Last visit was: 18 Nov 2025, 22:22 It is currently 18 Nov 2025, 22:22
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
User avatar
tamal99
Joined: 01 Jan 2018
Last visit: 25 Jun 2021
Posts: 124
Own Kudos:
162
 [34]
Given Kudos: 445
Location: India
Schools: IIM (II)
GMAT 1: 640 Q46 V32
GPA: 3.84
Schools: IIM (II)
GMAT 1: 640 Q46 V32
Posts: 124
Kudos: 162
 [34]
5
Kudos
Add Kudos
27
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
daagh
User avatar
Major Poster
Joined: 19 Feb 2007
Last visit: 16 Oct 2020
Posts: 5,264
Own Kudos:
42,417
 [7]
Given Kudos: 422
Status: enjoying
Location: India
WE:Education (Education)
Expert
Expert reply
Posts: 5,264
Kudos: 42,417
 [7]
6
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
General Discussion
avatar
sbhasin2006
Joined: 16 Jan 2018
Last visit: 03 Jan 2019
Posts: 1
Own Kudos:
1
 [1]
Given Kudos: 40
Location: South Africa
WE:Web Development (Computer Software)
Posts: 1
Kudos: 1
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
SonalSinha803
Joined: 14 Feb 2018
Last visit: 18 Feb 2019
Posts: 306
Own Kudos:
319
 [1]
Given Kudos: 29
Posts: 306
Kudos: 319
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
1. Just as photosynthesis allows plants to convert carbon dioxide and water into organic food, - correct comparison. I don't find any error. Let's move on and look for a better option.

2. Like photosynthesis, ((which)) allows plants to convert carbon dioxide and water into organic food, - only one fragment of a sentence...verb missing. Incorrect.

3. ((Similar to photosynthesis allowing)) plants' conversion of carbon dioxide and water into organic food, - incorrect comparison.

4. ((Similar to allowing plants)) to convert carbon dioxide and water into organic food, as done during photosynthesis, - incorrect comparison.

5. As photosynthesis, ((which)) allows plants to converts carbon dioxide and water into organic food, - same as B.

Thus, A seems best.

Sent from my Lenovo K53a48 using GMAT Club Forum mobile app
avatar
kram2612
Joined: 28 Nov 2016
Last visit: 09 Oct 2021
Posts: 11
Own Kudos:
Given Kudos: 26
Posts: 11
Kudos: 2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
tamal99
Just as photosynthesis allows plants to convert carbon dioxide and water into organic food, cellular respiration enables
animals to convert oxygen into energy.

1. Just as photosynthesis allows plants to convert carbon dioxide and water into organic food,

2. Like photosynthesis, which allows plants to convert carbon dioxide and water into organic food,

3. Similar to photosynthesis allowing plants' conversion of carbon dioxide and water into organic food,

4. Similar to allowing plants to convert carbon dioxide and water into organic food, as done during photosynthesis,

5. As photosynthesis, which allows plants to converts carbon dioxide and water into organic food,
Wat is wrong with 5? please explain.


Sent from my ONEPLUS A6000 using GMAT Club Forum mobile app
avatar
manishk30
Joined: 10 Jul 2016
Last visit: 14 Dec 2018
Posts: 32
Own Kudos:
Given Kudos: 34
Posts: 32
Kudos: 17
Kudos
Add Kudos
Bookmarks
Bookmark this Post
daagh
Just as photosynthesis allows plants to convert carbon dioxide and water into organic food, cellular respiration enables animals to convert oxygen into energy.

Structurally, this is a complex sentence, with the as clause acting as a subordinate clause and the second part as the main clause.

1. Just as photosynthesis allows plants to convert carbon dioxide and water into organic food --- perfect foil

2. Like photosynthesis, which allows plants to convert carbon dioxide and water into organic food, - wrongly compares a noun phrase with an IC -

3. Similar to photosynthesis allowing plants' conversion of carbon dioxide and water into organic food-- same problem as in B

4. Similar to allowing plants to convert carbon dioxide and water into organic food, as done during the photosynthesis, -- it is not made clear that it is photosynthesis that allows the plants to do conversion. Meaning is substantively twisted.


5. As photosynthesis, which allows plants to convert carbon dioxide and water into organic food ---- Meaning distorted. This choice says that cellular respiration takes the role of photosynthesis.

Actually, neither photosynthesis allows nor respiration enables (both are action verbs); they are status verbs during which these processes occur. Maybe this is not so relevant to GMAT SC.


But Sir I think Just As X, so Y is the correct structure. That's why I removed option A and E and marked B.
User avatar
daagh
User avatar
Major Poster
Joined: 19 Feb 2007
Last visit: 16 Oct 2020
Posts: 5,264
Own Kudos:
42,417
 [1]
Given Kudos: 422
Status: enjoying
Location: India
WE:Education (Education)
Expert
Expert reply
Posts: 5,264
Kudos: 42,417
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Just as X so Y need not be there always. Think of these sentences:
Just As I was rushing to the station, the train left.
Just as I was about to hit the bed, the telephone ring woke me up. But B is grammatically wrong for the reason I stated.
User avatar
Princ
Joined: 22 Feb 2018
Last visit: 04 May 2025
Posts: 351
Own Kudos:
Given Kudos: 34
Posts: 351
Kudos: 908
Kudos
Add Kudos
Bookmarks
Bookmark this Post
OA: A

The original sentence is correct as it is.

