Hemoglobin - Lecture

Question 1

We get the most energy from ____ when we burn it.

Answer 1

oxygen

Question 2

ATP is produced 15 times more efficiently ____ly than ____ly.

Answer 2

aerobically; anaerobically

Question 3

How many heme groups does hemoglobin have?

Answer 3

4 heme groups

Question 4

How many heme groups does myoglobin have?

Answer 4

1 heme group

Question 5

Each helix of myoglobin can be positioned or ____ on either side of the hemoglobin.

Answer 5

superposed

Question 6

In which form of iron will methemoglobin not work and which form of iron will bind oxygen?

Answer 6

Ferrous iron - methemoglobin will not work
Fe++ - binds oxygen

Question 7

When hemoglobin enters the lungs, it is in the ____ state (deoxygenated). When hemoglobin exits the lungs, is is in the ____ state (oxygenated).

Answer 7

T state; R state

Question 8

As the hemoglobin moves through the lungs and becomes oxygenated, the cascade effect of increasing oxygen is called …

Answer 8

Cooperativity