Science and Technology II · Textbook solutions
Cell Biology and Biotechnology
Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. Plus every board question asked from this chapter. · 21 questions
Exercise
21 q
- Fill in the blanks and complete the statements.Ex Q1(a)Methods like artificial insemination and embryo transplant are mainly used for --
- Ex Q1(b)-- -- -- -- is the revolutionary event in biotechnology after cloning.
- Ex Q1(c)The disease related with the synthesis of insulin is --- --- ---.
- Ex Q1(d)Government of India has encouraged the -- -- --- -- for improving the productivity by launching NKM-16.
- Ex Q2Match the pairs.
Column A Column B a. Interferon 1. Diabetes b. Factor 2. Dwarfness c. Somatostatin 3. Viral infection d. Interleukin 4. Cancer 5. Haemophilia - Rewrite the following wrong statements after corrections.Ex Q3(a)Changes in genes of the cells are brought about in non-genetic technique.
- Ex Q3(b)Gene from Bacillus thuringiensis is introduced into soyabean.
- Write short notes.Ex Q4(a)Biotechnology: Professional uses.
- Ex Q4(b)Importance of medicinal plants.
- Answer the following questions in your own words.Ex Q5(a)Which products produced through biotechnology do you use in your daily life?
- Ex Q5(b)Which precautions will you take during spraying of pesticides?
- Ex Q5(c)Why some of the organs in human body are most valuable?
- Ex Q5(d)Explain the importance of fruit processing in human life?
- Ex Q5(e)Explain the meaning of vaccination.
- Ex Q6Complete the following chart. A central oval labelled Merits of Biotechnology has a line running from it to each of eight boxes arranged around it. Every one of the eight boxes is blank.
- Ex Q7Write the correct answer in blank circles. A central circle labelled Uses of stem cells is touched by three larger blank ellipses, one to the upper left, one to the upper right and one below.
- Identify and complete the following correlations.Ex Q8(a)Insulin : Diabetes :: Interleukin : -- -- --
- Ex Q8(b)Interferon : -- :: Erythropoietin : Anaemia.
- Ex Q8(c)------- : Dwarfness :: Factor VIII : Haemophilia.
- Ex Q8(d)White revolution : Dairy :: Blue revolution : -- -- -- --.
- Ex Q9Write a comparative note on usefulness and harmfulness of biotechnology.
What the board has asked from this chapter
Questions per paper · 10 papers · 2019 to 2026
2019: 3 questions per paper. 2020: 6 questions per paper. 2022: 4 questions per paper. 2023: 4 questions per paper. 2024: 3.5 questions per paper. 2025: 3 questions per paper. 2026: 2.5 questions per paper
June 2026
3 q
- Q1(B)(iv)खालील सहसंबंध पूर्ण करा : इंटरफेरॉन : विषाणू संक्रमण : : इरिथ्रोपॉयटीन : ____Complete the following correlation: Interferon : Viral infection : : Erythropoietin : ____________Biotechnology and its Applications
- Q2(B)(v)जैवतंत्रज्ञानाचे दोन व्यावहारिक उपयोग लिहा.Give two commercial applications of Biotechnology.Biotechnology and its Applications
- Q3(vi)मूलपेशी म्हणजे काय ? ते सांगून मूलपेशींचे दोन उपयोग लिहा.What is meant by stem cells? Write any two uses of stem cells.Biotechnology and its Applications
March 2026
2 q
- Q1(B)(iii)ओळखा पाहू मी कोण ? स्कॉटलंड येथे क्लोनिंग पद्धतीने निर्मिलेली मेंढी.Identify me, who am I? I was the first clone sheep born in Scotland.Biotechnology and its Applications
- Q2(B)(ii)खालील तक्ता पूर्ण करा :
अ.क्र. प्रथिने अवयवांचे नांव 1 ____ हाडे 2 इन्शुलिन ____ Complete the following table:Sr. No. Protein Name of Organ 1 ____________ Bones 2 Insulin ____________ Biotechnology and its Applications
July 2025
3 q
- Q1(A)(iii)भारत सरकारने NKM-16 या कार्यक्रमाद्वारे ____ व्यवसायाच्या उत्पादनवाढी करिता प्रोत्साहन दिले आहे.Government of India has encouraged the ____ for improving the productivity by launching NKM-16.
