Biology

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Biology

Biology

1 / 139

Where do arteries carry blood?

 

2 / 139

cientist who discovered blood groups was

 

3 / 139

Person having blood group ‘B’ can donate the blood to person having blood group

 

4 / 139

The universal donor belongs to blood group

 

5 / 139

Which parts of the heart receive blood from the lungs?

 

6 / 139

What carries blood away from the heart?

 

7 / 139

Which of the following blood group is called universal donor ?

 

8 / 139

With which of the following body organ is ‘pace-maker’ associated?

 

9 / 139

Average life span of human R.B.C is

 

10 / 139

Red colour of blood is due to presence of

 

11 / 139

Which blood group is universal acceptor?

 

12 / 139

The grouping of blood is based on substances called

 

13 / 139

Which statement about capillaries is correct?

 

14 / 139

In human body lymphocytes are formed in

 

15 / 139

Which of the following blood cells carry oxygen?

 

16 / 139

The normal blood pressure in human beings is

 

17 / 139

Blood group which have no antigen

 

18 / 139

Red blood corpuscles is also known as

 

19 / 139

What is the average Life span of RBC?

 

20 / 139

Main function of white blood corpuscles is

 

21 / 139

Antigens ‘A’ and ‘B’ are absent in persons belong to blood group

 

22 / 139

Human heart is made up of

 

23 / 139

Which of the following blood group is universal donor?

 

24 / 139

Fully mature human RBCs has

 

25 / 139

Purification of blood takes place in

 

26 / 139

The upper chambers of the heart are the

 

27 / 139

Life of red blood cells in the body is

 

28 / 139

Blood is red in colour due to the presence of ________

 

29 / 139

The sound lub-dub lub-dub is produced by

 

30 / 139

Blood group which have no antibodies

 

31 / 139

Name the blood cells in which nucleus is absent.

 

32 / 139

The smallest blood vessels which are one-cell thick, are called ________

 

33 / 139

What carries blood back to the heart?

 

34 / 139

Hemoglobin, the oxygen carrying substance in red blood cells, is a

 

35 / 139

Haemoglobin is an important component of

 

36 / 139

Lymph carries digested and absorbed fat from ________ .

 

37 / 139

Instrument used to measure blood pressure is

 

38 / 139

Which of the following carries oxygen to various parts of human body?

 

39 / 139

An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is

 

40 / 139

Which statement regarding the mammalian heart is correct?

 

41 / 139

Blood pressure is the pressure exerted on the wall of

 

42 / 139

Number of chamber found in human heart is

 

43 / 139

The largest artery in human body is

 

44 / 139

Which blood group is a universal recipient?

 

45 / 139

It is an oxygen carrying protein of red colour concentrated in red blood cells.

 

46 / 139

Which blood group is universal donor?

 

47 / 139

Volume of blood found in a healthy person is

 

48 / 139

Which among the following is also called as ‘power house of the cell’?

 

49 / 139

Produces a usable form of energy for the cell

 

50 / 139

In plants cells,which structure provides a definite shape to the cell and makes it right?

 

51 / 139

Where does protein synthesis take place in a cell?

 

52 / 139

Where is the genetic information of the cell stored?

 

53 / 139

It is a heredity material and contains the genetic information which is passed on from one generation to another.

 

54 / 139

In which of the following organelles does photosynthesis take place?

 

55 / 139

In plants, chloroplasts are necessary for

 

56 / 139

The study of structures of organisms, their cells and their organelles at molecular level is known as

 

57 / 139

It consists of an aqueous ground substance containing a variety of cell organelles and other inclusions such as wastes and storage products.

 

58 / 139

Which cell organelles are involved in photosynthesis?

 

59 / 139

Which one of the following is not an insect:

 

60 / 139

Reflex actions are controlled by :

 

61 / 139

Biotic component of the environment does not include-

 

62 / 139

Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

 

63 / 139

Ptyalin is an enzyme produced in the

 

64 / 139

Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?

 

65 / 139

Pollen grains in plants are produced in

 

66 / 139

Pollination by wind is called

 

67 / 139

Mutation is

 

68 / 139

Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of

 

69 / 139

Plants that grow under average temperature and moisture are called:

 

70 / 139

One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor’s statement?

