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Biology > The Blood > Flashcards

The Blood Flashcards

1
Q

Functions of blood

A
  • Transport food, waste products, hormones and heat (plasma)
  • Transport oxygen
  • Defend against disease
  • Clotting
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2
Q

What is plasma?

A

This is the liquid part of blood, a yellow liquid consisting of about 90% water

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3
Q

Function of plasma

A

To carry (transport)

  • Red blood cells, white blood cells & platelets
  • Nutrients (glucose,amino acids & platelets)
  • Waste (Co2 and Urea)
  • Hormones (adrenaline)
  • Antibodies
  • Clotting proteins
  • Heat
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4
Q

Where are red and white blood cells produced?

A

Bone Marrow

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5
Q

Old red blood cells are broken down by what?

A

The liver

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6
Q

How long do red blood cells live for?

A

About 120 days (4 months)

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7
Q

What are red blood cells also known as?

A

Erythrocytes

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8
Q

How many red blood cells are there per ml of blood?

A

5 million per ml

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9
Q

How many white blood cells are there per ml of blood?

A

7,000 per ml

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10
Q

What are white blood cells also known as?

A

Leucocytes

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11
Q

What are the two types of what blood cells called?

A

Lymphocytes & Monocytes

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12
Q

What do lymphocytes do?

A

Produce antibodies

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13
Q

What do monocytes do?

A

Engulf bacteria and viruses in a process called phagocytosis

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14
Q

Where are lymphocytes stored?

A

In the lymphatic system

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15
Q

Function of platelets?

A

Clotting - keeps blood in and germs out

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16
Q

Where are platelets made?

A

Bone marrow

17
Q

How long do platelets live for?

A

A week

18
Q

How many platelets are there per ml of blood?

A

250,000 per ml of blood

19
Q

What are white blood cells also known as?

A

Thrombocytes

20
Q

What are antibodies?

A

Antibodies are proteins made by white blood cells in response to the presence of foreign chemicals called Antigens

21
Q

What are antigens?

A

Antigens are chemicals that triggers our white blood cells to make antibodies against them

22
Q

Two systems of blood types

A

The ABO system & the Rhesus system

Biology (24 decks)

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