Carriage of O2

mountford.lottie
Quiz by mountford.lottie, updated more than 1 year ago
mountford.lottie
Created by mountford.lottie almost 7 years ago
15
1

Description

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

Resource summary

Question 1

Question
What does each haemoglobin molecule consist of?
Answer
  • 3 polypeptides and a haem group
  • An iron molecule
  • 4 polypeptides and a haem group (with an iron molecule in)

Question 2

Question
Does the haem group have an affinity for oxygen?
Answer
  • Yes
  • No

Question 3

Question
How many oxygen molecules can each haemoglobin molecule hold?
Answer
  • 2
  • 4
  • 8

Question 4

Question
Why do cells in the body tissues need oxygen?
Answer
  • anaerobic respiration
  • aerobic respiration
  • they don't

Question 5

Question
What does the ability of Hb to take up and release O2 depend on?
Answer
  • Oxygen tension
  • type of respiration

Question 6

Question
What shape would you expect an oxyhaemoglobin dissociation graph to be?
Answer
  • n
  • S
  • U
  • directly proportional to one another

Question 7

Question
What is the change in shape of the Hb molecule known as?
Answer
  • Conformational Change
  • Change of shape
  • Denaturation

Question 8

Question
Where do RBC's 'pick up' oxygen?
Answer
  • Lungs
  • Body tissues

Question 9

Question
Which part of the Hb molecule binds to the Oxygen?
Answer
  • Iron in the Haem group
  • an alpha polypeptide chain
  • Haem in the iron group

Question 10

Question
The haemoglobin of a mammalian fetus has a lower affinity for oxygen than that of adult haemoglobin
Answer
  • True
  • False
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