 

71 / 139

Nymph is the name of young one of

 

72 / 139

Oxygen in our blood is transported by a protein named

 

73 / 139

Pulses are a good source of

 

74 / 139

One of the following is most suitable for study of mutations

 

75 / 139

Plants are killed in winter by frost

 

76 / 139

Number of chromosomes in down’s syndrome is

 

77 / 139

Rain water helps to increase the ____ to some extent.

 

78 / 139

Mumps is a disease caused by

 

79 / 139

Most abundant tissues of our body are

 

80 / 139

Radish is a

 

81 / 139

Outer covering of virus made up of protein is

 

82 / 139

Movements due to light are shown by

 

83 / 139

Our major foods, fibres, spices, fruits and beverage crops are

 

84 / 139

Organic Substances which, in very small amounts, control growth and development called

 

85 / 139

Radioactivity is a phenomenon of the spontaneous emission of

 

86 / 139

Monocot root differs from dicot root in having

 

87 / 139

Night blindness is cause by lack of which vitamin?

 

88 / 139

Norepinephrine increases

 

89 / 139

Pigmentation of skin is due to

 

90 / 139

On which of the following plants did Gregor Mendal perform his classical experiment?

 

91 / 139

Photosynthesis is a process

 

92 / 139

Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?

 

93 / 139

Plant have ____ while animals lack it.

 

94 / 139

Plant bends towards the source of light on account of the movement of curvature known as

 

95 / 139

Radical vascular bundles are those in which

 

96 / 139

Poison glands of snakes are homologous to

 

97 / 139

Monotremes are unique mammals because they

 

98 / 139

Plants wilt due to excess of

 

99 / 139

Normal adult human male has

 

100 / 139

Ramapithecus and Cro-Magnon man are considered

 

101 / 139

Our skin, when exposed to excess sunlight, becomes dark. This is because of our skin pigments called

 

102 / 139

Plants growing on sand are called as

 

103 / 139

Plants developing in dry conditions are

 

104 / 139

Most of the red, blue and purple colours of plants are due to a pigment called

 

105 / 139

Myopia is connected with

 

106 / 139

Prothrombin which helps in clotting of blood is released by

 

107 / 139

Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?

 

108 / 139

Potato is a modified form (outgrowth) of:

 

109 / 139

Out of proteins, lipids and carbohydrates present in a cell membrane, what is true?

 

110 / 139

N2 content is kept constant in the biosphere due to

 

111 / 139

Phloem is a tissue found in

 

112 / 139

Neurospora is used as genetic material because

 

113 / 139

Plants hormone that induces cell division is

 

114 / 139

Placenta is the structure formed

 

115 / 139

O2 released in the process of photosynthesis comes from

 

116 / 139

Pyorrhoea is a disease of the

 

117 / 139

Plants that grow in saline water are called

 

118 / 139

Other than spreading malaria, anopheles mosquitoes are also vectors of

 

119 / 139

Primary phloem develops from

 

120 / 139

Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by

 

121 / 139

Photosynthesis takes place faster in

 

122 / 139

Prokaryotic cells lack

 

123 / 139

Plant development is influenced by

 

124 / 139

Most highly intelligent mammals are

 

125 / 139

Process of cell division can take place by

 

126 / 139

Photo-oxidation is

 

127 / 139

Plants absorb most part of water needed by them through their

 

128 / 139

One of the following is not a function of bones.

 

 

129 / 139

Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with

 

130 / 139

Plants absorb dissolved nitrates from soil and convert them into

 

131 / 139

Plants synthesis protein from

 

132 / 139

Most fish do not sink in water because of the presence of:
I. swim bladder
II. air bladder
III. air sacs
IV. air in spongy bones

 

133 / 139

Photosynthesis generally takes place in which parts of the plant?

 

134 / 139

Movement of cell against concentration gradient is called

 

135 / 139

Plants receive their nutrients mainly from

 

136 / 139

Pollination is best defined as

 

137 / 139

Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to

 

138 / 139

Ozone hole refers to

 

139 / 139

Ordinary table salt is sodium chloride. What is baking soda?

