tense verb (are sitting) and the subordinate conjunction “while.” “While” tells us the underlined portion of the sentence is happening at the same time. Any verbs in the underlined portion should be in the present tense; nothing should be in the past tense. Option B uses “was evaporated,” which is the past tense and passive. It cannot be the correct answer.

To further narrow our choices, let’s look at the as/with situation. “As” clearly expresses a simultaneous sequence of events—yeast converting the sugars is happening at the same time as the carbon dioxide evaporates. “With” could mean that one event must lead to another or it could mean they are happening at the same time. “With” makes the sentence ambiguous while “as” does not. Additionally, the options that use “with” have to use a gerund (-ing verb form acting as a noun), which can be awkward (the converting of, an evaporating of). Given these two reasons, “with” is not the best choice. Options C, D, and E cannot be the best answers.

This leaves us with Option A. It uses the present progressive and simple present and clearly shows the simultaneous nature of these actions.

Option A is the best answer.
_________________
"Students study. GMAT assassins train."
Image


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
EMPOWERgmat Instructor
User avatar
G
Joined: 23 Feb 2015
Posts: 697
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 27 Nov 2019, 16:47
sampriya wrote:
To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.


A. yeast is converting the sugars into ethanol as carbon dioxide evaporates- correct! (while crushed grapes are sitting- yeast is converting)- "as" correctly connects the two events that are taking place simultaneously ( yeast converting and carbon dioxide evaporating)
B. yeast converts the sugars into ethanol as carbon dioxide was evaporated- "was evaporated" is the wrong tense.. was+ ed is ideally used in more passive constructions i guess.. making this sentence sound awkward..(ex: "water was evaporated by boiling")-awkward
C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide- yeast as per google can be singular or plural, but- yeast is not converting the sugars with the help of evaporating carbon dioxide- this is not the intended meaning!
D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast- the carbon dioxide is not evaporating with the event of "converting of sugars"- also the phrase" converting of sugars into ethanol "by yeast" is passive construction!.
E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol- carbon dioxide didn't evaporate with the yeast as such... yeast converting sugars and carbon dioxide are simultaneous actions its better to connect the two events with an "as"


Well done, sampriya! You cracked the code! Great job focusing on a combination of verb tenses, meaning, and active/passive voice!

Kudos to you!
_________________
"Students study. GMAT assassins train."
Image


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
EMPOWERgmat Instructor
User avatar
G
Joined: 23 Feb 2015
Posts: 697
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 27 Nov 2019, 16:50
Raxit85 wrote:
To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.

Seems weird structure but does not have any error. Let's look for better option.

A. yeast is converting the sugars into ethanol as carbon dioxide evaporates - Hold it.
B. yeast converts the sugars into ethanol as carbon dioxide was evaporated - Unnecessarily shifts the verb tenses, which distorts the meaning.
C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide - SVA error, Yeast is singular and plural 'have' is not incorrect. with evaporating of CO2 is wordy
D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast - present continuous tense for evaporation changes the meaning of the sentence. Passive voice distorts the structure of the sentence.
E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol - Unncessarily, with modifier modifies the previous clause and changes the structure of the original sentence.

Imo. A is better one, though sounds weird.


Well done, Raxit85! Great job catching the changes in meaning and verb issues! While option A still might sound "off" to you, you were smart to leave it be and look to other options for errors, rather than just saying "it's wrong because it sounds weird." Even the correct options on the GMAT sometimes don't sound the way we would write them!

Kudos to you!
_________________
"Students study. GMAT assassins train."
Image


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
EMPOWERgmat Instructor
User avatar
G
Joined: 23 Feb 2015
Posts: 697
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 27 Nov 2019, 16:52
snoep wrote:
To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.

While indicates there are multiple actions happening at the same time. That gives us the good view to proceed with POE.

A. yeast is converting the sugars into ethanol as carbon dioxide evaporates
while grapes are sitting , yeast is converting sugars -> looks ok, do i need yeast as a subject doing the conversion? Would not solely reject the AC if i don't like it. If i don't find any better choice, i would choose this, hence keep this answer.

B. yeast converts the sugars into ethanol as carbon dioxide was evaporated
While requires simultaneous actions so 'was evaporated' puts the action in the past and does not fit intended parallel actions.

C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide
While grapes are sitting , yeast have converted... Again this suggests conversion started before action of grapes sitting , not the simultaneous action. And we don't know what is 'with' modifying here - yeast, or conversion, sugars or ethanol. Its not clear.

D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast
while grapes are sitting , carbon dioxide is evaporating. Ok, we have one simultaneous action. the actual process of conversion is a part of With modifier so it doesn't indicate the ongoing parallel action. Also, what is 'With' modifying. Is the carbon dioxide with the converting of sugars into ethanol is evaporating or process of evaporation is with the converting of sugar. Meaning of the sentence is very unclear.

E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol
has evaporated suggests evaporation happened in the past, as wrong in some of the above choices, sequencing of the actions is not required. Carbon dioxide has evaporated has become the main aspect in the sentence. Whereas the process of conversion as carbon dioxide evaporates is the highlight of the intended meaning. Just as other options, this option also incorrectly uses with modifier.

A is best among the options!


Another great explanation, snoep! This was a tricky one because the correct choice may still sound "off" to you, but it is the only one that conveys the intended meaning clearly. We may not choose to write the sentence that way in our own writing, but that's the fun of the GMAT - sometimes even the correct answers might sound odd.

Kudos to you!
_________________
"Students study. GMAT assassins train."
Image


The Course Used By GMAT Club Moderators To Earn 750+

souvik101990 Score: 760 Q50 V42 ★★★★★
ENGRTOMBA2018 Score: 750 Q49 V44 ★★★★★
Senior Manager
Senior Manager
avatar
G
Joined: 17 Aug 2018
Posts: 278
GMAT 1: 610 Q43 V31
GMAT 2: 640 Q45 V32
GMAT 3: 640 Q47 V31
Premium Member
Re: Pack 5 Q4: To make red wine, fermentation occurs...  [#permalink]

Show Tags

New post 29 Nov 2019, 11:05
To make red wine, fermentation occurs with the pulp and skins together, and while the crushed grapes are sitting, yeast is converting the sugars into ethanol as carbon dioxide evaporates.

Quick read-through reveals that we deal with parallelism and meaning. Somethings is happening while grapes are sitting. So, the underlined part must be parallel to "grapes are sitting".

A. yeast is converting the sugars into ethanol as carbon dioxide evaporates
B. yeast converts the sugars into ethanol as carbon dioxide was evaporated
C. yeast have converted the sugars into ethanol with an evaporating of carbon dioxide
D. carbon dioxide is evaporating, with the converting of sugars into ethanol by yeast
This option is parallel technically, but meaning has no sense. Also, the part in blue is nonsensical.
E. carbon dioxide has evaporated, with the yeast converting the sugars into ethanol

Only option (A) maintains proper meaning and parallelism.
GMAT Club Bot
Re: Pack 5 Q4: To make red wine, fermentation occurs...   [#permalink] 29 Nov 2019, 11:05
Display posts from previous: Sort by

Pack 5 Q4: To make red wine, fermentation occurs...

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





cron

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne