Q.23: Meso 2,3-Dibromobutane Synthesis Question Statement The compound meso 2,3-dibromobutane is obtained by (A) electrophilic addition of HBr to (E)-1-bromobut-2-ene (B) electrophilic addition of Br2 to (E)-2-butene (C) electrophilic addition […]
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IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Q.22: UV Spectroscopy Transitions Analysis Question Statement The UV spectrum of 2-butanone and the UV spectrum of methyl vinyl ketone (MVK) are independently recorded and compared. Among the various λmax, […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Conversion of Rate Constant from cm³ molecule⁻¹ s⁻¹ to dm³ mol⁻¹ s⁻¹ for O(g) + O₃(g) → 2O₂(g)
Q.21: Rate Constant Unit Conversion Question Statement The rate constant for the reaction O(g) + O3(g) → 2O2(g) is 8.0 × 10–15 cm3 molecule–1 s–1. The rate constant in dm3 […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Correct pairing of enzymes with applications
Q.20: Enzymes and Industrial Applications Matching Question Statement Which one of the following options shows the correct pairing of the enzyme with its corresponding application? P. Papain i. Gluten complex […]
![Q.19: B Cells and T Cells Immunity Assertion-Reason Question Statement Determine the correctness or otherwise of the following Assertion [a] and Reason [r]. Assertion [a]. B cells secrete antibodies against a virus while cytotoxic T cells kill virus-infected cells. Reason [r]. B cells confer active immunity while cytotoxic T cells confer passive immunity. (A) [a] and [r] are true and [r] is the correct reason for [a] (B) [a] and [r] are true but [r] is not the correct reason for [a] (C) [a] is true but [r] is false (D) [a] false but [r] is true](https://www.letstalkacademy.com/wp-content/uploads/2025/12/slide_19-12.jpg)
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
B Cells and T Cells Immunity Assertion-Reason Explained
Q.19: B Cells and T Cells Immunity Assertion-Reason Question Statement Determine the correctness or otherwise of the following Assertion [a] and Reason [r]. Assertion [a]. B cells secrete antibodies against […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Industrial products and their producing microorganisms
Q.18: Microbial Products and Organisms Matching Question Statement Choose the option that shows the correct pairing of the products with their corresponding microorganisms. P. Citric acid i. Micromonospora purpurea Q. […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Diseases and Causative Organisms Matching
Q.17: Diseases and Causative Organisms Matching Question Statement Choose the option that shows the correct pairing of the diseases with their corresponding causative organisms. P. Chagas disease i. Trypanosoma gambiense […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Specific Productivity Cellulase Production Aspergillus niger qp = αμ + β Kinetics
Q.16 The specific productivity (qp) of cellulase production by Aspergillus niger follows a linear relationship with the specific growth rate (μ) and is of the form qp = αμ + […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Cardinality of (P ∩ S) ∪ Q for Real Numbers
Q.10 Let ℝ be the set of all real numbers. Consider the sets P = {x ∈ ℝ : (x – 1)(x2 + 1) = 0}, Q = {x ∈ […]
IIT JAM Biotechnology Previous Year Paper 2015 Video Solution
Enzyme pH Activity Profile
Q.15 An enzyme shows highest activity in the pH range 2.0 – 3.0. At pH 4.0 and pH 7.0, the enzyme exhibits 50% and 1%, respectively, of its highest activity. […]