 

Hemoglobin, the oxygen carrying substance in red blood cells, is a

 

Proteins

Person having blood group 'B' can donate the blood to person having blood group

 

B and AB

Out of proteins, lipids and carbohydrates present in a cell membrane, what is true?

 

Carbohydrates are minimum

Blood pressure is the pressure exerted on the wall of

 

Artery

Primary phloem develops from

 

provascular tissue

Pigmentation of skin is due to

 

melanocytes

Which of the following carries oxygen to various parts of human body?

 

Red blood cells

Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?

 

Class

Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to

 

gymnosperms

Instrument used to measure blood pressure is

 

sphygmomanometer

Movement of cell against concentration gradient is called

 

active transport

Prokaryotic cells lack

 

All of these

Which parts of the heart receive blood from the lungs?

 

Left atrium

Plants that grow in saline water are called

 

halophytes

Which statement regarding the mammalian heart is correct?

 

In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs

Pulses are a good source of

 

proteins

Nymph is the name of young one of

 

cockroach

Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by

 

Robert Brown

What carries blood back to the heart?

 

Veins

Rain water helps to increase the ____ to some extent.

 

calcium contents

Ptyalin is an enzyme produced in the

 

salivary glands

Plants absorb most part of water needed by them through their

 

root hairs

Which blood group is universal acceptor?

 

AB+

Oxygen in our blood is transported by a protein named

 

haemoglobin

What is the average Life span of RBC?

 

120 days

Phloem is a tissue found in

 

plants

Which of the following blood cells carry oxygen?

 

R.B.Cs

Process of cell division can take place by

 

mitosis

Pyorrhoea is a disease of the

 

gums

Organic Substances which, in very small amounts, control growth and development called

 

hormones

Other than spreading malaria, anopheles mosquitoes are also vectors of

 

filariasis

Pollen grains in plants are produced in

 

flower

One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?

 

You are infected by a virus

Plants are killed in winter by frost

 

because of desiccation and mechanical damage to the tissues

The upper chambers of the heart are the

 

Atria

Volume of blood found in a healthy person is

 

5-6 litre

Plant bends towards the source of light on account of the movement of curvature known as

 

phototropism

Purification of blood takes place in

 

Kidney

Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement?

 

The flow of solution is not possible through semi permeable membrane

Plants that grow under average temperature and moisture are called:

 

mesophytes

Name the blood cells in which nucleus is absent.

 

Blood Platelets

Photosynthesis generally takes place in which parts of the plant?

 

Leaf and other chloroplast bearing parts

Our major foods, fibres, spices, fruits and beverage crops are

 

flowering plants

Prothrombin which helps in clotting of blood is released by

 

blood platelets

Human heart is made up of

 

Cardiac muscle

Reflex actions are controlled by :

 

The Spinal Chord

Blood group which have no antigen

 

O

On which of the following plants did Gregor Mendal perform his classical experiment?

 

Pea

In plants, chloroplasts are necessary for

 

Photosynthesis

Poison glands of snakes are homologous to

 

salivary glands of vertebrates

In which of the following organelles does photosynthesis take place?

 

Chloroplast

Which statement about capillaries is correct?

 

Their walls are only one cell thick

The grouping of blood is based on substances called

 

Antigens

The normal blood pressure in human beings is

 

120/80

Pollination by wind is called

 

anemophily

Norepinephrine increases

 

blood pressure

The universal donor belongs to blood group

 

O

It is an oxygen carrying protein of red colour concentrated in red blood cells.

 

Haemoglobin

Radical vascular bundles are those in which

 

xylem and phloem occur on the different radii

Plants hormone that induces cell division is

 

cytokinins

Potato is a modified form (outgrowth) of:

 

stem

Plants absorb dissolved nitrates from soil and convert them into

 

free nitrogen

Plants wilt due to excess of

 

transpiration

In human body lymphocytes are formed in

 

Bone marrow

Photosynthesis takes place faster in

 

white light

Which among the following is also called as 'power house of the cell'?