Quote:
Comparison as is the most important conjunction use of as on the GMAT. It sometimes appears together with just, so, or even so too:
Right: JUST AS the trains were late yesterday, the buses are late today.
Right: JUST AS the trains were late yesterday, SO TOO are they late today.
Source: :MGMAT SC
User avatar
tamal99
Joined: 01 Jan 2018
Last visit: 25 Jun 2021
Posts: 124
Own Kudos:
162
 [1]
Given Kudos: 445
Location: India
Schools: IIM (II)
GMAT 1: 640 Q46 V32
GPA: 3.84
Schools: IIM (II)
GMAT 1: 640 Q46 V32
Posts: 124
Kudos: 162
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
daagh
Just as photosynthesis allows plants to convert carbon dioxide and water into organic food, cellular respiration enables animals to convert oxygen into energy.

Structurally, this is a complex sentence, with the as clause acting as a subordinate clause and the second part as the main clause.

1. Just as photosynthesis allows plants to convert carbon dioxide and water into organic food --- perfect foil

2. Like photosynthesis, which allows plants to convert carbon dioxide and water into organic food, - wrongly compares a noun phrase with an IC -

3. Similar to photosynthesis allowing plants' conversion of carbon dioxide and water into organic food-- same problem as in B

4. Similar to allowing plants to convert carbon dioxide and water into organic food, as done during the photosynthesis, -- it is not made clear that it is photosynthesis that allows the plants to do conversion. Meaning is substantively twisted.


5. As photosynthesis, which allows plants to convert carbon dioxide and water into organic food ---- Meaning distorted. This choice says that cellular respiration takes the role of photosynthesis.

Actually, neither photosynthesis allows nor respiration enables (both are action verbs); they are status verbs during which these processes occur. Maybe this is not so relevant to GMAT SC.

Hello daagh sir,
If we look into option 2 like this-

Like photosynthesis, which allows plants to convert carbon dioxide and water into organic food, cellular respiration
enables animals to convert oxygen into energy.

isn't it a Noun to Noun comparison and if that is the case then can't we use LIKE?

Thanks in advance.

Regards,
Tamal
User avatar
pikolo2510
Joined: 05 Jul 2017
Last visit: 18 Jul 2021
Posts: 448
Own Kudos:
778
 [4]
Given Kudos: 294
Location: India
GMAT 1: 700 Q49 V36
GPA: 4
GMAT 1: 700 Q49 V36
Posts: 448
Kudos: 778
 [4]
4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hey tamal,

I think you need to understand the usage of the word like. Let me help you with an example

Like tamal, Rahul is good in studies.

What does this sentence say? Tamal is good in studies and so is Rahul

Now coming back to your doubt. It means just as photosynthesis enables animals to convert oxygen to energy, so does respiration enable animals to do the same

Does this make any sense at all? No. Hence the comparison used is incorrect.

Hope this helps. Let me know if you still have any queries

Posted from my mobile device
User avatar
janadipesh
Joined: 10 Jun 2014
Last visit: 23 Jun 2021
Posts: 69
Own Kudos:
Given Kudos: 286
Location: India
Concentration: Operations, Finance
WE:Manufacturing and Production (Energy)
Posts: 69
Kudos: 78
Kudos
Add Kudos
Bookmarks
Bookmark this Post
we use 'like' for Noun, pronoun and 'as' for clause ...so why B is incorrect.. Pls help
User avatar
jackspire
Joined: 22 Sep 2017
Last visit: 10 Apr 2020
Posts: 130
Own Kudos:
37
 [4]
Given Kudos: 97
Posts: 130
Kudos: 37
 [4]
3
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Hello tamal99

5. Like photosynthesis, which allows plants to convert carbon dioxide and water into organic food, cellular respiration
enables animals to convert oxygen into energy.

isn't it a Noun to Noun comparison and if that is the case then can't we use LIKE?

Grammatically, you are absolutely right, but check the meaning of the sentence. When we use like for comparison of two nouns it means that both do the same function.
Here the option 5 tells that photosynthesis and cellular respiration both do the same function i.e. enable animals to convert oxygen into energy.
However, the function of photosynthesis is different from that of cellular respiration.
So, we can't compare both these nouns.
As per the context of the sentence, the functions of photosynthesis and cellular respiration is being compared. For this reason, we need an "as" here.

Please note that GMAT gives more importance to Logical meaning than to grammar.
So, we can reject the option 5.

Hope it helps.
Not an expert.
User avatar
VerbalBot
User avatar
Non-Human User
Joined: 01 Oct 2013
Last visit: 04 Jan 2021
Posts: 18,836
Own Kudos:
Posts: 18,836
Kudos: 986
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Moderators:
GMAT Club Verbal Expert
7445 posts
GMAT Club Verbal Expert
234 posts
188 posts