CIE iGCSE Co-Ordinated Science B9.4 Blood Exam Style Questions Paper 1
Question
What is transported by red blood cells?
(A) glucose
(B) insulin
(C) oxygen
(D) urea
▶️Answer/Explanation
Ans: C
Question
The diagram shows some blood viewed under a light microscope.
How many red blood cells are shown?
(A) 1 (B) 2 (C) 5 (D) 7
▶️Answer/Explanation
Ans: D
Question
A student adds 5 g of magnesium ribbon to 20 cm$^{3}$ of dilute hydrochloric acid in a beaker.
The student measures how long it takes for the effervescence to stop.
Which pieces of apparatus does the student use in this experiment?
▶️Answer/Explanation
Ans: C
Question
Sea water is a mixture that contains sodium chloride dissolved in water.
Which row describes sea water?
▶️Answer/Explanation
Ans: C