Odisha HSC (Class 10) — Answer Writing
Three hours, by hand, against a marking scheme the student never sees — that is what a Odisha Class 10 paper is. The Practice Studio puts that scheme on the other side of the page: write an answer, and it comes back marked point by point with the model answer beside it.
General Instructions: (i) All questions are compulsory. (ii) Internal choice is provided in some questions. (iii) Draw neat labelled diagrams wherever necessary.
- 21.Describe the process of double circulation in human beings. Why is it necessary?5
- 22.Write the balanced chemical equation for the reaction of zinc with dilute sulphuric acid and name the gas evolved.3
- 23.State two differences between an autotroph and a heterotroph.2
One Odisha Class 10 answer, from question to marked report
A real question, an attempt with the weaknesses a real attempt has, and the report an AI examiner hands back — in the marking unit Odisha Class 10 genuinely uses. This is the whole product; there is nothing else to sign up for.
Scoped to the paper and topic you pick, at the marks it is genuinely set at.
Describe the process of double circulation in human beings. Why is it necessary?
Type it, dictate it, or write on paper and photograph the page — your handwriting is read.
Photographed, read, and marked in red — every value point scored down the right margin and the omissions written in.
In human beings blood passes through the heart twice in one complete cycle. This is called double circulation. The right side of the heart receives deoxygenated blood and sends it to the lungs?. The left side receives oxygenated blood from the lungs and pumps it to the body. It is necessary because it keeps oxygenated and deoxygenated blood separate and helps in efficient supply of oxygen. The human heart has four chambers, two atria above and two ventricles below, and valves are present between them so that blood flows only in one direction and does not go back.
- The terms pulmonary circulation and systemic circulation, named explicitly
- A labelled diagram, which most boards allot a mark to on a five-mark question of this type
- The link to warm-bloodedness and high energy demand
Model answer for this question
Definition first: blood passes through the heart twice in one complete cycle, hence double circulation. Then the two circuits named — pulmonary circulation (right ventricle to lungs to left atrium) and systemic circulation (left ventricle to body to right atrium). Then the reason: the four-chambered heart keeps oxygenated and deoxygenated blood completely separate, which allows an efficient oxygen supply, necessary in warm-blooded animals whose energy demand for maintaining body temperature is high. Add a labelled diagram of the heart with the two circuits marked.
Photograph the page from your phone and the Studio reads your handwriting — the only way to practise the speed and layout the paper actually tests.
Fast enough to write, read the report and rewrite the same answer in one sitting — which is where the improvement actually comes from.
The scoring behind those pen marks: every value point, what it was worth, what you earned, and a model answer.
- Definition — blood passes twice through the heart in one cycle1/1
Stated correctly and immediately.
- Pulmonary circulation named and described½/1
Described without being named. The term is the mark.
- Systemic circulation named and described½/1
Same — the pathway is right, the term is missing.
- Separation of oxygenated and deoxygenated blood1/1
Correct, and correctly linked to the four-chambered heart's function.
- Necessity — efficient oxygen supply for high energy needs of warm-blooded animals½/1
Half the reason. The energy requirement of maintaining body temperature is the point the key looks for.
Odisha Class 10 at a glance
| Conducting body | Board of Secondary Education, Odisha |
|---|---|
| Mode | Handwritten in an answer booklet |
| Answer types | 5 |
| Marking | State Board — value points |
| Textbook | SCERT Odisha textbooks; NCERT in the +2 Science stream |
How every paper is built
The question types the paper is assembled from, and what each is really asking for.
One line. A wrong keyword loses the whole mark, so precision beats fluency.
Around 30 words. Two creditable points, no introduction.
Around 50-60 words. Three points, or a definition plus an example.
100-120 words. Structure carries marks here: a stated definition, the body in points, and a diagram or example where the subject allows one.
A passage, table or figure followed by sub-questions. The marks are for reading the source, not for recalling the chapter.
- Marked to the Odisha Class 10 scheme
- Model answer, every time
- Handwriting read from a photo
- AI viva on any topic
- Full timed papers
- Every attempt kept in your archive
- WriteA question, answered and marked.
- VivaQuestioned on Life processes and more.
- Full paperA timed paper, one scorecard.