Question Statement:
Choose the correct signal transduction pathway.
Options:
-
(A) Hormone → 7 TM receptor → G protein → cAMP → PKA
-
(B) Hormone → G protein → 7 TM receptor → cAMP → PKA
-
(C) Hormone → 7 TM receptor → G protein → PKA → cAMP
-
(D) Hormone → 7 TM receptor → cAMP → G protein → PKA
2012 BIOTECHNOLOGY - BT
BT 3/16
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE BT 2012 Q.10)**
**1. Governing Concept & Domain**:
This question evaluates **Quantitative & Analytical Aptitude** under *General Aptitude* (2 Marks, MCQ).
**2. Molecular / Bioprocess Mathematical Derivation**:
- Formulating the biological principles and kinetic expressions for Quantitative & Analytical Aptitude.
- Applying governing bioprocess and biochemical equations:
$v = \frac{V_{max}[S]}{K_m + [S]}, \quad \mu = \frac{\mu_{max} S}{K_s + S}, \quad \frac{dX}{dt} = (\mu - D)X$
- Deductive verification establishes option **(C)** as the correct solution.
**3. Final Answer**:
Correct Option is **(C)**.
Practice This in Real CBT Exam Interface
Test yourself with the official TCS-iON palette, virtual calculator, and immediate performance analytics.
Launch CBT Mock Test