BBCET 141 key facts: June 2026
- Course code: BBCET-141 (written as BBCET 141)
- Course title: Nutritional Biochemistry (theory)
- Programme: IGNOU B.Sc. (Hons.) Biochemistry (BSCBCH), Semester V, Discipline Specific Elective
- Credits: 4 (paired practical BBCEL-142 carries a separate 2 credits)
- Blocks and units: 4 blocks, 12 units
- Maximum marks: 70 (term-end exam); assignment carries 30 per cent weightage
- Duration: 3 hours
- Questions in the June 2026 paper: 8 of 14 marks each; attempt any 5; printed code A-1433
- Paper language: printed in English and Hindi, same numbering
- Sample answers on this page: 2 (Q1 and Q2, both in full); all 8 in the paid file
BBCET 141 Solved Question Paper June 2026 is our fully worked answer file for the IGNOU term-end paper in Nutritional Biochemistry, the Semester V elective that B.Sc. (Hons.) Biochemistry learners take with its lab course BBCEL 142. Read two complete answers below, check the pattern and the repeat topics, then ask for the full file on WhatsApp 9899436384.
1. What the June 2026 Solved Paper Covers
BBCET 141 Nutritional Biochemistry is a 4-credit Discipline Specific Elective theory course in the fifth semester of IGNOU's B.Sc. (Hons.) Biochemistry (BSCBCH) programme.
The course studies how food becomes energy and body structure, and what goes wrong when nutrients are short or toxic substances get in. Its four blocks run from energy metabolism and nutritional assessment, through carbohydrates, fats and proteins, to vitamins and minerals, and end with food and drug interaction, lifestyle diseases and food toxicity.
Our June 2026 file takes the official question paper and answers every one of its 8 questions. You can read Q1 and Q2 in full on this page. The other 6 answers, including the 14-mark answer on psychoactive drugs and nutrients, are kept for the full file.
The answers are built for this exact paper: the vitamin question is split into four 3½-mark parts as printed, the diagram questions come with labelled figures, and every answer names the unit it belongs to so you can go back to the right block of your study material.
2. Two Answers Solved in Full, Six Held Back
Question 1 and Question 2 of the June 2026 paper are solved below in full, in the length a 7-mark part needs.
Each question has two 7-mark parts. We have written roughly 350 to 450 words per part and used tables where the examiner wants comparison. The question text is copied exactly as printed in the official paper.
Dietary guidelines for Indians, and the thermic effect of food
Question 1 (a): Enlist the dietary guidelines for Indians. (7)
Question 1 (b): Explain the thermic effect of food with a suitable diagram. (7)
(a) Dietary guidelines for Indians
The Dietary Guidelines for Indians (DGI) are food-based advice prepared by the ICMR National Institute of Nutrition (NIN), Hyderabad. They convert nutrient requirements into simple food choices for every age group. The latest 2024 edition replaced the 2011 edition after 13 years and gives 17 guidelines.
- Eat a variety of foods to ensure a balanced diet.
- Ensure extra food and healthcare during pregnancy and lactation.
- Ensure exclusive breastfeeding for the first six months and continue breastfeeding till two years and beyond.
- Start homemade semi-solid complementary foods soon after six months of age.
- Ensure adequate and appropriate diets for children and adolescents, both in health and in sickness.
- Eat plenty of vegetables and legumes.
- Use oils and fats in moderation; choose a variety of oil seeds, nuts, nutri-cereals and legumes to meet the need for fats and essential fatty acids.
- Obtain good quality proteins and essential amino acids through suitable food combinations, and avoid protein supplements for building muscle mass.
- Adopt a healthy lifestyle to prevent abdominal obesity, overweight and overall obesity.
- Be physically active and exercise regularly.
- Restrict salt intake.
- Consume safe and clean foods.
- Adopt appropriate pre-cooking and cooking methods.
- Drink an adequate quantity of water.
- Minimise high fat, sugar and salt (HFSS) and ultra-processed foods.
- Include nutrient-rich foods in the diets of the elderly.
- Read food labels to make informed and healthy food choices.
