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Science - bio Flashcards

1
Q

The largest cell is

A

The egg of an Ostrich

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2
Q

Which is the largest human cell?

A

Ovum

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3
Q

is the longest cell.

A

Nerve Cell

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4
Q

There are _____ number of muscles in humans.

A

639

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5
Q

What is the life span of RBC?

A

120 days

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6
Q

What is the life span of WBC?

A

2-15 days

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7
Q

The number of ribs in a human body is _____.

A

24

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8
Q

Hormones are produced by

A

Endocrine glands

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9
Q

Which is the largest blood vessel in the body?

A

Aorta

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10
Q

Which of the following carries impure blood?

A

Pulmonary artery

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11
Q

What is the Ph value of human blood?

A

7.40

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12
Q

The rarest blood group is __.

A

AB negative

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13
Q

The metal present in the chlorophyll is

A

Magnesium

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14
Q

The number of Chromosomes in the human gene is

A

46

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15
Q

Which of the following acid present in Vinegar?

A

Acetic Acid

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16
Q

The longest and largest bone in the human body is

A

Femur

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17
Q

Which blood vessels have the smallest diameter?

A

Capillaries

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18
Q

Which of the following hormones is a steroid?

A

Estrogen

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19
Q

How many bones are present in human ear

A

6

20
Q

normal blood pressure for humans

A

120/80mm hg

21
Q

largest gland

A

liver

22
Q

The hardest part of the human body

A

enamel

23
Q

Types of tooth present

A

4

24
Q

Gland that controls BP

A

Adrenal

25
Q

How many temporary teeth are in humans

A

20

26
Q

Which gland in the body is both exocrine and endocrine

A

pancreas

27
Q

Muscles in human body

A

639

28
Q

bones and teeth are made of

A

tricalcium phosphate

29
Q

The hormone that stimulates heart beat is

A

Thyroxine

30
Q

Decoding and interpretation of visual information

in brain is associated with

A

Temporal lobe

31
Q

DNA stands for .

A

Deoxy ribonucleic Acid

32
Q

Turmeric is obtained from of a Plant.

A

stem

33
Q

A human skull has number of bones.

A

22 bones

34
Q

Upper most layer of skin is called?

A

Epidermis

35
Q

Which part of the Plant body acts as the carrier of food and other substances to all its parts?

A

Phloem

36
Q

The process of cell division is known as –

A

Mitosis

37
Q

Which salt is found in bone in largest amount

A

Calcium

Phosphate

38
Q

invert sugar

A

sucrose

39
Q

kitchen of cell

A

chloroplast

40
Q

bones in human

A

206

41
Q

The branch of biology which deals with the study of cell is called

A

Cytology

42
Q

DNA was discovered by.

A

James d Watson

43
Q

The chambers which receive the blood from body tissues are called

A

auricles

44
Q

The Chamber of the heart that pumps blood to body tissue is called

A

Ventricles

45
Q

Normal heart beat at rest is about

A

70 to 72 per minute

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