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4

Bacteria utilising radiant energy to prepare food are

A. chemosynthetic bacteria

B. heterotrophic bacteria

C. photosynthetic bacteria

D. free living bacteria

Correct Answer :

C. photosynthetic bacteria


Related Questions

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4

Athlete's Foot' is a disease caused by

A. Bacteria

B. Fungus

C. Protozoa

D. Nematode

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4

What is the bacterial disease in lime fruits?

A. Phythophthora

B. White rust

C. Citrus canker

D. Smut disease

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4

The acid that is secreted in the stomach is

A. HCI

B. H2SO4

C. H2CO3

D. HNO3

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4

The metallic part of haemoglobin is

A. copper

B. molybdenum

C. nickel

D. iron

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4

Damage to hearing is caused by sounds which exceed

A. 70 decibels

B. 80 decibels

C. 100 decibels

D. 120 decibels

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4

Tetrodotoxin is a potent poison that

A. erodes blood vessels

B. blocks conduction of nerve impulses causing respiratory paralysis

C. produces damage to the kidneys

D. produces intestinal bleeding

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4

The study of heart is called

A. haematology

B. cardiology

C. pathology

D. nephrology

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4

Which among the following is a balanced fertiliser for plants?

A. Urea

B. Ammonium Sulphate

C. Nitrates

D. Compost

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4

Plants growing in sunlight are called

A. sciophytes

B. hydrophytes

C. xerophytes

D. heliophytes

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4

DNA is found

A. only in cytoplasm

B. only in nucleus

C. in both cytoplasm and nucleus

D. in hybrid form only

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4

The closing and opening of the leaves of Mimosa pudica (Touch me not) plant is due to _______ movement.

A. chemonastic

B. seismonastic

C. thermonastic

D. photonastic

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4

Hormone promoting maleness in flowering plants is

A. Indole Acetic Acid

B. Kinetin

C. Cytokinin

D. Gibberellin

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4

The disease in which blood clotting does not take place is known as

A. Xerophthalmia

B. Haemopoeisis

C. Haemophilia

D. Haemoerythrin

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4

The universal recipient belongs to blood group

A. A

B. B

C. AB

D. O

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Lymphocytes are manufactured by

A. bone marrow

B. spleen

C. liver

D. lymph nodes

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Niche' refers to

A. place of living

B. type of food

C. place of living and type of food

D. food and movement

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Which of the following is a vector-borne disease for which a special programme has been launched by the Govt. of India?

A. Polio

B. HIV / AIDS

C. Malaria

D. Cancer

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4

It is possible to produce seedless tomato fruits by

A. applying trace elements in tomato fields

B. spraying mineral solution on plants

C. spraying harmones on flowers

D. applying fertilizers containing radioactive elements

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4

Higher plants take up nitrogen as

A. Nitrites only

B. Nitrates only

C. Nitrates and Ammonia

D. Urea

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4

Injection of insulin causes

A. increase in glucose in blood

B. decrease in glucose in blood

C. increase in blood pressure

D. decrease in blood pressure

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4

Bovine Spongiform Encephalopathy refers to

A. Brain Fever

B. Mad Cow Disease

C. Enteric Fever

D. Poultry Diarrhoea

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4

The first sign of life made its appearance on the earth about

A. 1 million years ago

B. 500 million years ago

C. 1 billion or 1000 million years ago

D. 3 billion years ago

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Baldness is seen only in the males because

A. it is a male disorder

B. it is linked with male Y chromosome

C. it is influenced by male hormone

D. females cover it up with wigs

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4

Blood platelets are found in

A. all vertebrates

B. all chordates

C. mammals only

D. birds and mammals

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4

Phonoreceptor refers to the perception of

A. light

B. sound

C. touch

D. smell

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4

Valves are present inside

A. arteries

B. capillaries

C. veins

D. aorta

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4

The saliva contains an enzyme called

A. ptyalin

B. pepsin

C. trypsin

D. erepsin

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4

Which one of the following was probably absent in the atmosphere at the time of origin of life?

A. Ammonia

B. Oxygen

C. Hydrogen

D. Carbon

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4

Bacteria utilising radiant energy to prepare food are

A. chemosynthetic bacteria

B. heterotrophic bacteria

C. photosynthetic bacteria

D. free living bacteria

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4

Plants growing in saline marsh habitats are called

A. Xerophytes

B. Aerophytes

C. Saprophytes

D. Halophytes