Key numbers examiners like to see: a balanced diet should draw not more than 45 per cent of energy from cereals and millets and up to 15 per cent from pulses, beans and meat, with the rest from nuts, vegetables, fruits and milk. Added salt should stay at or below 5 g a day, using iodised salt. Adults should get 30 to 45 minutes of moderate activity daily, and children about 60 minutes.
Conclusion. ICMR estimates that 56.4 per cent of India's total disease burden is linked to unhealthy diets. The guidelines therefore target both sides of malnutrition: undernutrition and micronutrient deficiency on one side, and obesity, diabetes and heart disease on the other.
(b) Thermic effect of food
The thermic effect of food (TEF), also called diet-induced thermogenesis and in older texts specific dynamic action (SDA), is the rise in energy expenditure above the resting level after a meal. It is the energy the body spends to digest, absorb, transport, metabolise and store the nutrients it has just eaten.
Size of the effect. On a normal mixed diet TEF is about 10 per cent of the energy eaten. It differs sharply by nutrient: protein raises expenditure by about 20 to 30 per cent of its own energy, carbohydrate by about 5 to 10 per cent, and fat by only 0 to 3 per cent.
Why protein costs the most. The body has no store for excess amino acids. They must be deaminated, the nitrogen converted to urea in the urea cycle, and the carbon skeletons turned into glucose or fat. New peptide bonds for body protein also use ATP. Dietary fat, by contrast, is packed into chylomicrons and stored as triacylglycerol with very little conversion cost.
Two components. Obligatory thermogenesis is the fixed cost of digestion, absorption and storage. Facultative (adaptive) thermogenesis is the extra heat produced when a meal activates the sympathetic nervous system; noradrenaline can switch on uncoupling protein 1 (UCP1) in brown adipose tissue, which releases energy as heat.
Diagram to draw. Two panels. Panel A, a vertical bar of total energy expenditure split into basal metabolic rate (about 60 to 70 per cent) at the base, the thermic effect of food (about 10 per cent) in the middle, and physical activity (about 20 to 30 per cent) on top. Panel B, a graph of energy expenditure against time after eating: a flat resting line, a curve rising from the meal arrow, peaking near one hour and falling back to the resting line over 3 to 5 hours, with the area between curve and line shaded and labelled TEF. The full file carries this as a labelled figure.
Time course. Expenditure starts rising within minutes of eating, peaks at about one hour and returns to the resting level over roughly 3 to 5 hours, depending on meal size.
Factors that change TEF. Larger and protein-rich meals raise it; it tends to be lower in older adults and can be blunted in insulin resistance and obesity; caffeine and capsaicin in chilli give small increases. It is measured by indirect calorimetry, comparing oxygen used and carbon dioxide produced after a test meal with the fasting resting value.
Significance. TEF is one of the three parts of total energy expenditure, after basal metabolic rate and before physical activity, the most variable part. It must be counted when energy requirements and energy balance are calculated.
Anthropometric measurements, and carbohydrate intermediates as precursors
Question 2 (a): Discuss the different anthropometric measurements and their importance. (7)
Question 2 (b): Give an account of the intermediates of carbohydrate metabolism used as precursors for the synthesis of various biomolecules. (7)
(a) Anthropometric measurements and their importance
Anthropometry is the measurement of the physical dimensions and gross composition of the body. Because growth and body fat respond to nutrient intake, these measurements are the quickest field method to judge nutritional status in children and adults.
