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science class 10 > life process > Flashcards

life process Flashcards

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Biology 101 flashcards
1
Q

What is blood?

A

Blood is a fluid connective tissue.

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2
Q

what is blood composed of?

A
  1. Plasma (55%)
  2. Blood Cells / Corpuscles (45%)
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3
Q

What is the function of plasma?

A
  1. To maintain body temperature
  2. To maintain amount of mineral and body salt
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4
Q

What does plasma transport?

A

Plasma transports digested food, hormones and waste food

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5
Q

What is another name for rbc?

A

Erythrocytes

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6
Q

What is the shape of rbc or erythrocytes?

A

Circular, bi-concave and disc shaped

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7
Q

In each cubic millimeter how many rbc are there?

A

40-45 lakhs rbc per cubic m

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8
Q

Lifespan of RBC?

A

about 4 months

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9
Q

Why is erythrocytes red?

A

Erythrocytes or RBC are red because they contain pigment called hemoglobin which contains iron and protein and when iron is binded to oxygen it gives red color

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10
Q

Deficiency of RBC causes what?

A

anaemia

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11
Q

what is erythrocytes or rbc made of?

A

Iron and protein called globin

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12
Q

what does hemoglobin form when it combines with oxygen and carbon dioxide?

A

oxygen - oxy-haemoglobin

carbon dioxide - carboxy- haemoglobin

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13
Q

Where are RBC formed and destroyed?

A

formed- bone marrow
destroyed - liver and spleen

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14
Q

What does excess rbc causes?

A

Polycythemia

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15
Q

what does a person with anaemia feel after a short walk

A

tiredness

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16
Q

what is another name for wbc?

A

leucocytes

17
Q

what is the shape or structure of leucocytes?

A

They have no definite shape.

18
Q

Compare wbc with rbc in respect to their size and nucleus

A

Erythrocytes have no nucleus and are comparatively smaller than leucocytes. Leucocytes have nucleus and are larger than erythrocytes

19
Q

types of white blood cells?

A
  1. Granular
  2. Non granular
20
Q

What are granular cells?

A

WBC that contain granules are called granular cells

21
Q

What are granules?

A

Granules are non living particles

22
Q

what are non granular leucocytes?

A

Non granular leucocytes are the wbc that don’t contain granules.

23
Q

list granular leucocytes. (mnemonics : never eat bananas with granules)

A
  1. Neutrophil
  2. eosinophil
  3. basophill
24
Q

list non granular leucocytes . (mnemonics ; lazy monkey avoid granules))

A
  1. Lymphocytes
  2. Monocytes

science class 10 (3 decks)

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