BMAT Knowledge 3

Question 1

Which process converts glucose to pyruvate and produces a net gain of 2 ATP molecules?

Accepted Answer

Glycolysis

Answer

Glycolysis occurs in the cytoplasm and yields a net gain of 2 ATP per glucose molecule.

Question 2

What is the empirical formula of a compound containing 40% carbon, 6.7% hydrogen, and 53.3% oxygen by mass?

Accepted Answer

CH₂O

Answer

Dividing percentages by atomic masses gives C:H:O ratio of 3.33:6.7:3.33 = 1:2:1, so CH₂O.

Question 3

A wave has a frequency of 500 Hz and a wavelength of 0.68 m. What is its speed?

Accepted Answer

340 m/s

Answer

Wave speed = frequency × wavelength = 500 × 0.68 = 340 m/s.

Question 4

Which blood vessel carries oxygenated blood from the lungs to the heart?

Accepted Answer

Pulmonary vein

Answer

The pulmonary vein is unique among veins in carrying oxygenated blood from the lungs to the left atrium.

Question 5

When 2 mol of sodium reacts with water, how many moles of hydrogen gas are produced?

Accepted Answer

1 mol

Answer

The reaction 2Na + 2H₂O → 2NaOH + H₂ shows that 2 mol Na produces 1 mol H₂.

BMAT - Assessment Practice Test