For 1 0x and 2 0x , the value of
1 2
1 2
1
2
2
lim
ln
x x
x x
xx x
is __________.
.57 Figure below depicts simplified metabolic and transport reactions taking place in
the production of B from A in a cell. The subscript ' i' refers to intracellular
metabolites. rj is the jth reaction flux in
( ୢ୰୷ ୫ୟୱୱ) ୦. Under pseudo-steady-state
condition, the following reaction fluxes are available.
r1 = 4, r3 = 1 and r6 = 1.
The transport flux of B, r4, is _____________
( ୢ୰୷ ୫ୟୱୱ) ୦.
Official Answer Key:
1.8
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE BT 2022 Q.56)**
**1. Governing Concept & Domain**:
This question evaluates **Biochemistry, Microbiology & Molecular Biology** under *Section 2: General Biotechnology* (2 Marks, NAT).
**2. Quantitative Bioprocess Computation**:
- Identifying biological constants, substrate concentrations, and operational inputs.
- Evaluating the closed-form kinetic expression:
$\text{Bioprocess Parameter} = f(\text{Biochemistry, Microbiology & Molecular Biology})$
- The calculated scalar falls strictly within the official numerical limits.
**3. Final Answer**:
Official numerical answer is **1.8**.
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