Process Diagram

Band 6+: Biofuel production: how ethanol is made. Write at least 150 words.

See all user-written answers on this topic

Image for topic: Biofuel production: how ethanol is made. Write at least 150 words.

Our system will evaluate the answer based on this AI-generated description.

The image illustrates ethanol production from biofuel starting with energy (sunlight + carbon dioxide) aiding plant/tree growth; this is followed by harvesting, and pre-processing which releases carbon dioxide; processing involves breaking down cellulose into sugars; microbes are added to convert sugars into ethanol; ethanol is used as a fuel, releasing carbon dioxide again in the process.

Given the complexity of the image, the above description may not be entirely accurate.

Skyrocket your IELTS band score by 1-2 points in under a month with our premium plan!

Check it out

Note: Both the topic and the answer were created by one of our users.

The diagram below shows the production of a biofuel named ethanol.

The production of ethanol is a multi-step linear process in which cellulose derived from trees and plants is treated by chemicals, while this results in the formation (production) of sugars, being finally blended with microbes.

It can be seen that ethanol is made from biological materials:plants and trees. Firstly plants and trees are being saturated by sunlight and CO2,which helps them to grow. The next stage is made by humans to harvest them and then preprocess in a special machine to an extract of cellulose. This cellulose is being processed with chemicals to form sugars. The final stage is microbes are added to the sugars to create the final ethanol fuel. Ethanol fuel is used by many types of vehicles that emit carbon dioxide into nature and the process restarts again.

Word Count: 142

Check Your Answer On This Topic?

Check My Answer

Generate A Band-9 Sample Answer?

Generate A Sample

Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

ethanol: 4

cellulose: 3

trees: 3

sugars: 3

being: 3

Try using synonyms for the above words

Task Response

The report provides a clear and comprehensive overview of the ethanol production process. It successfully identifies the cyclical nature of the process and covers all the key stages mentioned in the description, from the initial growth phase to the final emission of carbon dioxide. The progression of steps is logical and easy to follow. To improve, ensure that the introductory paragraph does not simply repeat the prompt and that the overview (the second paragraph) more clearly summarizes the entire cycle rather than just focusing on the chemical breakdown. Additionally, minor grammatical refinements regarding tense consistency would enhance the overall flow. The report falls short of the required 150 words.

Coherence & Cohesion

The report follows a logical sequence, but the progression between sentences could be smoother. While you use some cohesive devices like 'Firstly' and 'The next stage', the transition between the overview and the body paragraphs is a bit abrupt. To improve, try using a wider variety of linking words and ensure that each sentence flows naturally into the next to create a more seamless narrative of the process.

Lexical Resource

The vocabulary used is generally appropriate for the task, but it is somewhat repetitive and basic in places. For example, the word 'process' and 'final' are used multiple times. To reach a higher band, aim to use more sophisticated synonyms and varied phrasing (e.g., instead of 'the process restarts again', you could use 'completing a cyclical process'). Additionally, ensure that word choices are precise; for instance, 'saturated by sunlight' is not quite the correct collocation for plant growth.

Grammatical Range & Accuracy

There are several grammatical issues that affect the clarity of the report. There are instances of awkward phrasing (e.g., 'The next stage is made by humans to harvest them') and errors in sentence structure (e.g., 'The final stage is microbes are added...'). You should focus on mastering complex sentence structures, such as using relative clauses ('...which results in...') and passive voice ('...are harvested and then pre-processed...') more accurately, as the passive voice is essential for describing industrial processes.

Answers On The Same Topic:

Biofuel production: how ethanol is made. Write at least 150 words.

The process details the method through which the biofuel ethanol is manufactured. Looking from an overall perspective, it is readily apparent that the process is a mixture of natural and man-made and there are three main stages. Initially, there is harvesting of the raw sources, followed by a stage of breaking down and processing the […]

Band 9

Biofuel production: how ethanol is made. Write at least 150 words.

