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AS Level z Biology as (F211 - 2 - Exchange and Transport) Quiz on Carriage of O2, created by mountford.lottie on 01/02/2015.

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Carriage of O2

Carriage of O2

Question 1 of 10

1

What does each haemoglobin molecule consist of?

Select one of the following:

  • 3 polypeptides and a haem group

  • An iron molecule

  • 4 polypeptides and a haem group (with an iron molecule in)

Explanation

Question 2 of 10

1

Does the haem group have an affinity for oxygen?

Select one of the following:

  • Yes

  • No

Explanation

Question 3 of 10

1

How many oxygen molecules can each haemoglobin molecule hold?

Select one of the following:

  • 2

  • 4

  • 8

Explanation

Question 4 of 10

1

Why do cells in the body tissues need oxygen?

Select one of the following:

  • anaerobic respiration

  • aerobic respiration

  • they don't

Explanation

Question 5 of 10

1

What does the ability of Hb to take up and release O2 depend on?

Select one of the following:

  • Oxygen tension

  • type of respiration

Explanation

Question 6 of 10

1

What shape would you expect an oxyhaemoglobin dissociation graph to be?

Select one of the following:

  • n

  • S

  • U

  • directly proportional to one another

Explanation

Question 7 of 10

1

What is the change in shape of the Hb molecule known as?

Select one or more of the following:

  • Conformational Change

  • Change of shape

  • Denaturation

Explanation

Question 8 of 10

1

Where do RBC's 'pick up' oxygen?

Select one of the following:

  • Lungs

  • Body tissues

Explanation

Question 9 of 10

1

Which part of the Hb molecule binds to the Oxygen?

Select one of the following:

  • Iron in the Haem group

  • an alpha polypeptide chain

  • Haem in the iron group

Explanation

Question 10 of 10

1

The haemoglobin of a mammalian fetus has a lower affinity for oxygen than that of adult haemoglobin

Select one of the following:

  • True
  • False

Explanation

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