Friday 30 October 2015

10 COMMON QUESTION ON BIOLOGY--5

Question 1
The food which gives an athlete instant energy is _______.
  Glucose
  Protein
  Butter
  Vitamin


It's 'Glucose '
Ans. A

Glucose is a primary source of energy for the brain, so its availability influences psychological processes.
Question 2
Heart attack occurs due to?
  Bacteria
  Stopping of heart beat
  Lack of blood supply to the heart itself
  Impairment of heart's working due to unknown reason


It's 'Lack of blood supply to the heart itself '
Ans. C

heart attack happens if the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked and the heart can't get oxygen. Most heart attacks occur as a result of coronary heart disease (CHD).
Question 3
Which of the following parts of human body is affected by Pyria?
  Bronchus
  Small intestine
  Teeth and gums
  Large intestine


It's 'Teeth and gums '
Ans. C

Pyria is ususally a symptom of poor dental hygiene, where the person is notbrushing often, or not adequately enough leading to bacteria growth in and around thegums.
Question 4
Which part of the human brain is the centre of memory, learning, thinking and reasoning?
  Cerebrum
  Hypophysis
  Cerebellum
  Medulla


It's 'Cerebrum '
Ans. A

The cerebrum refers to the parts of the brain containing the cerebral cortex as well as several subcortical structures, including the hippocampus, basal ganglia, and olfactory bulb. In humans, the cerebrum is the superior-most region of the central nervous system (CNS).
Question 5
The branch of agriculture which deals with the feeding, shelter, health and breeding of the domestic animals is called _______.
  Animal Husbandry
  Dairy Science
  Veterinary Science
  Poultry


It's 'Animal Husbandry '
Ans. A

The branch of agriculture that deals with the feeding, caring and breeding of domestic animals is called animal husbandry.
Question 6
‘Survival of the fittest' was proposed in his theory of evolution by______.
  Lamarck
  Darwin
  Mendel
  Hugo de vries


It's 'Darwin '
Ans. B

Darwin published On the Origin of Species with the often misquoted line'Survival of the Fit.
Question 7
Kidney stones are mainly formed by which of the following compound?
  Sodium chloride
  Silicates
  Calcium bicarbonate
  Calcium Oxalate


It's 'Calcium Oxalate '
Ans. D

Calcium oxalate is a chemical compound that forms envelope-shaped crystals, known in plants as raphides. A major constituent of human kidney stones.
Question 8
Which one among the following vitamins is necessary for blood clotting?
  Vitamin – A
  Vitamin – D
  Vitamin – K
  Vitamin - C


It's 'Vitamin – K '
Ans. C

Vitamin K is similar to fat-soluble vitamins the human body needs for complete synthesis of certain proteins that are required for blood coagulation and also certain proteins that the body uses to control binding of calcium in bone and other tissues.
Question 9
Which of the following diseases is caused by a virus?
  Plague
  Polio
  Tetanus
  Leprosy


It's 'Polio '
Ans. B

Polio is a contagious viral illness that in its most severe form causes paralysis, difficulty breathing and sometimes death.
Question 10
Coffee is obtain from which part of plant?
  Flower
  Seed
  Leaf
  Fruit


It's 'Seed '
Ans. B

Coffee is a brewed drink prepared from roasted coffee beans, which are theseeds of "berries" from the Coffee plant.

10 COMMON QUESTION ON BIOLOGY--4

Question 1
Human blood is a viscous fluid due to____.
  Platelets in plasma
  Proteins in blood
  RBC and WBC in blood
  Sodium in serum


It's 'Proteins in blood '
Blood behaves as a non-Newtonian fluid. As such, the viscosity of bloodvaries with shear rate. Blood becomes less viscous at high shear rates like those experienced in peak-systole.
Question 2
Branch of biology which deals with the study of identification, nomenclature and classification of organism is-
  Exobiology
  Ecology
  Taxonomy
  Toxicology


It's 'Taxonomy '
Taxonomy is the science of naming, describing and classifying organisms and includes all plantsanimals and microorganisms of the world.
Question 3
The disease caused by deficiency of protein in children is called
  Pellagra
  Marasmus
  Beri-Beri
  Rickets


It's 'Marasmus '
Proteins are body building elements required by the human body. Marasmusis a severe lack of important nutrients. People affected by marasmus look frail and thin. This is a fatal disease that causes weight loss, and dehydration.
Question 4
What is Myopia ?
  Colour blindness
  Night blindness
  Long sightedness
  Short sightedness


It's 'Short sightedness '
Myopia also known as short- sightedness. It is a condition of the eye where the light that comes in does not directly focus on the retina but in front of it, causing the image that one sees when looking at a distant object to be out of focus, but in focus when looking at a close object.
Question 5
Which one of the following is the sweetest natural sugar ?
  Lactose
  Glucose
  Sucrose
  Fructose


It's 'Fructose '
Fructose is the sweetest of all natural sugar types. It is particularly effective at enhancing the flavour of fruit and berries.
Question 6
Insulin controls the metabolism of ______.
  Fats
  Carbohydrates
  Proteins
  Sugars


It's 'Sugars '
Insulin is a peptide hormone produced by beta cells in the pancreas. When control of insulin levels fails, diabetes mellitus can result.
Question 7
Name of the first successfully cloned deer?
  Drewn
  Dewey
  Drarar
  Delor


It's 'Dewey '
Dewey is the first cloned deer and was born on May 23, 2003.
Question 8
Gas released during Bhopal tragedy was_____.
  Methyl isocyanate
  Potassium isothiocyanate
  Sodium isothiocyanate
  Ethyl isothiocyanate


It's 'Methyl isocyanate '
The Bhopal gas tragedy was a gas leak incident in India. Over 500,000 peoplewere exposed to methyl isocyanategas and other chemicals.
Question 9
By ECG we can observe the activity of _____.
  Heart
  Hung
  Brain
  Muscles


It's 'Heart '
Electrocardiography (ECG) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body.
Question 10
Father of microbiology ________.
  Leeuwenhoeck
  Louis Pasteur
  Robert Koch
  Hensen


It's 'Louis Pasteur '
Louis Pasteur was a French chemist and microbiologist renowned for his discoveries of the principles of vaccination. He is also popularly known as thefather of microbiology.