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STD 11 - 9. Biomolecules — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 9. Biomolecules1 Mark
MCQ
Enzymes have a very narrow optima for
  • A
    Light
  • B
    Temperature
  • ✓
    $pH$
  • D
    Humidity
✓

Answer

Correct option: C.
$pH$
c
(c) Each enzyme operates within a narrow range of $pH$. It is most effective at a particular point of this range which is called optimum $pH.$

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Match List $- I$ with List $- II.$

List $- I$ List $- II$
$(a)$ $S$ phase $(i)$ Proteins are synthesized
$(b)$ $G_2$ phase $(ii)$ Inactive phase
$(c)$ Quiescent stage $(iii)$  Interval between mitosis and initiation of $DNA$ replication
$(d)$ $\mathrm{G}_{1}$ phase $(iv)$ $DNA$ replication

Choose the correct answer from the options given below.

$(a) -(b) -(c)- (d)$

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