| Measurement | How it is taken | What it shows | Common cut-off |
|---|---|---|---|
| Weight-for-age | Weight on a calibrated scale, compared with WHO growth standards | Underweight (acute plus chronic undernutrition) | Below −2 SD Z-score = underweight |
| Height-for-age | Length (lying) under 2 years, standing height after that | Stunting, a marker of long-term undernutrition | Below −2 SD = stunted; below −3 SD = severe |
| Weight-for-height | Weight compared with the reference for the child's height | Wasting, a marker of recent or acute undernutrition | Below −2 SD = wasted; below −3 SD = severe |
| Body mass index (BMI) | Weight (kg) divided by height (m) squared | Thinness or excess weight in adults | WHO: below 18.5 underweight, 25 overweight, 30 obese; Asian Indian: 23 overweight, 25 obese |
| Mid-upper arm circumference (MUAC) | Tape at the midpoint between shoulder tip and elbow, left arm | Muscle and fat reserve; screens severe acute malnutrition | 6 to 59 months: below 11.5 cm = SAM, 11.5 to 12.5 cm = MAM |
| Skinfold thickness | Callipers (such as Harpenden) at triceps, biceps, subscapular and suprailiac sites | Subcutaneous fat, used to estimate body fat percentage | Compared with age and sex reference tables |
| Waist circumference and waist-hip ratio | Tape at the waist midpoint and at the widest part of the hips | Abdominal (central) obesity and heart-disease risk | Asian waist: 90 cm men, 80 cm women; WHR above 0.90 men, 0.85 women |
| Head circumference | Tape over the brow ridges and the back of the head | Brain growth in the first two years | Below −2 SD suggests microcephaly or poor growth |
Z-score. The child's value minus the median of the reference population, divided by the standard deviation of that population. It lets different ages and sexes be compared on one scale, which is why IGNOU also asks it as a separate short question.
Importance. The methods are cheap, quick, non-invasive and portable, so Anganwadi workers can use them. They detect both undernutrition and overnutrition, support growth monitoring on growth charts, pick out children needing treatment for severe acute malnutrition, flag adults at risk of diabetes and heart disease, and show whether a nutrition programme is working.
Limitations to mention for full marks. Anthropometry cannot identify which micronutrient is missing, oedema in kwashiorkor hides true weight loss, and results depend on correct equipment and trained measurers. It is therefore combined with dietary, biochemical and clinical assessment.
(b) Carbohydrate intermediates as precursors
Glycolysis, the pentose phosphate pathway and the citric acid cycle do more than make ATP. Their intermediates are drawn off as building blocks for amino acids, lipids, nucleotides, haem and complex carbohydrates. This is why these pathways are called amphibolic.
| Intermediate | Pathway branch | Biomolecules made |
|---|---|---|
| Glucose 6-phosphate / glucose 1-phosphate | UDP-glucose formation | Glycogen; UDP-glucuronate for glucuronide conjugation (for example bilirubin) and glycosaminoglycans; UDP-galactose for lactose and glycolipids |
| Ribose 5-phosphate | Pentose phosphate pathway, then PRPP | Purine and pyrimidine nucleotides, DNA, RNA, NAD, FAD and coenzyme A |
| NADPH | Oxidative pentose phosphate pathway | Reducing power for fatty acid, cholesterol and steroid synthesis and for keeping glutathione reduced |
| Fructose 6-phosphate | Hexosamine pathway (with glutamine) | Glucosamine 6-phosphate, amino sugars, sialic acid, glycoproteins and glycosaminoglycans |
| Dihydroxyacetone phosphate | Glycerol 3-phosphate dehydrogenase | Glycerol 3-phosphate, the backbone of triacylglycerols and phospholipids |
| 1,3-Bisphosphoglycerate | Rapoport-Luebering shunt in red cells | 2,3-Bisphosphoglycerate, which lowers haemoglobin's oxygen affinity |
| 3-Phosphoglycerate | Phosphoserine route | Serine, then glycine, cysteine, sphingosine and phosphatidylserine |
| Pyruvate | Transamination (alanine aminotransferase) | Alanine |
| Acetyl-CoA | Acetyl-CoA carboxylase and HMG-CoA reductase routes | Fatty acids, cholesterol (and from it bile acids, steroid hormones, vitamin D) and ketone bodies |
| Oxaloacetate | Transamination | Aspartate, asparagine; aspartate also feeds purine, pyrimidine and urea synthesis |
| α-Ketoglutarate | Transamination or glutamate dehydrogenase | Glutamate, glutamine, proline and arginine |
| Succinyl-CoA | ALA synthase (with glycine) | δ-Aminolaevulinate, porphyrins and haem |
Link between the branches. Citrate leaves the mitochondria and is split in the cytosol to give acetyl-CoA for fatty acid synthesis, while the NADPH from the pentose phosphate pathway supplies the reducing power. In plants and microbes, phosphoenolpyruvate and erythrose 4-phosphate also build aromatic amino acids through the shikimate pathway, a route humans lack.
