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hemoglobin

Total questions: 7

Worksheet time: 5mins

Name
Class
Date
1.

The iron is held in the center of the heme molecule by bonds to the four nitrogens of the porphyrin ring.

a)

true

b)

false

2.

Which one of the following is the major hemoglobin in adults?

a)

Hb A

b)

Hb F

c)

Hb S

d)

Hb C

3.

Myoglobin can bind (a)   molecule(s) of oxygen

4.

hemoglobin can bind (a)   oxygen molecule(s)

5.

The release of oxygen from hemoglobin is increased when the pH is increased

a)

true

b)

false

6.

The presence of 2,3-BPG significantly (a)   the affinity of  hemoglobin for oxygen

7.

The thalasemias are characterized by “chocolate cyanosis” (a brownish-blue  coloration of the skin and mucous membranes)

a)

true

b)

false