Multiple choice

Directions: Choose the correct option to fill in the blank.

Haemoglobin facilitates metabolism among living organisms as it helps the constituent body cells _____ more of oxygen.

  1. absorbing

  2. absorb

  3. to absorbing

  4. absorption of

  5. in absorb

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

‘Helps … absorb’ is the correct usage.