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combined biology > blood cells > Flashcards

blood cells Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

what colour is plasma?

A

pale-yellowish liquid

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2
Q

what 2 proteins does plasma contain?

A

fibrinogen , prothrombin

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3
Q

plasma is 70% …

A

H2O

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4
Q

what 4 nutrients does plasma contain?

A

glucose , amino acids, fats, vitamins

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5
Q

what 2 wastes does plasma contain?

A

uric acid , urea

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6
Q

plasma is 55% …

A

blood

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7
Q

what shape does a red blood cell take

A

biconcave shape

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8
Q

why does the red blood cell have an abnormal shape?

A

it increases SA : VOL , helps O2 to be taken ina dn released faster

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9
Q

what does red blood cell contain?

A

haemoglobin

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10
Q

what is the use of the haemoglobin

A

it binds O2 , gives the RBC its red colour

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11
Q

what part of the cell does red blood cell not have?

A

nucleus

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12
Q

why does red blood cell have no nucleus?

A

frees up more space to pack more haemoglobin

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13
Q

why is red blood cell elastic?

A

it allows RBC to squeeze through tiny blood capillaries

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14
Q

what two cells are white blood cells?

A

lymphocytes , phagocytes

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15
Q

what nucleus does lymphocyte have?

A

large, rounded nucleus

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16
Q

what nucleus does phagocyte have?

A

lobed nucleus

17
Q

lymphocyte has a … cytoplasm

A

non-granular cytoplasm

18
Q

phagocyte has a … cytoplasm

A

granular

19
Q

lymphocytes’ role:

A

anti-bodies against microorganisms

20
Q

phagocytes’ role:

A

engulfs and ingests foreign particles

21
Q

why are platelets not true cells?

A

they are membrane-bound fragments of cytoplasm

22
Q

platelets role:

A

clotting of blood

23
Q

BCP: 1. damaged tissue and platelets –> …

A

thrombokinase

24
Q

BCP 2. thrombokinase –> …

A

prothrombin

25
Q

BCP 3. prothombine (inactive) –> …

A

thrombin (active)

26
Q

what does prothombine react with to form thrombin?

A

thrombokinase, calcium ions

27
Q

BCP 4. fibrinogen (soluble) –> …

A

fibrin threads (insoluble)

28
Q

what is the role of fibrin threads?

A

it entangles blood cells to form a clot.

combined biology (3 decks)

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