Science For You

Which plant has the life-span 4000 years ?
Gnetum
What is the most common nutritive tissue for the developing embryos in angisperm known as ?
Endosperm
What is the name of the fruit body of polyporus ?
Basidiocarp
Plants that grow in water are called hydrophytes. What name is given to plants that grow in desert conditions ?
Xerophytes
What is the common name of Agaricus ?
Mushroom
Name the fungus which causes 'Athlet's foot ringworm in man.
Tinea pedis
Who coined the 'Vitamin' ?
Funk in 1912
How many ATP molecules are formed at the end of aerobic respiration ?
38 ATP
Name a mineral and a vitamin whose defiency can cause the disease 'Aniaemia.
Iron and Vitamin B12
What is the chief enzyme that acts on emulsified fat ?
Lipase

What is instrument used to measure the amount of air exchanged during breathing ?
Spirometer
Which vitamin can be synthesised in sunlight in our body ?
Vitamin D
Which organ is called blood bank of the body ?
Spleen
In which organ the bile juice is stored ?
Gall bladder
What is the pigment responsible for the pale yellow colour of the urine ?
Urochrome
What is the term used for a common vision defect that arise at a later stage of about 40 to 45 years?
Presbyopia
What is the structural and function unit of kidney ?
Nephron
Name the carbohydrate that is not digested by the human being.
Cellulose
What is the name of the acid formed during the transport of Carbon-di-oxide ?
Carbonic acid

What is the end product of digestion of proteins ?
Amino acids
Which are the only veins that carry the oxygenated blood ?
Pulmonary veins
Name the mineral essential for synthesis of thyroid hormone ?
Iodine
Name the fatty substance which deposits in the blood arteries of a person suffering from obesity ?
Cholesterol
What is the common name of Larynx ?
Voice box
Pituitary, adrenal and thymus are called endocrine glands. What are liver and salivary glands called ?
Exocrine glands
Where is fat stored in our body ?
Adipose tissue
Ammoniotelic animals excrete ammonia, Ureotelic animals excrete urea. What are excreted by Urecotelic animals ?
Uric acid
Which enzyme acts on starch ?
Amylase
Which is the largest gland in the human body ?
Liver

What is the name of the pigment which helps animal to see in dim light ?
Rhodopsin
What is the term used when animals remain dormant during summer ?
Aestivation
Which mineral is essential to synthesise a respiratory pigment haemoglobin ?
Iron
What is the expansion of ATP ?
Adenosine tri-phosphate
Which group of blood is called universal donor ?
'O' group
What are the various enzymes secreted in the stomach ?
Pepsin and Renin
Which food is the richest in calcium ?
Milk
What is the total number of bones in the human body ?
206
What lubricates the "white of the eye" ?
Lachrymal gland
What is the name of the artery in the wrist, in which doctors feel the pulse usually ?
Radial artery
Why there is a sudden flexion of the leg when blotting paper soaked in a weak acid is placed on the leg of a pitched and suspended frog ?
Due to Flexion reflex

watson and crick liked to play around with LSD and while they were figuring out how DNA worked they had LSD trips where they saw double helix's, not too long after that they discovered that DNA is in the shape of a double helix

Which group of blood is called universal recipient ?
'AB'group
Who discovered Rh factor ?
Landsteiner
Name the protein responsible for blood clotting ?
Fibrinogen
Name the vitamin absent in milk ?
Vitamin 'C'
Name the smallest bone in the human body ?
Stapes or Stirrup bone
What is the chemical name of vitamin B2 ?
Riboflavin
The ventricular systole produces the sound lubb. What is the sound produced by ventricular diastole ?
Dup
What is the name of the pigment present in RBC ?
Haemoglobin
What are the three primary colours differentiated by the animal with the help of pigments in cones ?
Red, Blue and Green
120/80mm Hg is the normal blood pressure of a man. What is the normal pulse pressure ?
40 mm Hg
Name the vitamin present in Citrus fruits ?
Vitamin 'C'

What is the total lung capacity of air ?
5000 to 6000 ml in adult males
What is the name of taste receptors ?
Gustatory receptors
What is the life-span of Red Blood Corpuscles ?
120 days
What is the term to be used when WBC of blood engulf foreign bacteria and other disease causing organisms ?
Phagocytosis
Which vitamin is called phylloquinone ?
Vitamin 'K'
What is the name of the hormone secreted by 'islet of langerhans?'
Insulin
Sensory nerves are called afferent nerves. What are motor nerves called ?
Efferent nerves
How many pairs of spinal nerves are there in man ?
31 pairs
How many ribs are there in human body ?
Twelve on each side

Which cells produce antibodies againest invading antigens ?
White Blood Corpuscles
What is the normal beat of man ?
70-72 times per minute
Which type of WBC has big nucleus ?
Lymphocyte
What is the name of the blood pigment present in prawns ?
Haemocyanin
What is the unit of muscule fibre ?
Sarcomere
What is the weight of adult human heart ?
220-260 g
Name the artery which supplies blood to the heart ?
Cornary artery
What are the two types of proteins rich in muscle fibre ?
Actin and myocin
How many cranial nerves are there in human body ?
12 pairs
Who is called as 'Father of Taxonomy' ?
Linnaeus

Who wrote the book 'Origin of species ?
Charles Darwin
What is the brain size of mordern average man ?
1600 CC
Which Zoogeographical realms is called 'The museum of the world' ?
Australian region
Who proposed the term 'species' ?
John Ray in 17th Century
Who propsed 'Germplasm' theory ?
August Weismann
Name the vestigeal organ in human body which often gets infected and leads to appendicitis.
Vermiform appendix
Which era in Geological time scale is called as 'Age of Mammals ?
Cenozoic era
Who proposed bio-genetic law ?
Haeckel
What is the stock of ancestors from which man, monkeys and apes have evolved ?
Anthropoid mammals
What is the name of modern horse according to evolution ?
Equus

What is the total lung capacity of air ?
5000 to 6000 ml in adult males
What is the name of taste receptors ?
Gustatory receptors
What is the life-span of Red Blood Corpuscles ?
120 days
What is the term to be used when WBC of blood engulf foreign bacteria and other disease causing organisms ?
Phagocytosis
Which vitamin is called phylloquinone ?
Vitamin 'K'
What is the name of the hormone secreted by 'islet of langerhans?'
Insulin
Sensory nerves are called afferent nerves. What are motor nerves called ?
Efferent nerves
How many pairs of spinal nerves are there in man ?
31 pairs
How many ribs are there in human body ?
Twelve on each side