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Edexcel Biology AS Level

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Biology Unit 1

Biology Unit 1

Question 1 of 7

1

During atrial systole, what is contracted?

Select one of the following:

  • Atrium

  • Ventricles

  • Arteries

Explanation

Question 2 of 7

1

Which is the correct model for DNA replication?

Select one of the following:

  • Identical conservative model

  • Semi-conservative model

Explanation

Question 3 of 7

1

Translation takes place in which organelle?

Select one of the following:

  • Nucleus

  • Ribosomes

  • Liver

Explanation

Question 4 of 7

1

What does Hydrophilic mean?

Select one of the following:

  • "Likes" water

  • "Hates" hydrogen

  • "Hates" water

  • "Likes" hydrogen

Explanation

Question 5 of 7

1

Hypertonic solutions contain

Select one of the following:

  • Less water and more solute

  • More water and less solute

Explanation

Question 6 of 7

1

What are the main components of blood?

Select one of the following:

  • RBC's, WBC's, Fibrinogen, Plasma

  • Erythrocytes, RBC's, Plasma, Platelets

  • Plasma, Erythrocytes, Leucocytes, Platelets

Explanation

Question 7 of 7

1

The Cardiac Cycle starts at the Atrioventricular Node(AV node)

Select one of the following:

  • True
  • False

Explanation

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