 

Mitochondria

Mutation is

 

a change that is inherited

The study of structures of organisms, their cells and their organelles at molecular level is known as

 

Cell biology

Plants growing on sand are called as

 

psammophytes

Most highly intelligent mammals are

 

dolphins

Most of the red, blue and purple colours of plants are due to a pigment called

 

anthocyanin

Our skin, when exposed to excess sunlight, becomes dark. This is because of our skin pigments called

 

melanin

Produces a usable form of energy for the cell

 

Mitochondria

The largest artery in human body is

 

Aorta

Average life span of human R.B.C is

 

120 days

Mumps is a disease caused by

 

virus

Main function of white blood corpuscles is

 

To produce immune system of body

Myopia is connected with

 

eyes

What carries blood away from the heart?

 

Arteries

Radish is a

 

modified root

O2 released in the process of photosynthesis comes from

 

water

Blood group which have no antibodies

 

AB

It is a heredity material and contains the genetic information which is passed on from one generation to another.

 

DNA

Which blood group is universal donor?

 

O-

Photosynthesis is a process

 

reductive, endergonic and anabolic

Which blood group is a universal recipient?

 

AB

Photo-oxidation is

 

All of the these

Number of chromosomes in down's syndrome is

 

47

Which cell organelles are involved in photosynthesis?

 

Chloroplasts

Lymph carries digested and absorbed fat from ________ .

 

Intestine

Life of red blood cells in the body is

 

120 days

Plants synthesis protein from

 

amino acids   

Outer covering of virus made up of protein is

 

capsid

The smallest blood vessels which are one-cell thick, are called ________

 

Capillaries

N2 content is kept constant in the biosphere due to

 

nitrogen cycle

cientist who discovered blood groups was

 

Karl Landsteiner

Fully mature human RBCs has

 

No nucleus

Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with

 

only conifers

Haemoglobin is an important component of

 

RBC

Ramapithecus and Cro-Magnon man are considered

 

ancestors of modern man

Neurospora is used as genetic material because

 

it has short life cycle of 10 days

Placenta is the structure formed

 

by the union of foetal and uterine tissue

Biotic component of the environment does not include-

 

Soil system

Number of chamber found in human heart is

 

4

Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of

 

enzymes

Red blood corpuscles is also known as

 

Erythrocytes

Red colour of blood is due to presence of

 

Hemoglobin

Blood is red in colour due to the presence of ________

 

Chlorophyll

Plants receive their nutrients mainly from

 

soil

Night blindness is cause by lack of which vitamin?

 

Vitamin A

Most fish do not sink in water because of the presence of:
I. swim bladder
II. air bladder
III. air sacs
IV. air in spongy bones

 

I and II are correct

Where does protein synthesis take place in a cell?

 

Ribosomes

Pollination is best defined as

 

transfer of pollen from anther to stigma

Ozone hole refers to

 

decrease in thickness of ozone layer in stratosphere

Radioactivity is a phenomenon of the spontaneous emission of

 

All of the these

One of the following is not a function of bones.

 

 

Secretion of hormones for calcium regulation in blood and bones

Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?

 

By denitrification

Plants developing in dry conditions are

 

xerophytes

Monocot root differs from dicot root in having

 

well developed pith

Monotremes are unique mammals because they

 

lay eggs

Which of the following blood group is called universal donor ?

 

O-

In plants cells,which structure provides a definite shape to the cell and makes it right?

 

Cell wall

An individual whose blood type is B may in an emergency, donate blood to a person whose blood type is

 

AB or B   

Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria and Vibrio comma causes

 

cholera

Ordinary table salt is sodium chloride. What is baking soda?

 

Sodium bicarbonate

Where do arteries carry blood?

 

Heart

Which one of the following is not an insect:

 

Spider

Where is the genetic information of the cell stored?

 

Cell membrane

Most abundant tissues of our body are

 

connective

Movements due to light are shown by

 

flowering plants

Plant development is influenced by

 

quality, quantity and duration of light

Plant have ____ while animals lack it.

 

cellulose

Which of the following blood group is universal donor?

 

O

With which of the following body organ is 'pace-maker' associated?

 

Heart

One of the following is most suitable for study of mutations

 

Haploids

It consists of an aqueous ground substance containing a variety of cell organelles and other inclusions such as wastes and storage products.

 

Cytoplasm

Normal adult human male has

 

14 gram of haemoglobin/100 gram of blood

Antigens 'A' and 'B' are absent in persons belong to blood group

 

'O'

The sound lub-dub lub-dub is produced by

 

Heart

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