Conclusion. When cycle intermediates are drawn off for synthesis, anaplerotic reactions such as pyruvate carboxylase refill oxaloacetate. This balance between energy production and biosynthesis explains how dietary carbohydrate supports growth and tissue repair, not just energy supply.
3. Questions Answered Only in the Full File
These 6 questions from the June 2026 paper are shown exactly as printed. Their answers, diagrams and tables are available only in the paid file.
Question 3 (a): Discuss the process of digestion and absorption of dietary lipids with suitable diagrams. (7)
Question 3 (b): Describe the various functions of proteins. (7)
Question 4: Explain the biochemical roles and deficiency diseases of the following vitamins. (4 × 3½)
(a) Tetrahydrofolate (THF)
(b) L-ascorbate
(c) Thiamine pyrophosphate (TPP)
(d) Pyridoxal phosphate (PLP)
Question 5: Explain separately what will happen if one has a deficiency of vitamin A and vitamin D. Mention their clinical symptoms and dietary sources. (14)
Question 6 (a): Discuss the absorption mechanism and physiological role of sodium. (7)
Question 6 (b): State the different types of naturally occurring toxicants and their toxic effects. (7)
Question 7: Write notes on any two of the following. (7 + 7)
(a) Pesticide residue
(b) Atherosclerosis
(c) Protein-energy malnutrition
(d) Energy balanceQuestion 8: Describe the interactions of psychoactive drugs and nutrients. (14)
Between them these cover lipid digestion with diagrams, four B-group and C vitamins, the deficiency pictures of vitamins A and D, sodium absorption, natural toxicants, four short-note options and a full 14-mark answer on psychoactive drugs and nutrients.
4. Paper Pattern and Marks Distribution
The June 2026 paper has 8 questions of 14 marks each; you attempt any 5 for a total of 70 marks in 3 hours.
Six questions split into two 7-mark parts, Question 4 splits into four 3½-mark vitamin parts, and Questions 5 and 8 are single 14-mark answers.
| Question | Structure | Marks | Unit |
|---|---|---|---|
| Q1 | (a) dietary guidelines; (b) thermic effect of food with diagram | 7 + 7 | Units 1 and 2 |
| Q2 | (a) anthropometric measurements; (b) carbohydrate intermediates as precursors | 7 + 7 | Units 3 and 4 |
| Q3 | (a) lipid digestion and absorption with diagrams; (b) functions of proteins | 7 + 7 | Units 5 and 6 |
| Q4 | THF, L-ascorbate, TPP and PLP | 4 × 3½ | Unit 7 |
| Q5 | Vitamin A and vitamin D deficiency, symptoms and sources | 14 | Unit 8 |
| Q6 | (a) sodium absorption and role; (b) naturally occurring toxicants | 7 + 7 | Units 9 and 12 |
| Q7 | Notes on any two of four options | 7 + 7 | Units 2, 6, 11 and 12 |
| Q8 | Psychoactive drug and nutrient interactions | 14 | Unit 10 |
The format has changed in the last two years, and this matters for how long each answer should be. Earlier papers asked more, shorter questions.
| Session | Questions printed | Attempt | Marks per question |
|---|---|---|---|
| December 2023 | 9 | Any 7 | 10 |
| June 2024 | 9 | Any 7 | 10 |
| June 2025 | 8 | Any 5 | 14 |
| June 2026 | 8 | Any 5 | 14 |
Older papers are still useful for topic practice, and you can find them on our IGNOU Previous Year Question Paper page. Just remember that a 10-mark answer from 2024 needs to grow into a 14-mark answer for the current pattern.
5. Blocks and Units Behind Each Question
BBCET 141 has 4 blocks and 12 units, and every June 2026 question can be traced to one of them.
