Science For You

[Perfection]

What is the other name of root cap ?
Calyptra

What is the term used for the occurrence of more than one type of morphologically different leaves on the same plant ?
Heterophylly

In which country the hormone gibberellin was discovered ?
Japan

The edible part of turnip and carrot plants are nothing but roots. Which part of celery and rhubarb plants are consumed ?
Stem

Name the natural process involving loss of water from a plant in the form of liquid drops ?
Guttation

What is the colour of carotin ?
Yellow

What is the technical name of the natural opening in leaves meant for gaseous exchange ?
Stomata

Name the organell where photosynthesis takes place.
Chloroplast

What is the shape of chloroplast in spirogyra ?
Ribbon shaped

What is the other name for Nyctinasty movement ?
Sleep movement

[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

[mikebeatz1]

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

[Perfection]

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'

[gallery]

Science

Which instrument is used for measuring Humidity in air?
Spherometer

Which instrument is used for measuring the growth of plants?
Crescograph

Which instrument is used to measure the magnitude and the direction of magnetic field?
Magnetometer

Which instrument is used for measuring the velocity and finding the direction of the wind?
Anemometer

Which instrument is used for navigating ships?
Sextant

Which instrument is used for recording sound under water?
Hydrophone

Which instrument is used for converting sound?
Micrometer

Which instrument is used for Measuring relative humility of atmosphere?
Hygrometer

Which instrument is used to study the different absorption of light by a liquid?
Spectrophotometer

Which instrument is used for to measuring temperature changes?
Thermoscope

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Science

Which instrument is used for measuring temperature of human body?
Clinical Thermometer

Which instrument is used for measuring radiant heat?
Bolometer

Which instrument is used to compare the intensities of two sources of light?
Photometer

Which instrument is used in Land Surveying for measuring angels horizontally and vertically?
Theodolite

Which instrument is used for check up whether a cell is generating current or not?
Galvanometer

In an ordinary light bulb filament is made of
Tungsten

Who conducted the experiment that produced vacuum for the first time?
Blaise Pascal

Who discovered electricity in lightning?
Benjamin Franklin

The blue colour of the sky is due to
Refraction of light

Which is unit frequency?
Hertz

[gallery]

Science

A mixture of which gases is used in the manufacture of electric bulbs?
Oxygen an Argon

The branch of Physics which deals with the measurement of light is called
Photometry

Who invented lift?
E.G Otis

What kind of mirror is used for view?
Convex mirror

Who invented radio?
Marconi

Which elementary particles are in equal mass?
Neutron and proton

Which of the flowing transformations of energy takes place in a microphone?
Sound into electrical energy

For which purpose a transformer is used?
Conversion of low voltage into high voltage and vice-versa

What does “Angstrom” measure?
Length of light waves used for

Which instrument is detecting and measuring small currents?
Galvanometer