The buffer substance in blood is

Question

The buffer substance in blood is

A. Calcium carbonate

B. Carbon dioxide

C. Sodium bicarbonate

D. Ammonia

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Comment

Lamarck's theory of inheritance of acquired characters was challenged by

A. August Weismann

B. Hugo de Vries

C. Herbert- Spencer

D. Carl Linnaeus

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Which of these is most consistently observed in Vitamin B12 deficiency?

A. Pigmentation of skin

B. Red, sore tongue with capillary atrophy

C. Megaloblastic anemia

D. Absence of tendon reflexes

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The golden age of Dinosaurs was

A. Palaezoic

B. Cenozoic

C. Mesozoic

D. Proterozoic

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Translocation of food takes place in plants through

A. xylem

B. phloem

C. cambium

D. cortex

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Which one of the following acts as a communication system?

A. Blood

B. Nerve

C. Lymph

D. Enzymes

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The bird that lays the largest egg is

A. crow

B. ostrich

C. cuckoo

D. eagle

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Which of the following plays an important part in photosynthesis?

A. Chloroplast

B. Centrosome

C. Tonoplast

D. Nematoblast

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The eland having endorine as well as exocrine function is

A. Adrenal gland

B. Thyroid gland

C. Pituitary gland

D. Pancreatic gland

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What are the symptoms of Xeroph-thalmia?

A. eye weakness

B. dry skin and night blindness

C. nervous break down

D. All the above

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The hormone secreted when one is frightened or excited

A. pituitrin

B. thyroxine

C. adrenaline

D. parathormone

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Insect pollination is known as

A. Hydrophily

B. Ornithophily

C. Anemophily

D. Entomophily

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The hormone which is Popularly called as stress hormone is

A. Epinephrine

B. Cortisone

C. Thyroxine

D. Insulin

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The country where commercial production of cultured pearls is undertaken on large scale is

A. India

B. Mexico

C. Netherlands

D. Japan

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Temperature treatment which shortens the vegetative period and hastens the flowering is called

A. Phototropism

B. Photoperiodism

C. Vernalisation

D. Thermoregulation

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Whale reproduces by

A. ovipary

B. vivipary

C. ovovivipary

D. fission

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The influenza vaccine was discovered by

A. Salk

B. Khorana

C. Mittel

D. None of the above

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The corn in an underground stem that grows

A. horizontally

B. vertically

C. above the soil

D. obliquely

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pH of blood remains constant due to

A. blood pressure

B. buffer action

C. perspiration

D. respiration

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Bovine Spongiform Encephalopathy refers to

A. Brain Fever

B. Mad Cow Disease

C. Enteric Fever

D. Poultry Diarrhoea

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The latest drug for cancer is obtained from

A. Strychnos nuxvomica

B. Vinca rosea

C. Atropa belladona

D. Phyllanthus niruri

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Sleeping sickness in man is caused by the organism

A. plasmodium

B. entamoeba

C. giardia

D. trypanosome

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Hydrotropism means the growth of roots

A. away from water

B. towards water

C. into water

D. out of water

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The part of the human brain concerned with sight is the

A. Frontal lobe

B. Parietal lobe

C. Temporal lobe

D. Occipital lobe

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The study of heart is called

A. haematology

B. cardiology

C. pathology

D. nephrology

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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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Timberline shows

A. a line of trees

B. the limit of the forest

C. annual rings

D. height of trees

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When does the heart start functioning?

A. At birth

B. After birth

C. Before birth

D. After a week from birth

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Milk fever in cows occurs due to lack of

A. Phosphates

B. Calcium

C. Iron

D. Iodine

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The theory that believes that the first living organism came from another planet is known as

A. Catastrophism

B. Special creation

C. Organic evolution

D. Cosmozoic theory

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The bile contains the pigments

A. haemoglobin and haemoerythrin

B. biliviridin and bilirubin

C. bilirubin and haemocyanin

D. haemoglobin and biliviridin

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Accepted Answer

C. Sodium bicarbonate

The buffer substance in blood is

Correct Answer :

Show all General Biology Set 2 MCQ

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