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Science > ( 3 ) TRANSPORTATION VRRRRRRRRRRRRRRRRRRRRRRRRMMMMMMMMMM > Flashcards

( 3 ) TRANSPORTATION VRRRRRRRRRRRRRRRRRRRRRRRRMMMMMMMMMM Flashcards

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Biology 101 flashcards
1
Q

What is diffusion

A

Process of carrying oxygen, nutrients and other useful substances from external environment into cells

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2
Q

What are simple organisms

A

Unicellular organisms

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3
Q

Do simple organisms have a specialised transport system?

A

Nuh uh

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4
Q

What are complex organisms?

A

Human, vertebrates, multicellular plants

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5
Q

Do complex organisms have a specialised transport system?

A

yuh uh

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6
Q

Why do complex organisms need a specialised transport system?

A

For oxygen and nutrients to be carried to all the body cells in complex organisms and waste products can be eliminated

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7
Q

Importance of the function of transport system in organisms

A

to carry out cellular respiration
eliminate toxic waste products from cells

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8
Q

What are the specialised blood vessels in the body?

A

Vein, artery, capillaries

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9
Q

Characteristics of right and left atrium?

A

Thin muscular wall

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10
Q

Function of right atrium

A

Deoxygenated blood from the whole body except lungs enters the right atrium through superior and inferior vena cava

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11
Q

Function of left atrium

A

Oxygenated blood from the lungs enter left atrium through the pulmonary vein

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12
Q

Use of valves in the heart

A

For blood to flow in 1 direction only

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13
Q

Use of Bicuspid, tricuspid and semilunar valves

A

Allows blood flow in only 1 direction from left atrium to left ventricle
Allows blood flow in only 1 direction from right atrium to the right ventricle
Ensures blood flows only in 1 direction and not back into the ventricles

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14
Q

Function of Septum

A

Prevents oxygenated blood from mixing with deoxygenated blood

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15
Q

Difference of Veins and arteries

A

vein transport deoxygenated blood while artery transports oxygenated blood

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16
Q

Function of Veins, Capillaries and arteries

A
  • transport oxygenated blood from lungs to heart
  • allows of exchange of gasses, food and waste products
  • transport deoxygenated blood from the heart to the lungs|
17
Q

Which of the 3 main blood vessels have pulse?

A

Artery

18
Q

Which of the 3 main blood vessles has valves

A

Vein

19
Q

Which of the 3 main blood vessels is the thinnest?

A

Capillary ( 1 cell thick )

20
Q

Which organisms have double blood circulatory systems?

A

Humans and other mammals

21
Q

What is the cycle for the pulmonary circulatory system?

A

Heart -> Pulmonary artery -> Lungs -> Pulmonary Vein -> Back to heart

22
Q

What is the cycle for the systemic circulatory system?

A

heart -> artery -> all parts of the body except the lungs -> Vein -> Back to heart

23
Q

Between the process of diastole and systole which produces the sound “lub” and “dub”

A

Diastole -> dub
Systole -> Lub

24
Q

How is the “dub” sound produced?

A

Produced by the closure of the semilunar valves at the semilunar valves at the aorta and pulmonary artery when relaxation at the ventricles occur

25
Q

How is the “lub” sound produced?

A

Produced by the closure of the tricuspid and bicuspid valves between the atria and the ventricles when contraction of the ventricles occurs

26
Q

What is the contraption used to measure and read the blood pressure ( systole and diastole )

A

Sphygmomanometer ( excuse me what )`

27
Q

How is pulse produced?

A

Produced by the contraction and relaxation of the muscular artery wall

28
Q

Factors that influence the pulse rate

A

Gender, Age, Body health

29
Q

What else does blood transport other than oxygen and nutrients?

A

Waste products from body cells

30
Q

What are medical specialists who study diseases related to human blood?

A

Haematologists

31
Q

Blood is a type of ___________

A

Mixture

32
Q

How is blood separated?

A

Using the centrifugal method with a blood centrifuge

33
Q

Blood consists of _____, ______, ______ and _______

A

RBC, WBC, Platelets and blood plasma

34
Q

What is blood plasma made up of

A

Blood plasma is made up of 90% water and 10% dissolved substances

35
Q

What are the dissolved substances in blood plasma ?

A

Nutrients, Carbon dioxide, enzymes and hormones

36
Q

What happens if blood groups are not compatible?

A

Cause the blood to coagulate and agglutination to occur which can cause death

37
Q

Importance of blood donation?

A

Required for surgery and to treat patients with leukemia, haemophilia and other illnesses

38
Q
A

Science (6 decks)

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