How many times does oxidation occur in one Krebs cycle?

• (A) Two times
• (B) Three times
• (C) Four times
• (D) Six times

In hydrosere succession, which stage comes just before the sedge meadow stage?

• (A) Phytoplankton stage
• (B) Submerged plant stage
• (C) Reed swamp stage
• (D) Woodland stage

Which part of the brain is responsible for maintaining posture and equilibrium?

• (A) Cerebrum
• (B) Medulla oblongata
• (C) Cerebellum
• (D) Hypothalamus

What is the movement of cytoplasm within a cell called?

• (A) Diffusion
• (B) Osmosis
• (C) Cytoplasmic streaming (Cyclosis)
• (D) Active transport

Which enzyme is deficient in patients with Phenylketonuria (PKU)?

• (A) Tyrosinase
• (B) Phenylalanine hydroxylase
• (C) Amylase
• (D) Lactase

What is the SI unit of magnetic induction?

• (A) Weber
• (B) Tesla
• (C) Henry
• (D) Gauss

What is the formula for the safety speed on a banked road?

• (A) \(v = \sqrt{rg\sin\theta}\)
• (B) \(v = \sqrt{\frac{rg}{\tan\theta}}\)
• (C) \(v = \sqrt{rg\tan\theta}\)
• (D) \(v = rg\tan\theta\)

What is the unit of the \(L/R\) ratio?

• (A) Ohm
• (B) Henry
• (C) Seconds
• (D) Coulomb

What is the relationship between maximum kinetic energy and wavelength in the photoelectric effect?

• (A) \(K.E. \propto \lambda\)
• (B) \(K.E. \propto \lambda^2\)
• (C) \(K.E. \propto \frac{1}{\lambda}\)
• (D) \(K.E. \propto \sqrt{\lambda}\)

What is the moment of inertia for two specific (solid) spheres about their common diameter?

• (A) \( \frac{2}{5}MR^2 \)
• (B) \( \frac{7}{5}MR^2 \)
• (C) \( \frac{14}{5}MR^2 \)
• (D) \( \frac{4}{5}MR^2 \)