General Studies 2012 free model test 2- Part 2
26. Identify the incorrect statement.
a) When more red colour is added to a drink it increases its sweetness.
b) Pheromones are chemicals that act outside the body of the secreting individual to influence the behavior of the other.
c) The naturally occurring Porphyrin compounds have a greater binding affinity to metals.
d) Tartaric acid used in Cola drinks gives it an acid taste.
Answer: d
27. Match the Esters and Terpenoids with its flavor.
LIST 1 LIST 2
A) Nerol 1) Lavender
B) Geraniol 2) Apple
C) Methyl Butyrate 3) Rose
D) Linalool 4) Sweet Rose
a) 4,3,2,1
b) 4,2,1,3
c) 1,2,3,4
d) 1,3,4,2
Answer: a
28. Select the incorrect statement with regard to Proteins that play a crucial role in all biochemical processes.
a) Essential amino acids are not synthesized by humans and other mammals.
b) Other than providing structure to the body, proteins are also involved in Movement, Transport and Storage.
c) HDL collects excess cholesterol and transports it back to liver for degradation and excretion from the body.
d) The higher the amount of lipids, the higher is the density of the lipoproteins.
Answer: d
29. Select the correct statement with regard to fats and oils.
a) Fats mainly contain unsaturated fatty acids and Oils mainly contain saturated fatty acids.
b) Though Saturated fats are “bad fats” polyunsaturated fats are both ”good” and “bad” fats.
c) Monounsaturated fats lowers HDL cholesterol while also boosting LDL cholesterol.
d) Transfats are better compared to Saturated fats.
Answer: b
30. Rancidification of cooking oils results in an unpleasant aroma and taste. This can be prevented by:
a) a blanket of an inert gas can be applied to the vapor space in the storage container immediately after production.
b) Keeping all oils in a cool and dry place.
c) Antioxidants like Vitamin E can be added.
d) All
Answer: d
31. Match the Neurotransmitters and their deficiency disorders.
Neurotransmitters Disorders
A) Dopamine 1. Alzhemier’s disease
B) Serotonin 2. Parkinson’s disease
C) Acetylcholine 3. Mental illness
D) Norepinephrine 4. Loss of Muscle tone
a) 2,3,1,4
b) 2,3,4,1
c) 3,2,1,4
d) 4,2,3,1
Answer: a
32. Select the incorrect statement regarding CFC’s which cause ozone layer depletion.
a) CFC’s are also used as propellants and cleaning solvents.
b) Their use have a direct toxic effect on both humans and wildlife.
c) They are both inflammable and non-explosive.
d) They are slowly being replaced by supercritical liquids.
Answer: b
33. The application of biological methods to the study and design of engineering systems and modern technology is called as:
a) Combinatorial chemistry
b) Prebiotic chemistry
c) Bionics
d) Computational chemistry
Answer: c
34. A thermoplastic does not exhibit one of the following characteristics.
a) It is a plastic that becomes a homogenized liquid when heated and hard when cooled.
b) They are more durable when cooled compared to thermosetting plastics.
c) It becomes glass like when frozen.
d) It can be reheated, reshaped and frozen repeatedly and hence reusable unlike thermosetting plastic.
Answer: b
35. Which one of the following drugs is preferred by the military personnel to treat sleepiness in narcoleptics?
a) Caffeine
b) Nicotine
c) Modafinil
d) Oxytocin
Answer: c
36. Circadian Rhythm – the biological clock:
a) Is only observed in animals.
b) In plants it identifies what season it is in and when to flower for the best chance of attracting insects to pollinate them.
c) If both plants and insect pests have their biological clock that are out of phase, it provides the best survival possibility for the plants.
d) Only one biological clock exists per animal and hence there is nothing like “many organs in the body have independent circadian rhythms”
Answer: b
37. When human skin is damaged due to slap or due to allergies to creams and ointments, which of the following reactions take place?
a) The complex protein Histamine is released from the damaged skin which dilates the capillaries.
b) Blood flow is increased even in arterioles which is mediated by nerves and is long lasting.
c) The release of Histamine causes allergic reactions in the skin.
d) All
Answer: d
38. Select the correct statements regarding The “Bread of the Tropics” Cassava / Tapioca.
a) It is rich in Nutrition and Carbohydrates and hence is the staple food of most Africans.
b) Raw Cassava has compounds that generate the poison HCN upon decomposition.
c) The Cassava Mosaic disease (affecting the leaves) and the Brown Streak Disease (affecting the roots) are caused by virus.
d) Both b and c
Answer: d
39. Consuming a greater quantity of sugar results in
a) Liver toxicity
b) Increased blood pressure
c) Increased Uric Acid levels
d) All.
Answer: d
40. A: Insulin stores excess sugar as glycogen in the liver and in muscles.
R: Insulin breaks down stored glycogen when a person is hungry or fasting.
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true and R is false.
d) A is false and R is true.
Answer: b
41. Which one of these effects is observed in wheat plants as a result of global warming?
a) Senescence or Accelerated ageing.
b) Increased production and yield due to premature ageing.
c) Damage to photosynthetic cells.
d) Both a and c
Answer: d
42. Epigenetic changes refers to:
a) The genetic modifications that turns genes on and off without altering the DNA sequence itself.
b) The changes in the genes that are present in the middle of the DNA.
c) The genetic changes that happens while encoding for a particular protein.
d) None.
Answer: a
43. The “Pineapple Disease” is observed in:
a) Pineapple cultivation.
b) Sugarcane cultivation.
c) Farmers cultivating Pineapples.
d) People consuming lot of Pineapples.
Answer: b
44. The Modified Bitumen – modified by adding Rubber to increase the durability of roads has been approved by the Centre for laying highways. Which of the following rubber variety is recommended?
a) Neoprene
b) Chloroprene
c) Isoprene
d) Thiokol
Answer: c
45. A: Breathing cold air is not good for people with heart disease.
R: Heart patients doing physical activity are able to compensate for higher demand of oxygen while breathing cold air.
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true and R is false.
d) A is false and R is true.
Answer: c
46. It is found that Coral reefs are affected by over fishing. Which of the following is the cause for it?
a) Sea Urchins population increase which feed on crustose coralline algae that are necessary for reef growth.
b) The Crustose coralline algae proliferate in numbers that are toxic to coral reefs.
c) Sea Urchins feed on the coral reefs.
d) None
Answer: a
47. The process of Vitrification – in Nuclear Energy refers to:
a) Nuclear fuel usage method inside the core thereby making the fuel more effective.
b) Nuclear waste disposal method of immobilizing radioactive materials.
c) Preparing the liquid form of Coolant from its solid form
d) None.
Answer: b
48. In January 2012 India
a) Approximately 90% of polio infections cause no symptoms at all and they harbor the virus for a long period.
b) OPV is inexpensive, easy to administer and provides 100% immunity.
c) Many cases of Polio results only in temporary paralysis and nerve impulses return to the paralysed muscle within few months.
d) Polio virus survives the acidic conditions of the gastrointestinal tract and replicates very quickly before immune response is mounted.
Answer: b
49. A new wheat strain called Durum wheat “Triticum Turgidum” was bred recently. What is special about this variety?
a) It thrives well in saline soils boosting the quest to feed Earth’s population.
b) It is genetically engineered to be resistant against most of the pests.
c) It is enriched with all Fat soluble vitamins and hence can be used as an excellent supplement in underdeveloped countries.
d) It can thrive well in all climatic conditions
Answer: a
50. After the Superbug, the new community acquired bacteria that is discovered amidst huge population in India
a) NDM 1
b) ha – MRSA
c) ca – MRSA
d) All the above
Answer: c
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