The given figure illustrates the creation cycle of a biofuel known as ethanol. Overall, the figure demonstrates how ethanol is being made, which is then used as a biofuel in modern vehicles. It begins with energy which goes all the way to the harvesting, pre-processing and multiple other procedures to finally become Ethanol which is […]

Band 6+

Biofuel production: how ethanol is made. Write at least 150 words.

The diagram illustrates the process by which ethanol biofuel is produced. Overall, ethanol is manufactured through a cyclical process that begins with plant growth using sunlight and carbon dioxide and ends with the fuel being consumed by vehicles, which release carbon dioxide back into the atmosphere. Initially, plants and trees grow by absorbing sunlight and […]

Band 8+

Biofuel production: how ethanol is made. Write at least 150 words.

The process diagram delineates the data of manufacturing process of making ethanol. In an overall perspective, producing ethanol is a cyclic process. which has seven stages commencing with growing trees & plants and terminates with consuming by vehicles and forming carbon dioxide which is lastly utilised by plants again. To begin with, in production of […]

Band 5+

See All

The diagram below shows the process of producing smoked fish. Summarise and analyze where relevant.

The presented diagram gives information about how smoked fish is made. Overall, the linear process consists of ten primary stages, commencing with harvesting fish from the sea and culminating in smoked fish, the finished product, which is ready for consumption. The initial five steps are mainly involved in ingredient preparation. To begin with, fish is […]

Band 9

The diagram below shows how leather goods are prodiced. Summarise the information by selecting and reporting the main features, and making comparisons where relevant.

The diagram shows how leather goods are made using animal hide. Overall, it is a complex procedure involving both manual and mechanic labor. There are 12 steps in total, beginning from the delivery of animal skin and finishing with the waxing of the product. Initially, animal skin is transported from a farm to the factory […]

Band 7+

The diagram below shows two different processes for manufacturing black tea. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The flowchart illustrates the sequential procedures involved in manufacturing black tea, contrasting the traditional method used for loose tea with the modern technique destined for tea bags. Overall, the manufacturing process consists of several linear stages, beginning with manual harvesting and concluding with a drying phase that locks in flavour. Initially, fresh tea leaves are […]

Band 9

The diagram below shows the life cycle of the salmon. Summarize the information by seledting and reporting the main features, and make comparison where relevant.

The diagram shows the life cycle of a fish,which begins with eggs in freshwater and ends with spawning adult. Overall,there are seven stages starting with the form of an egg and finishing with the spawning adult phase. Initially ,eggs are laid in fresh water and hatch after three months and develop into alevin ,which survive […]

Band 7+

The diagram below shows how orange juice is produced. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The illustration demonstrates the manufacture of orange juice. Overall, the procedure consists of multipal steps, commencing with transferring fresh oranges to a processing plant, followed by extracting oranges into fresh juice. At this stage, waste solid is used to feed animal, while one portion of fresh juice can be used for consumption, and the remanining […]

Band 6+

See All

Band 6+: Biofuel production: how ethanol is made. Write at least 150 words.

Check Your Answer On This Topic?

Generate A Band-9 Sample Answer?

Overall Band Score

Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

Answers On The Same Topic:

Biofuel production: how ethanol is made. Write at least 150 words.

Biofuel production: how ethanol is made. Write at least 150 words.

Biofuel production: how ethanol is made. Write at least 150 words.

Biofuel production: how ethanol is made. Write at least 150 words.

Other Topics:

The diagram below shows the process of producing smoked fish. Summarise and analyze where relevant.

The pictures illustrate the position of a volcano, and a village before and after a volcanic eruption. Provide an overview of the information by identifying and describing the key details, and include comparisons where appropriate. Your report should comprise a minimum of 150 words.

The diagram below shows how leather goods are prodiced. Summarise the information by selecting and reporting the main features, and making comparisons where relevant.

The diagram below shows two different processes for manufacturing black tea. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows the life cycle of the salmon. Summarize the information by seledting and reporting the main features, and make comparison where relevant.

The diagram below shows how orange juice is produced. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Check Your Answer On This Topic?

Generate A Band-9 Sample Answer?

Overall Band Score

Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

Answers On The Same Topic:

Other Topics:

Plans & Pricing

Free

Premium