NEET MCQ Test 4

Question 1

Which hormone regulates blood glucose levels by promoting its uptake into cells?

Accepted Answer

Insulin

Answer

Insulin, secreted by beta cells of the pancreas, lowers blood glucose by facilitating cellular glucose uptake.

Question 2

The hybridization of carbon in methane (CH4) is:

Accepted Answer

sp3

Answer

In methane, carbon forms four equivalent sigma bonds using sp3 hybrid orbitals in a tetrahedral arrangement.

Question 3

Which principle states that it is impossible to simultaneously determine the exact position and momentum of a particle?

Accepted Answer

Heisenberg Uncertainty Principle

Answer

Heisenberg's Uncertainty Principle states that Δx·Δp ≥ h/4π, making simultaneous precise measurements impossible.

Question 4

Meiosis results in daughter cells with:

Accepted Answer

Half the chromosomes of parent

Answer

Meiosis undergoes two division cycles producing four haploid (n) cells from one diploid (2n) parent cell.

Question 5

The speed of light in vacuum is approximately:

Accepted Answer

3 × 10^8 m/s

Answer

The speed of light in vacuum is approximately 3 × 10^8 m/s (299,792,458 m/s exactly).

NEET - National Eligibility cum Entrance Test Practice Test