Blood (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What percentage of total blood volume does plasma make up?
What percentage of total blood volume does plasma make up?
55%
What percentage of plasma is water?
What percentage of plasma is water?
90%
What is the shape of red blood cells?
What is the shape of red blood cells?
Biconcave
Where does haemoglobin pick up oxygen?
Where does haemoglobin pick up oxygen?
In the lungs
How long do red blood cells live?
How long do red blood cells live?
About 120 days
What is the ratio of red blood cells to white blood cells?
What is the ratio of red blood cells to white blood cells?
700:1
Which white blood cells engulf and digest harmful microorganisms?
Which white blood cells engulf and digest harmful microorganisms?
Phagocytes
Do platelets have a nucleus?
Do platelets have a nucleus?
No, they are cell fragments
What triggers the blood clotting process?
What triggers the blood clotting process?
Damaged body cells release chemicals
Which blood group is the universal donor?
Which blood group is the universal donor?
O
What percentage of Irish people are Rhesus positive?
What percentage of Irish people are Rhesus positive?
About 85%
Which blood component is responsible for oxygen transport?
Which blood component is responsible for oxygen transport?
Red blood cells