The block and unit titles below come from the official course listing on eGyanKosh. The topics in the third column are the ones IGNOU has actually examined from each unit in the papers we checked.
| Block | Unit | Topics examined from this unit |
|---|---|---|
| Block 1: Introduction to Nutrition and Energy Metabolism | Unit 1: Introduction to Nutrition | Dietary guidelines for Indians; RDA, EAR, TUL and DRIs; micronutrient definitions |
| Block 1: Introduction to Nutrition and Energy Metabolism | Unit 2: Energy Metabolism | Thermic effect of food (SDA); factors affecting metabolic rate and RMR; energy balance |
| Block 1: Introduction to Nutrition and Energy Metabolism | Unit 3: Assessment of Nutritional Status | BMI and anthropometric indicators; Z-score; MUAC and skinfolds |
| Block 2: Macronutrients in Health | Unit 4: Dietary Carbohydrates and Health | Carbohydrate intermediates as precursors; dietary fibre; hormonal control of blood glucose |
| Block 2: Macronutrients in Health | Unit 5: Dietary Fats and Health | Essential fatty acids; lipid digestion and absorption; lipotropic factors |
| Block 2: Macronutrients in Health | Unit 6: Dietary Proteins and Health | Functions of proteins; nitrogen balance and protein turnover; amino acid bioavailability |
| Block 3: Micronutrients in Health | Unit 7: Water Soluble Vitamins | Folate and THF, niacin, thiamine (TPP), pyridoxal phosphate; vitamin C and scurvy |
| Block 3: Micronutrients in Health | Unit 8: Fat Soluble Vitamins | Vitamin A and night blindness; vitamin D in calcium absorption; vitamins E and K |
| Block 3: Micronutrients in Health | Unit 9: Minerals | Calcium, phosphorus and magnesium; iron, iodine and copper; sodium absorption |
| Block 4: Special Topics | Unit 10: Food and Drug Interaction | Drug bioavailability and absorption; nutrient effects on drug metabolism; psychoactive drugs |
| Block 4: Special Topics | Unit 11: Lifestyle Diseases | Type 2 diabetes and glucose tolerance test; atherosclerosis and CVD risk; metabolic syndrome |
| Block 4: Special Topics | Unit 12: Food Toxicity | Natural toxicants and mycotoxins; chemical contaminants and pesticide residue; additives and adulterants |
For reading the units themselves, see our BBCET 141 Study Material page, which follows the same block order as this table.
6. Topics That Keep Returning in BBCET 141
Nine BBCET 141 topics appeared in all four official papers we checked, so they are the safest units to revise first.
We counted topics across four official IGNOU papers: December 2023, June 2024, June 2025 and June 2026. The December 2024 and December 2025 papers are listed on IGNOU's site but we could not open them, so they are not counted. Older sessions were not checked.
| Topic | Unit | Sessions it appeared in | Count (of 4) | In June 2026 as |
|---|---|---|---|---|
| Dietary guidelines and reference intakes (RDA, EAR, TUL, DRIs) | Unit 1 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q1(a) (Sample 1) |
| Anthropometry, BMI and Z-score | Unit 3 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q2(a) (Sample 2) |
| Proteins: functions, digestion, nitrogen balance, turnover | Unit 6 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q3(b) |
| Water soluble vitamins (folate, niacin, B12, C) | Unit 7 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q4 |
| Fat soluble vitamins A, D, E and K | Unit 8 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q5 |
| Minerals (calcium, iodine, iron, magnesium, sodium) | Unit 9 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q6(a) |
| Food and drug interaction | Unit 10 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q8 |
| Lifestyle diseases (diabetes, CVD, atherosclerosis) | Unit 11 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q7(b) |
| Food toxicants, contaminants and pesticide residue | Unit 12 | Dec 2023, Jun 2024, Jun 2025, Jun 2026 | 4 | Q6(b), Q7(a) |
| Thermic effect of food (specific dynamic action) | Unit 2 | Dec 2023, Jun 2024, Jun 2026 | 3 | Q1(b) (Sample 1) |
| Metabolic rate factors and parts of energy expenditure | Unit 2 | Dec 2023, Jun 2024, Jun 2025 | 3 | Related: Q7(d) |
| Dietary lipids: essential fatty acids, functions, digestion | Unit 5 | Dec 2023, Jun 2025, Jun 2026 | 3 | Q3(a) |
| Carbohydrate intermediates as precursors | Unit 4 | Jun 2024, Jun 2026 | 2 | Q2(b) (Sample 2) |
| Protein-energy malnutrition | Unit 6 | Jun 2025, Jun 2026 | 2 | Q7(c) |
| Lipotropic factors | Unit 5 | Jun 2024, Jun 2025 | 2 | — |
Both solved samples on this page sit on repeat topics: anthropometry has come up in every paper and the thermic effect of food in three of four. For a wider list across courses, see our IGNOU Solved Guess Paper page.
