Chemistry Extended Essay Exemplar: Seed Lipase Effects on Palm Oil… | RevisionDojo

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IB Chemistry SL Extended Essay Example

To what extent do lipase enzymes from different seeds (Sunflower kernel, Pumpkin, Sesame, Flax, Fenugreek) influence the antioxidant activity and the rate of NaOH neutralization by fatty acids during the hydrolysis of palm oil as a natural product?SL

Official IB Result

IB Grade: B

Criteria A: Focus and Method

5/6

Criteria Strands

A.1Topic communication and explanation

Excellent

A.2Research question formulation and focus

Excellent

A.3Research methodology

Excellent

Criteria Feedback

You communicate the investigation’s purpose clearly and keep the chemistry focus visible throughout.
Your research question is specific and gives the report a clear direction.
You use a well-sequenced method with appropriate experimental stages and repeated trials.

There are inconsistent references to the oil and seed system that weaken clarity.
Some methodological controls and calibration details are not fully explained.
The wording of the rate measure could be defined more precisely.

Criteria B: Knowledge and Understanding

5/6

Criteria Strands

B.1Application of source material

Good

B.2Subject knowledge

Good

B.3Use of terminology and concepts

Excellent

Criteria Feedback

You show solid chemistry knowledge about triglyceride hydrolysis, fatty acids, neutralization, and DPPH analysis.
You use subject-specific terminology accurately in most places.
You connect source material to the scientific explanation in a generally coherent way.

Some quantitative and kinetic ideas are not fully aligned with the measurements you actually made.
A few source applications are broad rather than tightly matched to the exact samples in your investigation.
There are some inconsistencies in terminology and citation detail.

Criteria C: Critical Thinking

9/12

Criteria Strands

C.1Research quality

Good

C.2Analysis depth

Moderate

C.3Discussion and evaluation

Moderate

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Criteria D: Presentation

2/4

Criteria Strands

D.1Structure appropriateness

Excellent

D.2Layout considerations

Moderate

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Loading scores...

Official IB Result

IB Grade: B

Criteria A: Focus and Method

5/6

Criteria Strands

A.1Topic communication and explanation

Excellent

A.2Research question formulation and focus

Excellent

A.3Research methodology

Excellent

Criteria Feedback

You communicate the investigation’s purpose clearly and keep the chemistry focus visible throughout.
Your research question is specific and gives the report a clear direction.
You use a well-sequenced method with appropriate experimental stages and repeated trials.

There are inconsistent references to the oil and seed system that weaken clarity.
Some methodological controls and calibration details are not fully explained.
The wording of the rate measure could be defined more precisely.

Criteria B: Knowledge and Understanding

5/6

Criteria Strands

B.1Application of source material

Good

B.2Subject knowledge

Good

B.3Use of terminology and concepts

Excellent

Criteria Feedback

You show solid chemistry knowledge about triglyceride hydrolysis, fatty acids, neutralization, and DPPH analysis.
You use subject-specific terminology accurately in most places.
You connect source material to the scientific explanation in a generally coherent way.

Some quantitative and kinetic ideas are not fully aligned with the measurements you actually made.
A few source applications are broad rather than tightly matched to the exact samples in your investigation.
There are some inconsistencies in terminology and citation detail.

Criteria C: Critical Thinking

9/12

Criteria Strands

C.1Research quality

Good

C.2Analysis depth

Moderate

C.3Discussion and evaluation

Moderate

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Criteria D: Presentation

2/4

Criteria Strands

D.1Structure appropriateness

Excellent

D.2Layout considerations

Moderate

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.