Tap an option to check your answer.
Biotechnology and its Applications - Q2(A)(i)शास्त्रीय कारणे लिहा : मानवी शरीरातील काही अवयव हे बहुमोल आहेत.Give scientific reason: Some of the organs in human body are most valuable.Biotechnology and its Applications
- Q3(vi)टीप लिहा : औषधी वनस्पतींचे महत्त्व.Write a short note on the importance of medicinal plants.Biotechnology and its Applications
March 2025
3 q
- Q1(B)(ii)सहसंबंध लिहा : मधुमेह : इन्सुलिन : : कॅन्सर : ____Write the correct co-relation: Diabetes : Insulin :: Cancer : ____Biotechnology and its Applications
- Q1(B)(iv)जैवतंत्रज्ञानाचे दोन व्यावहारिक उपयोग लिहा.Give any two commercial uses of Biotechnology.Biotechnology and its Applications
- Q4(ii)मूळपेशी म्हणजे काय ? मूळपेशींचे चार उपयोग स्पष्ट करा.What is stem cell? Write any four uses of stem cell.Biotechnology and its Applications
July 2024
3 q
- Q1(B)(iii)सहसंबंध लिहा : श्वेतक्रांती : : दुग्ध उत्पादन : : नील क्रांती : ____Write the correlation: White revolution : Dairy :: Blue revolution : ____Biotechnology and its Applications
- Q2(B)(i)जैवतंत्रज्ञानाचे चार फायदे लिहा.Write down four benefits of Biotechnology.Biotechnology and its Applications
- Q3(vii)पुढील संकल्पना चित्र पूर्ण करून त्या क्षेत्रांचा कोणत्या रोगांच्या उपचारासाठी वापर होतो ? ते लिहा. मुलपेशीच्या उपयोगाची क्षेत्रेComplete the following conceptual picture and write its uses in treatment of various diseases: 'Uses of stem cells' is at the centre, with three empty boxes.Biotechnology and its Applications
March 2024
4 q
- Q2(B)(v)डी. एन. ए. फिंगरप्रिंटींग म्हणजे काय ? या तंत्राचा वापर प्रामुख्याने कोणत्या क्षेत्रात केला जातो ?What is DNA fingerprinting? Where is it mainly useful?Biotechnology and its Applications
- व्याख्या लिहा :Explain the following terms:Q3(ii)(a)मूलपेशीExplain the term: Stem cells.Biotechnology and its Applications
- Q3(ii)(b)क्लोनिंगExplain the term: Cloning.Biotechnology and its Applications
- Q3(ii)(c)जनुकीयदृष्ट्या उन्नत पिके.Explain the term: Genetically modified crops.Genetic Engineering
March 2023
4 q
- Q1(B)(ii)Write the correct co-relation: Insulin : diabetes :: Interferon : ____.Biotechnology and its Applications
- Q2(B)(iii)Write the correct answer in the blank circles of the concept map centred on 'Uses of stem cells'.Biotechnology and its Applications
- Q3(ii)Complete the following chart:
Sr. No. Proteins Name of the Organs 1 Melanin, Keratin ____ 2 ____ Pancreas 3 Haemoglobin, antibodies ____ Proteins and their Sources - Q3(vi)Complete the diagram showing the various processes (steps) in tissue culture.Biotechnology and its Applications
March 2022
4 q
- Q2(B)(iv)Define genetically modified crops and give any two examples.Genetic Engineering
- Refer to the diagram showing a single unspecialised cell which, on division, gives rise on one branch to identical copies of itself and on the other branch to several different specialised cells (a block of epithelial/muscle cells, red blood cells, a muscle fibre, a nerve cell and liver-type cells).Q3(iv)(1)Which process is shown in the given diagram?Biotechnology and its Applications
- Q3(iv)(2)What is the importance of this process?Biotechnology and its Applications
- Q3(iv)(3)Which organs can be transplanted by this process?Biotechnology and its Applications
March 2020
6 q
- Q3(vi)Label the body organization of human in the given figure by writing the name of the organ indicated by each of the boxes.Levels of Body Organization
- Answer the following questions on biotechnology.Q4(ii)(a)What is Biotechnology?Biotechnology and its Applications
- Q4(ii)(b)Give one use of Biotechnology.Biotechnology and its Applications
- Q4(ii)(c)Give one commercial use of Biotechnology.Biotechnology and its Applications
- Q4(ii)(d)Write two bacterial examples of biofertilizer.Biotechnology and its Applications
- Q4(ii)(e)Write two names of crops genetically developed.Genetic Engineering
March 2019
3 q
- Q1(A)(v)Find out the correlation: White revolution : Increase in dairy production :: Green revolution : ____________Biotechnology and its Applications
- Q3(vii)(a)What is biotechnology?Biotechnology and its Applications
- Q3(vii)(b)Explain any two commercial applications of biotechnology.Biotechnology and its Applications
The 10 board questions to practise first
The questions the board asked again come first, most asked first. Each one says how often and when.