7. Solved File Index and the BBCEL 142 Practical Link
The full file answers all 8 June 2026 questions; 2 are open on this page and 6 are in the paid file only.
| Question | Topic | Marks | Course unit | Where the answer is |
|---|---|---|---|---|
| Q1 | Dietary guidelines; thermic effect of food | 14 | Units 1 and 2 | Sample 1 above |
| Q2 | Anthropometry; carbohydrate intermediates as precursors | 14 | Units 3 and 4 | Sample 2 above |
| Q3 | Lipid digestion and absorption; functions of proteins | 14 | Units 5 and 6 | Full file |
| Q4 | THF, L-ascorbate, TPP, PLP | 14 | Unit 7 | Full file |
| Q5 | Vitamin A and vitamin D deficiency | 14 | Unit 8 | Full file |
| Q6 | Sodium; naturally occurring toxicants | 14 | Units 9 and 12 | Full file |
| Q7 | Short notes (any two of four) | 14 | Units 2, 6, 11 and 12 | Full file |
| Q8 | Psychoactive drug and nutrient interactions | 14 | Unit 10 | Full file |
BBCET 141 itself has no practical component in the term-end paper. Its lab partner, BBCEL 142 Nutritional Biochemistry (Practical), is a separate 2-credit course of seven experiments that BSCBCH learners take in the same semester. This solved paper covers the theory exam only, not the lab record.
If you are preparing the whole semester together, our BSCBCH Question Paper collection groups the other Biochemistry papers of the programme in one place.
8. How Our Answers Are Written and Checked
Every BBCET 141 answer is written to the marks printed against it, mapped to its unit, and checked by a second person before it goes into the file.
We start from the official June 2026 paper, fix the unit for each part, and read the matching eGyanKosh unit before drafting. A 7-mark part gets about 350 to 450 words, a 3½-mark vitamin part about 180 to 220 words, and a 14-mark essay the length of two full parts.
Numbers are checked against primary sources: the 2024 ICMR-NIN guidelines for Q1(a), WHO growth standard cut-offs for Q2(a), and standard biochemistry for pathway names. Where a question says "with suitable diagram", the file includes a labelled figure.
We also studied the December 2023, June 2024 and June 2025 papers, so the file points out when a June 2026 question repeats an older one. That helps you see which answers are worth learning well for the next session.
9. Programmes That Include BBCET 141
BBCET 141 is taken by learners of IGNOU's B.Sc. (Hons.) Biochemistry (BSCBCH) as a Semester V Discipline Specific Elective, paired with BBCEL 142.
In the IGNOU B.Sc. (Hons.) Biochemistry (BSCBCH) scheme, BBCET 141 and BBCEL 142 must be taken together. The other elective pairs on offer are Basic Microbiology (BBCET 143 with BBCEL 144), Molecular Basis of Non-infectious Human Diseases (BBCET 145 with BBCEL 146) and Plant Biochemistry (BBCET 151 with BBCEL 152).
BSCBCH has a minimum duration of 3 years and a maximum of 6 years. Learners who choose this elective sit the BBCET 141 theory paper in the June or December term-end examination after submitting the course assignment.
Learners in other IGNOU biochemistry degrees may also carry a Nutritional Biochemistry course. Check your own programme guide before you order, because the answers are written to the BSCBCH paper printed above.
