Gaseous Exchange 2

Gaseous Exchange 2

12th Grade

10 Qs

quiz-placeholder

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Gaseous Exchange 2

Gaseous Exchange 2

Assessment

Quiz

Biology

12th Grade

Medium

Created by

nur zulaikadamusa

Used 2+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which protein has high affinity towards oxygen?

Insulin

Collagen

Haemoglobin

Myoglobin

Answer explanation

Haemoglobin has high affinity towards oxygen, allowing it to efficiently transport oxygen in the blood.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the percentage of oxygen saturation as PO2 increases for haemoglobin?

Remains constant

Decreases

Increases

Fluctuates

Answer explanation

As PO2 increases, the percentage of oxygen saturation for haemoglobin increases. This is due to the higher affinity of haemoglobin for oxygen at higher partial pressures of oxygen.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen molecules can one myoglobin bind with?

Three

Two

One

Four

Answer explanation

Myoglobin can bind with one oxygen molecule, making the correct answer choice 'One'.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does myoglobin store O2?

Liver

Brain

Heart

Skeletal muscle

Answer explanation

Myoglobin stores O2 in skeletal muscle, not in the liver, brain, or heart.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what PO2 does myoglobin release O2?

Low

Very low

Medium

High

Answer explanation

Myoglobin releases O2 at a very low PO2, making the correct answer choice 'Very low'.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which protein exhibits cooperative binding of oxygen?

Haemoglobin

Actin

Myoglobin

Keratin

Answer explanation

Haemoglobin exhibits cooperative binding of oxygen, allowing it to efficiently transport oxygen in the blood.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What shape is the oxygen dissociation curve for myoglobin?

Linear

Exponential

Parabolic

Hyperbolic

Answer explanation

The correct shape of the oxygen dissociation curve for myoglobin is hyperbolic, not linear, exponential, or parabolic.

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