Chapter 2: Transporting Materials Flashcards

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1
Q

Where do the two circulatory systems from the heart lead?

A

One takes de-oxygenated blood through the lungs and back to the heart. The other takes the now oxygenated blood to the body.

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2
Q

The two bottom chambers of the heart are called the

A

Right and left ventricle

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3
Q

The two top chambers of the heart are called the

A

Right and Left Atrium

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4
Q

What is important to note about a diagram of the heart?

A

Sides are flipped as if you were looking at someone else’s heart.

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5
Q

What does Pulmonary refer to?

A

The lungs

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6
Q

What is the only artery which carries de-oxygenated blood?

A

The Pulmonary artery

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7
Q

Where is the Pulmonary artery located?

A

Middle Right (Remember diagram is flipped)

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8
Q

Where is Pulmonary vein located?

A

Furthest Left

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9
Q

What is the Aorta? Where is it located?

A

Carries oxygenated blood around the body. Middle Left

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10
Q

What is the Vena cava? Where is it located?

A

Carries de- oxygenated blood back to the heart. Furthest Right.

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11
Q

Why does the heart have more muscle on the left ventricle than on the right?

A

The Left ventricle needs to be more powerful as it needs to pump blood around the entire body.

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12
Q

What are arteries?

A

Carry blood away from the heart. Usually are at a high pressure as they have a pulse.

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13
Q

What are veins?

A

Blood vessels that carry blood towards the heart. They do not have a pulse, and are at a lower pressure.

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14
Q

What are capillaries?

A

Tiny blood vessels that link veins and arteries. They have walls only one cell thick so that substances can diffuse in and out of them.

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15
Q

How is a stent put in place?

A

A collapsed metal mesh is placed around a tiny balloon and lowered into the affected artery. The balloon is then inflated, expanding the mesh and holding the artery open.

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16
Q

What can build up, clogging and artery?

A

Cholesterol/Fatty deposits.

17
Q

What are the three components of blood?

A

Red blood cells, Plasma and White blood cells + platelets.

18
Q

What is the function of blood plasma?

A

To fill the arteries/veins and carry substances within the blood.

19
Q

Why are red blood cells biconcave discs?

A

To increase their surface area so that diffusion of oxygen is more efficient.

20
Q

What is haemoglobin?

A

The substance inside red blood cells which can carry oxygen. It also gives them their red appearance.

21
Q

What do red blood cells lack?

A

A nucleus

22
Q

Why are mineral ions needed in plants?

A

To build more of the plant through protein synthesis

23
Q

Why is water needed in plants?

A

It is an element of photosynthesis, and it fills the permanent vacuoles to create a rigid structure, holding the plant upright.

24
Q

What are the advantages of artificial blood?

A

Always available, does not need to be kept refrigerated, no blood type matching is needed.

25
Q

What are the disadvantages of artificial blood?

A

It is expensive, it does not carry as much oxygen, some artificial bloods are insoluble, a lot of artificial bloods are broken down by the body.