Science For You

[Perfection]

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

[Perfection]

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

[Perfection]

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

[Perfection]

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