Question

how do sickle cells affect red blood cells? select all that apply.
a) sickle-cell blood cells change to a disc-shape.
b) sickle-cell blood cells do not effectively transport oxygen.
c) sickle-cell blood cells effectively transport oxygen.
d) sickle-cell blood cells change to a c-shape.

Explanation:

• Option A: Normal red blood cells are disc - shaped, while sickle - cell blood cells are sickle (C - shaped), so A is incorrect.
• Option B: Sickle - cell blood cells have an abnormal shape, which affects their ability to carry oxygen. They do not effectively transport oxygen, so B is correct.
• Option C: Due to their abnormal shape, sickle - cell blood cells cannot effectively transport oxygen, so C is incorrect.
• Option D: Sickle - cell blood cells change to a C (sickle) - shape, so D is correct.

Answer:

B. Sickle - cell blood cells do not effectively transport oxygen, D. Sickle - cell blood cells change to a C - shape