Question 1
Asked 4 times: Mar 2019, Mar 2020, Mar 2025, Jun 2026
Q2(B)(v)जैवतंत्रज्ञानाचे दोन व्यावहारिक उपयोग लिहा.Give two commercial applications of Biotechnology.Question 2
Asked 3 times: Mar 2024*, Mar 2025, Jun 2026 (* = numbers or wording changed that year)
Q3(vi)मूलपेशी म्हणजे काय ? ते सांगून मूलपेशींचे दोन उपयोग लिहा.What is meant by stem cells? Write any two uses of stem cells.Question 3
Asked 2 times: Mar 2023, Mar 2026* (* = numbers or wording changed that year)
Q2(B)(ii)खालील तक्ता पूर्ण करा :अ.क्र. प्रथिने अवयवांचे नांव 1 ____ हाडे 2 इन्शुलिन ____ Complete the following table:Sr. No. Protein Name of Organ 1 ____________ Bones 2 Insulin ____________ Question 4
Asked 2 times: Mar 2023, Mar 2025* (* = numbers or wording changed that year)
Q1(B)(ii)सहसंबंध लिहा : मधुमेह : इन्सुलिन : : कॅन्सर : ____Write the correct co-relation: Diabetes : Insulin :: Cancer : ____Question 5
Asked 2 times: Mar 2023, Jul 2024* (* = numbers or wording changed that year)
Q3(vii)पुढील संकल्पना चित्र पूर्ण करून त्या क्षेत्रांचा कोणत्या रोगांच्या उपचारासाठी वापर होतो ? ते लिहा. मुलपेशीच्या उपयोगाची क्षेत्रेComplete the following conceptual picture and write its uses in treatment of various diseases: 'Uses of stem cells' is at the centre, with three empty boxes.Question 6
Asked 2 times: Mar 2019, Jul 2024* (* = numbers or wording changed that year)
Q1(B)(iii)सहसंबंध लिहा : श्वेतक्रांती : : दुग्ध उत्पादन : : नील क्रांती : ____Write the correlation: White revolution : Dairy :: Blue revolution : ____Question 7
Asked 2 times: Mar 2022, Mar 2024* (* = numbers or wording changed that year)
Explain the following terms:Q3(ii)(c)जनुकीयदृष्ट्या उन्नत पिके.Explain the term: Genetically modified crops.Question 8
Asked 2 times: Mar 2019, Mar 2020
Answer the following questions on biotechnology.Q4(ii)(a)What is Biotechnology?Question 9
This type asked 4 times: Mar 2022, Mar 2023, Mar 2024, Mar 2026. This one: Mar 2026
Q1(B)(iii)ओळखा पाहू मी कोण ? स्कॉटलंड येथे क्लोनिंग पद्धतीने निर्मिलेली मेंढी.Identify me, who am I? I was the first clone sheep born in Scotland.Question 10
This type asked 3 times: Mar 2020, Jul 2024, Jul 2025. This one: Jul 2025
Q1(A)(iii)भारत सरकारने NKM-16 या कार्यक्रमाद्वारे ____ व्यवसायाच्या उत्पादनवाढी करिता प्रोत्साहन दिले आहे.Government of India has encouraged the ____ for improving the productivity by launching NKM-16.Tap an option to check your answer.