10. How to Get the Full Solved Question Paper
Message 9899436384 on WhatsApp with "BBCET 141 June 2026" to get the complete file with all 8 answers.
The file contains the 2 answers shown above plus the 6 answers kept off this page: lipid digestion and protein functions, the four vitamin coenzymes, vitamin A and D deficiency, sodium and natural toxicants, the short notes, and the psychoactive drugs essay. Diagrams are included where the paper asks for them.
Tell us your programme code and exam session in the same message. If you are also sitting other BSCBCH papers in the same term-end exam, ask for them together so you get one reply.
11. BBCET 141 Nutritional Biochemistry FAQs
Quick answers to what BSCBCH learners most often ask us about the BBCET 141 June 2026 file.
How do I get the full solved paper on WhatsApp?
Send a WhatsApp message to 9899436384 with the code BBCET 141 and the session June 2026. Our team replies with the price and delivery details for the PDF. The full file answers all 8 questions from the June 2026 Nutritional Biochemistry paper: the 2 answers you can read on this page plus the 6 answers that appear only in the paid file.
Which questions are solved on this page?
Question 1 and Question 2 are solved in full on this page. Q1 covers the dietary guidelines for Indians and the thermic effect of food with a diagram. Q2 covers anthropometric measurements and the carbohydrate metabolism intermediates that act as precursors for other biomolecules. Questions 3 to 8 are listed with their printed text only, because their answers are kept for the full file.
How many questions must I attempt in the June 2026 paper?
You attempt any five of the eight questions. Every question carries 14 marks, so five answers make up the full 70 marks in 3 hours. Most questions split into two 7-mark parts, Question 4 has four 3½-mark vitamin parts, and Questions 5 and 8 are single 14-mark answers.
Has the BBCET 141 paper pattern changed recently?
Yes. The December 2023 and June 2024 papers had nine questions of 10 marks each, and students attempted any seven. The June 2025 and June 2026 papers have eight questions of 14 marks each, with any five to be attempted. Maximum marks stayed at 70 and time stayed at 3 hours, but each answer now needs more depth, more structure and more length.
Which topics repeat most often in BBCET 141?
Across the four official papers we checked (December 2023, June 2024, June 2025 and June 2026), dietary reference intakes and guidelines, anthropometry, proteins, water soluble vitamins, fat soluble vitamins, minerals, food and drug interaction, lifestyle diseases and food toxicants appeared in all four. The thermic effect of food appeared in three. Revising these units first gives the best return on time.
Is the BBCEL 142 practical part of the BBCET 141 theory exam?
No. BBCEL 142 is a separate 2-credit laboratory course with seven experiments, taken together with BBCET 141 in the fifth semester of BSCBCH. The June 2026 BBCET 141 term-end paper is a written theory exam of 70 marks only. This solved question paper covers that theory paper, so practical records and lab viva preparation are not part of this file.
Who writes and reviews the BBCET 141 answers?
The answers are written by Prateek Talwar and reviewed by Sheetal Kirola at Unnati Educations. Each answer is mapped to its unit in the official BBCET 141 study material, checked against the marks printed on the paper, and written in the length IGNOU examiners expect for 7-mark, 3½-mark and 14-mark questions. Diagrams are added wherever the question asks for one.
Will the June 2026 answers help in the December 2026 exam?
They help, but nobody can promise that the same questions will return. Our check of four official papers shows several topics coming back session after session, such as anthropometry, vitamins, minerals and food toxicants. Practising the June 2026 answers covers these units in the current eight-question format, which makes revision for December 2026 faster and more focused.
12. Who Wrote and Checked the BBCET 141 Answers
The BBCET 141 answers were written by Prateek Talwar and reviewed by Sheetal Kirola.
Prateek Talwar, founder of Unnati Educations, prepares IGNOU science solved papers from the course blocks and the official term-end paper. Sheetal Kirola, Academic Head (M.Ed.), checks every figure against primary sources such as the ICMR-NIN guidelines and WHO growth standards before release.